Digital Amplifier System
Technical Specifications
Elektrical measurement of mechanical quantitiesContents
1
Survey of the chapters . . . 4 Notes on safety . . . 6
A Introduction . . . A-1
1 Survey of documentation . . . A-3 1.1 How to use this manual . . . A-4
B DMCplus complete system . . . B-1
1 System design . . . B-3 1.1 Housing types. . . B-8 1.1.1 Device front . . . B-10 1.1.2 Device rear . . . B-13 1.2 Amplifiers for the DMCplus . . . B-15 1.3 Interfaces . . . B-16 1.4 Instruction set . . . B-17 1.5 Synchronisation . . . B-18 2 Components of the system device . . . B-19 2.1 Basic components . . . B-21 2.1.1 Power supply / power pack . . . B-21 2.1.2 CP03 Central processing unit . . . B-25 2.1.3 SY01 Control unit . . . B-32 2.2 Amplifiers . . . B-37 2.2.1 DV01 DC amplifier. . . B-39 2.2.2 DV10 DC amplifier. . . B-40
Printed on 100% chlorine-free paper.
2
2.2.3 DV30 600Hz-CF amplifier . . . B-41 2.2.4 DV35 600Hz-CF amplifier . . . B-42 2.3 Function cards . . . B-43 2.3.1 PI01 Digital input/output board . . . B-43 2.3.2 AU01 Analogue output board . . . B-49 2.3.3 IE01 Interface board . . . B-50 2.3.4 DZ65 Digital counter card . . . B-53 2.3.5 PC01 PCMCIA-hard disk . . . B-61
C Channel connection . . . C-1
1 Connection cable . . . C-3 2 Types of connection for the DV... amplifiers . . . C-5 2.1 Types of connection for DV01 . . . C-6 2.2 Types of connection for DV10,DV30,DV55 . . . C-12 2.3 Types of connection for DV35 . . . C-19 2.4 Types of connection for DV60 . . . C-21 2.5 Types of connection for DZ65 . . . C-27
D Interfaces . . . D-1
1 Comparison of the interfaces . . . D-3 2 RS-232-C, RS-422/485 serial interfaces . . . D-5 2.1 RS-232-C- and RS-422/485 interfaces . . . D-6 2.1.1 RS-422/485 bus. . . D-8
3
3 IEEE 488-78 parallel interface . . . D-9 3.1 IEEE 488-78 . . . D-10 3.1.1 Data lines . . . D-13 3.1.2 Handshake lines . . . D-14 3.1.3 Control lines . . . D-15 3.2 Controller, talker and listener functions . . . D-16 3.3 Addressing . . . D-17 3.4 Service request (SRQ) . . . D-18 3.4.1 Serial poll (SPOLL) . . . D-19 3.4.2 Parallel poll (PPOLL) . . . D-21 3.5 Interface instructions . . . D-22 3.6 Interface functions . . . D-23
E Communication with the DMCplus . . . E-1
1 Connecting the computer to the DMCplus . . . E-3
F Technical data . . . F-1
Technical data DMCplus . . . F-2 Technical data Amplifier plug-in units . . . F-3 Technical data Function cards . . . F-6
G Glossary . . . G-1 H Index . . . H-1
Survey of the chapters
4
Chapter A Introduction
General notes on how to use this manual. A documentation survey informs you on the manuals available for the
DMCplussystem device.
Chapter B
DMCplus complete system
Provides information on the system design and gives technical
background information. In addition, the DMCplus-System
components are described. Chapter C
Channel connection
Introduces you to the types of connection for each amplifier. Chapter D
Interfaces
Description of the interfaces. Informs on the interfaces
installed in the DMCplus and on the essential differences
5
Chapter E
Communication with the DMCplus
Informs on how to connect the DMCplus to your computer.
Chapter F Technical data
Provides the technical data for the complete system. Chapter G
Glossary
In the form of a ”lexicon” the glossary explains the most important technical terms used in this manual.
Chapter H Index
+6% -10% 115V POWER AC 230V NP03 1,0A/T 2,0A/T 230V voltage selection-switch
D
Nr.: +6% -10% 115V 50-60Hz +6% -10%Notes on safety
6Prior to power-up make sure that the mains voltage and current type specified on the type plate match the mains voltage and current type at the site of installation and that the electric circuit used has been fused sufficiently.
Prior to power-up:
D Check the position of the voltage selection-switch on
the DMCplus rear (see figure).
D Select the switch position according to the mains
voltage applied (factory setup: 230V).
D Select and adjust the appropriate mains voltage and
connect the device (230V +6%/-10% or 115V+6%/-10%).
The mains plug may only be connected to an earthed socket (protection class I and II). Before opening the de-vice it must in any case be switched off. Disconnect the mains plug. Do in no case use the cable to disconnect the mains plug. Do not start the device if power cables have suffered damage. If an amplifier channel has been re-moved, a blind plate must be used to cover the slot. Plug-in units may only be operated if installed in the ap-propriate housing. The device complies with the safety re-quirements of DIN EN 61 010- part 1 (VDE 0411-part 1) protection class I.
7
To ensure sufficient EMI-proofness, use the Greenline screening only (see HBM special brochure on the Green-line screening concept, EMI- proof measurement cables, G36.35.0).
Appropriate use
The DMCplus-system with the connected transducers may be used for measurement and directly related control and regulation tasks, only. Any other use is not appropriate. To ensure safe operation, the transducer may only be used according to the specifications given in this manual. When using the transducer, the legal and safety regulations for the respective application must also be observed. The same applies if accessories are used.
General dangers in the case of non-observance of the safety instructions
The DMCplus-system complies with the state of the art and is operationally reliable. If the device is used and operated inappropriately by untrained personnel, residual dangers might develop.
Any person charged with device installation, operation, maintenance or repair must in any case have read and understood the operating manual and the safety
8
Residual dangers
The DMCplus- scope of performance and supply covers part of the measuring-technology, only. The plant
designer/constructor/operator must in addition design, realise and take responsibility for the measuring-system’s safety such that potential residual dangers are minimized. The respective regulations must in any case be observed. Residual dangers regarding the measuring system must be specified explicitly.
After password-protected setups and operations have been carried through, make sure that potentially connected con-trols remain in a safe state until the DMCplus-system switching behaviour has been checked.
In this manual, the below symbols are used to refer to residual dangers:
Symbol: Meaning: Danger for people
This symbol is used to indicate that, if the safety
instructions are not observed, people might suffer grievous bodily harm or death.
Symbol: Meaning: Danger for property
This symbol is used to indicate that, if the safety instructions are not observed, property might suffer
9
Symbol: Meaning: Note
This symbol is used to refer to useful additional information given in the respective section.
Symbol: CE Meaning: CE-mark
The CE-mark is a guarantee by the manufacturer that his product meets the requirements of the relevant EG Directi-ves (see declaration of conformity at the end of these ope-rating instructions).
Safe operation
Do only quit error messages if the reason for the error has been eliminated and there is no more danger.
Reconstruction and modifications
HBM’s express consent is required for modifications regarding the DMCplus-system construction and safety. HBM does not take responsibility for damage resulting from unauthorized modifications.
In particular, repair and soldering works on the boards (replacement of components except for EPROMS) are pro-hibited. If complete componentry is replaced use original HBM components, only.
10
Qualified personnel
Qualified personnel means: personnel familiar with the installation, mounting, start-up and operation of the prod-uct, and trained according to their job.
The device may be used by qualified personnel, only; the technical data and the special safety regulations must in any case be observed. When using the device, the legal and safety regulations for the respective application must also be observed. The same applies if accessories are used.
Introduction
A
Introduction
A-1
1 Survey of documentation . . . A-3 1 .1 How to use this manual . . . A-4
Introduction
Survey of documentation Introduction
1
Survey of documentation
A-3
The product documentation supplied with the DMCplus Digital
amplifier system includes two references: The ”Technical specifications”
contain background knowledge on the whole amplifier system
The manual”Operation with terminal or computer” explains programming and measuring with the
DMCplus via terminal and/or computer
Two additional computer programs for
the DMCplus are available: DMCLabplus and
BEAM-DMCplus.
The instructions for the DMCLabplus-program describe
how to configure the DMCplus using the program, and
explain the types of measurement and representation that are at your disposal.
The BEAM-DMCplus manual describes a comprehensive
applications software.
This file includes the ”Technical specifications” and the manual ”Operation with terminal or computer”.
How to use this manual Introduction
1.1 How to use this manual
A-4
This manual is to introduce you to the DMCplus with all its components. It is intended for both, beginners and the more experienced who already have worked with computers. You have several guidelines at your disposal:
D The table of contents on the first pages of the manual gives
a first impression.
D The chapters are separated by register sheets (flaps). The
contents of a chapter is given at its beginning.
D The header shows the chapter and subchapter you are
currently reading. Example:
Comparison of the interfaces
Interfaces D-3
The footer gives the title of the manual (DMCplusTechnical
specifications, DMCplus Operation with terminal or computer
etc.)
D The page numbers are made up of a capital (according to
the chapters) and the page number. Every chapter starts with page 1.
D The index contains a register that will comfortably guide you
B
DMC
plus
-complete system
DMCplus-complete system B-1 1 System design . . . B-3 1.1 Housing types . . . B-8 1.1.1 Device front . . . B-10 1.1.2 Device rear . . . B-13 1.2 Amplifiers for the DMCplus . . . B-15 1.3 Interfaces . . . B-16 1.4 Instruction set . . . B-17 1.5 Synchronisation . . . B-182 Components of the system device . . . B-19
2.1 Basic components . . . B-21 2.1.1 Power supply / power rack . . . B-21 2.1.2 CP03 Central processing unit . . . B-25 2.1.3 SY01 Control unit . . . B-32 2.2 Amplifiers . . . B-37 2.2.1 DV01 DC-amplifier . . . B-39 2.2.2 DV10, DV30, DV55 DC-and CF-amplifier . . . B-40 2.2.3 DV35 600Hz-CF-amplifier . . . B-41 2.2.4 DV60 Md/n-amplifier . . . B-42 2.3 Function cards . . . B-43 2.3.1 PI01 Digital input/output. . . B-43 2.3.2 AU01 Analogue output card . . . B-49
DMCplus-complete system
1
System design
System design
DMCplus complete system B-3
DMCplus characteristics:
The DMCplus is a digital amplifier system with up to 28 channels (2 channels per amplifier plug-in unit) that is 100% computer-controlled.
The system design is characterised by its bus structure similar to that of a microprocessor system. All amplifier plug-in units and function boards in the DMCplus are connected to theCP03 Central processing unit in parallel via a data and control bus. The individual device plug-in units can be connected as desired. Free slots are also possible.
DMCplus features:
D The system is controlled by a microprocessor. It enables up
to 28 quantities to be measured simultaneously on all channels and converts the analogue measurements into digital signals.
D Digital filtering enables the frequency response for each
channel to be optimally adapted to the measurement task.
D Measuring rates of up to 9600 measurements per second
and per channel make the DMCplus the right solution for the complete range of mechanical measurement problems.
D Its high accuracy and a resolution of max. 20 bits also
enable the DMCplus to be used for precision measurements.
D The integral measurement memory for up to 40.000
measured values (optionally 500.000 measurements) enhances the realtime-capacities of the connected computer.
D The device parameters and the measurements are stored
System design DMCplus complete system
A D Measure Zero Cal. EEPROM
DMC
plus A D n E T ± Σ Measurement output Measurement formatting Measurement memory 40.000 measurements (expandable to 500,000) ± n Σ Averaging (60 . . . 1meas./s) Analogue-to-digital conversion Filtering Averaging (9600meas./s . . . 75meas./s*)Zero balance Sensitivity
balance Taring µ µ µ → GA02 CP03 Central processing unit RS-232-C RS-422/485 n DV . . amplifiers
SY01 IE01 PI01
Ua
IEEE 488-78 Data I/O
AU01 8 8 32 4 Data IN Synchr. Transducer Data OUT
* Meas./s: Measurements per second . . . . . . . . 0 µ DZ65 Impuls B-4
System design
DMCplus complete system B-5
Analogue-to-digital conversion
HBM has developed a special ADC method based on a dual-channel 16-bit-converter. Contrary to conventional methods, the HBM converter does not restrict the resolution and converts without loss of information over the whole bandwidth even with highly dynamic processes.
A prerequisite for the HBM ADC-method are very short internal signal propagation times which could only be achieved by an IC chip, developed by HBM in gate-array technology. The high-resolution digitisation permits an uncritical selection of the amplifier’s input sensitivity and avoids restrictions and
overmodulations.
The signal transmitted from the transducer is boosted in the amplifier and then digitised in the whole signal range without loss of information. Each amplifier channel has been equipped with such a component.
Measurement conditioning
If a channel has been zero-balanced and tared before the actual measurement, the zero-balance and tare value will be added to the current measurement, thus producing a
conditioned value that is available for output on the interface. To enhance the measurement accuracy, a calibration can be started by an external command thus mathematically
compensating all internal deviations. The measurements are accessible to the computer without reprocessing.
System design DMCplus complete system
B-6
Data transmission rates
The amplifiers supply measurements at data rates between 75 and 9600measurements/s. With data transmission rates
smaller than 9600measurements/s, measurements are averaged in the gate-array. With even smaller data
transmission rates (between 1 and 60measurements/s, the CPU determines an additional average value. Due to this averaging, resolutions of up to 20 bits are obtained. For measurement acquisition, 40 000 measurements (standard) are stored in an intermediate memory and
measurements from up to 10 channels are transmitted via the IEEE interface at measuring rates of 9600 measurements per second and stored externally.
Therefore, the DMCplus enables a total of almost 100 000 measurements per second to be transmitted.
System design
DMCplus complete system B-7
DV10 DV01 DV35 PI01 AU01 µP 68 000 RS-232 RS-422/485 DC A B 8 / 16 / 24 / 32 1...4 DV55 B A B A B A DV30 Synchronisation DMCplus Parallel interface IEEE488 IE01 Pt100 SY01 CP03 B A DV60 Torque Frequenz/ Speed Transducer and Signal sources Additional memory B A Impulse, Frequenzen, PCMCIA-Slot with 170MB-hard disk Measurement memory Measurement memory Thermoc. S/G S/G Resistors Inductive Analogue outputs 8 bits input
Amplifier plug-in units
Function cards
Basic components
System design
DMCplus complete Housing types
1.1 Housing types
B-8
The DMCplus Digital amplifier system is available in three versions:
D The narrowdesktop housing can be equipped with max. 12
amplifier channels (corresponds to 6 slots),
D The wider version can be equipped with max. 28 channels
(corresponds to 14 slots).
D Devices in plug-in rack modules are available for
integration in 19” cases.
T1 desktop housing with T2 desktop housing with 19” E1 or E2 19” plug-in rack
modules 6 slots: 14 + 1 slots: with 6 or 14 + 1 slots:
(255 x 171 x 367) (458 x 171 x 367) (483 x 132.5 x 320*)
w x h x d in mm
System design
DMCplus complete system Housing types B-9
Due to the compact construction in SMD technique, two
amplifier channels have been realised per slot in the DMCplus thus enabling each device to be equipped with a large quantity of channels. Designation Maximum no. of amplifier channels1) T1 desktop housing T2 desktop housing 19” plug-in rack module 110/230V mains operation Battery operation 11...30V = DMC91T1 12 X X DMC91E1 12 X X DMC91T1B 12 X X X DMC91E1B 12 X X X DMC91T2 28 X X DMC91E2 28 X X
1) If function boards are used, 2 amplifier channels each are omitted. Each free slot is covered with a blank plate.
Partially equipped DMCplus can be retrofitted with further plug-in units.
System design
DMCplus complete Device front
1.1.1 Device front
B-10
Fig. B 3: Front view of the 12-channel desktop housing
System design
DMCplus complete system Device front B-11
After power-up, the device performs a lamp test, i.e. all LEDs will light up for a short time (approx.100ms).
In operating mode, the LEDs signal the following: WAITING FOR COMMAND
The DMCplus waits for an instruction.
BUSY
The device is processing an instruction.
TRANSFER
Requested data is ready for transmission.
WAITING FOR TRIGGER
The DMCplus is waiting for the trigger event. Status-Signal RDY
MEASURE
The measurement is running. Status-Signal MSR
VALUE OVERFLOW
Overflow of the internal buther. or
System design
DMCplus complete Device front
B-12
SYSTEM REQUEST
System error. The LED is on until the error has been queried with the SST? instruction.
COMMAND ERROR
A wrong instruction or wrong parameters have been entered. The LED is on until the error has been queried with the *ESR? or EST? instruction.
Additional data output of the RDY, MSR and ERR status signals is possible via the SY01 control unit on the I/O socket.
System design
DMCplus complete system Device rear
1.1.2 Device rear
B-13
Fig. B 4: Rear views of different DMC devices, slot/channel numbers and special features with slot assignment
NP 03* 1 2 3 4 5 6 BL01 7 8 9 10 11 12 13 14 15 1 2 3 4 27 28 No Slot
Slot 15 for IE01 only Channel numbers NP 03* 1 2 3 4 5 6 1 2 3 4 5 7 6 8 9 11 10 12
Slot 6: for IE01, DV... or other func-tion board as desired
Parallel-I/O
Synchronisation, as from the se-cond device RS-232-Computer connection RS-422/485-Computer connection Slot numbers DMC91T1 DMC91T1B DMC91T2 DMC91E2 DMC91E1 Channel numbers SY01 CP03 SY01 CP03
* Other power packs also possible, see page B-21
Channel numbers
Channel numbers Slot numbers
System design
DMCplus complete Device rear
B-14
Fig. B 5: Rear view of a 12-channel desktop housing (battery version), equipped with the following plug-in units:
one DV55 amplifier plug-in unit DV55 Slot 1 channels 1 + 2
one AU01 Analogue-output board AU01 Slot 2 channels 3 + 4
one DV60 Torque amplifier DV60 Slot 3 + 4 channels 5 + 6, (7 + 8) CP 03 SY 01 DV 55 IE 01 CHANNEL B CHANNEL A IEEE 488-78 I / O S Y N RESET RS-232-C V.24 RS 422/485 Bu1 Bu2 RUN ERRSTOP 115V POWER AC 230V 230V +6% –10% 115V 50–60Hz +6% –10% +6% –10% BU1 BU2 BU3 BU4 AU 01 6.3 A/T •BY<12V •BY<24V POWER DC 11...30V 0V Bu11 Bu12 NP04 QUICK SAVE L R – – 12V = BUFFER FUNCTION 24V = BATT. FUNCTION ONLY 1,0A/T 2,0A/T
D
Nr.: 1 2 3 4 5 6 Basic device PARALLEL I /O UEXTERN PI 01 INPUT MD CHANNEL A A F B G E C D A F B G E C D INPUT MD CHANNEL A DV60System design
DMCplus complete system Amplifiers for the DMCplus
1.2 Amplifiers for the DMCplus
B-15
The amplifier plug-in units are autonomous components that acquire measurement signals from the transducers, digitise them and make them available to be queried by the CP03. The selected bus structure enables different amplifier plug-in units and function boards to be operated in any sequence in one DMCplus.
The following transducers and signal sources can be connected to the DMCplus amplifier plug-in units:
Amplifier Transducer
DV01 Thermocouples J, T, K, S, VMA3253 cold junction reference,
voltage sources, current sources
DV10 S/G in half and full bridge circuits, potentiometers, voltage sources
DV30 S/G in half and full bridge circuits, potentiometers, voltage sources
DV35 PT100 (RTD), resistors, single S/G, voltage sources
DV55 S/G in half and full bridge circuits, potentiometers, inductive transducers, voltage sources
DV60 HBM-Torque-Transducers of family T30FN...T36FN;
Measuring transmitter MBL40; Inkremental transducers; Frequency-sources
System design
DMCplus complete Operation/interfaces
1.3 Interfaces
B-16
The DMCplus is controlled by a computer or terminal. There are no controls for manual operation.
For operation via computer or terminal, there are the following standard interfaces:
RS-232-C (V.24) and RS-422/485
With the IE01 interface board an IEEE 488-78-interface
DMCplus complete system System design Instruction set
1.4 Instruction set
B-17
The instruction set included in the device’s firmware permits communication with the computer.
The instruction set contains codes that are easy to learn; via the interface these codes together with the setup parameters are transmitted from the computer to the DMCplus.
Thus, you can easily set device parameters and start measurements. These instructions are integrated into a measurement program and permit reliable control of the measurements made with the DMCplus.
For a description of the instructions, please refer to the manual ”Operation with computer or terminal”.
System
DMCplus complete Synchronisation
1.5 Synchronisation
Master device Slave device Single device (default)
2 3 2 3 2 3 1st device 2nd device and further 12 3 SY 01 I / O SY 01 I / O SY 01 S Y N I / O
1st device 2nd device 3rd device
S Y N S Y N F1 F2 F1 F2 C/W F1 F2 12 3 12 3 F1 F2 C/W F1 F2 C/W F1 F2 B-18
Synchronising the amplifiers in one device:
D Set DIP switches 2 and 3 on the SY01 Control unit to ’Single
device’ position.
Synchronising 2 and more devices:
With more than one DMCplus , the individual devices must be synchronised via the SYN plug connectors. Use Kab253 cable for synchronisation of two or more devices according to the figure.
D Use Kab253 cable to connect two devices via the SYN plugs
on the SY01 plug-in units.
D Use DIP switches 2 and 3 on the SY01 Control units to set
one device to master and the others to slave.
D Use the SYN instruction to synchronise the individual
Components of the system device DMCplus complete system
2
Components of the system device
Components of the system device DMCplus complete
B-20
The following components are included in the DMCplus basic device:
D Desktop housing or plug-in rack module
D Power supply / power pack
D CP03 Central processing unit
D SY01 Control unit
Depending on the measurement task, the DMCplus can be completed with:
D DV... Amplifier plug-in units
D PI01 Digital in/output board
D AU01 Analogue output board
D IE01 Interface board
D PC01 PCMCIA hard disk
In the DMCplus, the amplifier plug-in units and function boards are connected in parallel to the CP03 Central processing unit by a bus system.
The amplifier plug-in units are autonomous components that acquire measurement signals from the transducers, digitise them and make them available to be queried by the CP03.
Components of the system device
DMCplus complete system Power supply
2.1 Basic components
2.1.1 Power supply/power pack
NT010 POWER AC
D
Nr.: 230V 115V 50–60Hz Fan B-21The NT010 Power pack has been designed for 230V (115V) connection. The unit is automatically adapted to a 115V/230V mains.
Tolerances: 230V –25%,+15%
Components of the system device
DMCplus complete Power supply
B-22
The NP03 Power pack is built in as standard; it has been designed for 230V connection and for a maximum of 12 channels.
If you have to connect the DMCplus to a mains voltage
differing from 230V, the device can be switched to 115V mains voltage (voltage-selection switch). In these cases, please remember to exchange the fuses:
115V mains voltage: 2.0A/T 230V mains voltage: 1.0A/T)
In general, the DMCplus is single-pole protected.
To exchange the fine-wire fuse(s) after blowing or to change type:
D Pull forward the fuse support beside the mains connection:
Press here and pull forward
D Exchange the fuse(s).
+6% -10% 115V POWER AC 230V NP03 230V Voltage-selection switch Rocker switch (connects operating-voltage zero to protective
Fuses Mains connection
D
Nr.: Housing earth +6% -10% +6% -10% 115V 50-60Hz 1,0A/T 2,0A/T+6% -10% 115V POWER AC 230V
D
Nr.: 6.3 A/T •BY<12V •BY<24V POWER DC 11...30V 0V Bu11 Bu12 NP04 QUICK SAVE L R -12V = BUFFER FUNCTION 24V = BATT. FUNCTION ONLY Battery connection Battery-monitoring function 230V +6%-10% +6% -10% 115V 50-60Hz 1,0A/T 2,0A/TComponents of the system device
DMCplus complete system Power supply B-23
The NP04 Power pack has been designed for mains connection, and in addition for connection of a 12V or 24V battery thus enabling the DMCplus to be operated
independent of a mains unit. The NP04 Power pack has been designed for connection of a maximum of 12 channels to the DMCplus .
If you want to connect the DMCplus to a mains voltage
differing from 230V, the device can be switched to 115V mains voltage (voltage-selection switch). In these cases, please remember to exchange the fuses:
115V mains voltage: 2.0A/T; 230V mains voltage: 1.0A/T.
Fuse exchange, see preceding page.
Battery mode:
For operation with a battery, you have to use the sockets Bu11 and Bu12.
D 12V-BUFFER-FUNCTION
With a 12V battery connected, the mains connection can be used contemporaneously. In the case of a mains failure, the battery functions similar to an uninterruptible power supply (UPS). Contrary to real UPS-mode the battery will not be charged automatically.
D 24V-BATT. FUNCTION ONLY
With a 24V battery connected, the device may be operated only via this battery. Even if the device has been connected to the mains, the device will only be supplied by the battery.
+6% -10% 115V POWER AC 230V
D
Nr.: 6.3 A/T •BY<12V •BY<24V POWER DC 11...30V 0V Bu11 Bu12 NP04 QUICK SAVE L R -12V = BUFFER FUNCTION 24V = BATT. FUNCTION ONLY Battery connection Battery-monitoring function 230V +6%-10% +6% -10% 115V 50-60Hz 1,0A/T 2,0A/TComponent of the system device
DMCplus complete Power supply
B-24
D QUICK-SAVE
Depending on the type of battery connected, use a switch to set the battery-monitoring function (Quick Save) to BY <12V or BY <24V. Thus selecting the battery limiting-voltage up to which the device will function correctly:
Switch position: Battery limiting-voltage
BY<12V 10.5V ±0.2V
BY<24V 21V ±0.4V
The battery limiting-voltage is fallen below:
D on the CP03, the yellow LED (CP03 in ERR-state) and the
green LED (RUN) light up. The DMCplus can no longer be accessed by the computer.
D On the DMCplus front panel, the yellow LED (SYSTEM
REQUEST) lights up. This signals an error.
With an upward surge in the supply voltage (battery or mains), the DMCplus will immediately be ready for operation.
However, measurement functions have to be restarted. After a battery replacement due to discharged battery, the DMCplus behaves as after ’Mains on’.
The upper 6.3A/T L fine-wire fuse is used for battery
Components of the system device
DMCplus complete system CP03 Central processing unit
CP 03 RS 422/485 Bu2 RS-232-C V.24 Bu1
RUN ERR STOP RESET
2.1.2 Central processing unit CP03
B-25
The CP03 Central processing unit manages the DMCplus amplifiers internally and controls communication with a computer via serial and parallel interfaces externally. The central processing unit has been realised using a microprocessor (68 000) with 12.5MHz clock. It provides 256KB ROM as program memory and 128KB RAM
(battery-buffered) as data memory. 16KB are used as memory for 10.000 measured values. Another 30.000 measured values are stored in the SY01 Control unit (standard version).
CP03 components
D Reset key
Pressing the Reset key has the following effects:
DIP switch 1 on SY01 Control unit set to:
Upon pressing the Reset key:
C (cold start)
Internal program startup. The amplifier setup and program parameters are reset to the factory default-setup.
W (warm start)
Internal program startup. The amplifier setup and program parameters selected individually will be maintained.
Components of the system device
DMCplus complete CP03 Central processing unit
5 1 9 6 RS 422/485 Bu2 RS-232-C V.24 Bu1
RUN ERR STOP RESET
CP 03
B-26
D Serial interface connections
The interfaces may only be operated alternatively.
Assignment of socket Bu1: RS-232-C- (V.24) interface
(suits point-to-point connections of up to 20m)
Pin Assignment 1 RTS 2 TD 3 RD 4 Unassigned 5 CTS 6 DSR 7 Ground 8 Unassigned 9 +5V Socket
hou-sing Protective ground
The DMCplus is data communication equipment (DCE), i.e. pin 2 is a data input and pin 3 a data output port.
Pins 1 and 5 enable real hardware handshaking with the computer to be carried out.
Components of the system device
DMCplus complete system CP03 Central B-27
The default values (factory setup) of the RS-232-C interface correspond to the setup after a cold start. They are as follows: Word length: 8 bits
Stop bits: 1
Parity: Even
Baud rate: 9600 baud
You may also use the BDR instruction (see manual ”operation with computer or terminal”) to adjust the interface as required.
Components of the system device
DMCplus complete CP03 Central processing unit
5 1 9 6 RS 422485 Bu2 RS-232-C V.24 Bu1
RUN ERR STOP RESET
CP 03
B-28
Assignment of socket Bu2: RS-422/485 interface (suits
point-to-point connections over longer distances of up to 1200m and bus operation)
Pin Assignment 1 +5V 2 Ground 3 TxD-P(B) transmitted data (+) 4 RxD-P(B’) received data (+) 5 Ground 6 Unassigned 7 Ground
8 TxD-N (A) transmitted data (–) 9 RxD-N (A’) received data(–) Socket housing Protective ground
The default values (factory setup) after a cold start are as follows:
Word length: 8 bits
Stop bits: 1
Parity: Even
Baud rate: 9600 baud
Device address: 31
You may also use the BDR and ADR instructions (see manual ”operation with computer or terminal”) to adjust the interface as required.
Component of the system device
DMCplus complete system CP03 Central
Red Yellow Green Power–up/Startup B-29 D Light-emitting diodes
The three light-emitting diodes below socket Bu2 indicate the device’s operating state.
After power-up, the LEDs STOP (red)
ERR (yellow) RUN (green)
will light up in sequence. With a successful system startup, the green LED will be light continuously.
The light-emitting diodes have the following meaning:
STOP (red)
The CPU is in Halt state. Will light up for a short time after power-up or as long as the Reset key is being pressed. ERR (yellow)
Lights up immediately after the red LED has gone out. The CPU carries out a function test (approx. 100ms).
RUN (green)
The LED will be on continuously after the yellow LED has gone out. The function test has been successful, the device is ready for operation.
Components of the system device
DMCplus complete CP03 Central processing unit
B-30
What is to be done, if the LEDs do not function as described above?
D The red LED (STOP) does not go out after power-up,
or
the red LED lights up during operation:
The device is defective, a system error has occurred. Contact your HBM representative or send the device to the factory.
D The yellow LED (ERR) lights up after startup or during
operation:
A program error has occurred. First, carry out a warm start: Press Reset key
If the LED will light up again, carry out a cold start:
Set DIP switch 1 on the SY01 Control unit to C and press Reset key.
Caution:
After a cold start, the amplifier setup and program parameters will have been reset to the factory default setup.
Remember:
Components of the system device
DMCplus complete system CP03 Central processing unit B-31
If the yellow LED still does not go out, contact your HBM representative or send the device to the factory.
D After reset to W, the green and yellow LED (RUN and ERR)
on the CP03 will both light up:
Due to the supply-voltage loss a ’Mains failure’ has occured. Please ensure an adequate voltage supply.
Important:
The device has been equipped with a lithium battery to protect the data memory against power failures. The battery’s typical service life is approx. 5 years. On the internal plug strip, there is a red label indicating the date for replacement.
Components of the system device
DMCplus complete SY01 Control unit
2.1.3 SY01 Control unit
0 1 C W F1 F2 S Y N I / O DIP switch factory-setup SY 01 12 3 ON Switch 1
Cold start C * Warm start W Switches 2 and 3
Single device (default) Master device Slave device 2
3
1
F1 F2
A RESET on the CP03 or via instruction is required after changing the positions of the 2 DIP switches F1 and F2.
B-32
The SY01 Control unit clocks and synchronises the amplifiers. The SYN plug connector enables several devices to be
synchronised (see chapter B 1.5).
Components on the SY01
D DIP switch
Use the triple DIP switch to select cold/warm start and
master / slave setup.
Switch positions
* A cold start should only be made, if the amplifier setup and program parameters are to be reset to the factory default setup, or if the device
Components of the system device
DMCplus complete system SY01 Control unit
0 1 C W F1 F2 S Y N I / O DIP switch factory setup 1 13 25 14 12 3 ON SY 01 B-33 D I / O socket
Eight digital inputs and outputs (8bit input/8bit output), control signals and status reports are available at this socket. The connections are not electrically separated.
Assignment of the I/O socket:
Pin Assignment 1 1kΩ internally to +5V 2 Ground 3 Input 6 4 Input 4 5 Input 2 6 Input 0 7 Ground 8 MSR (Measure)* 9 Ground 10 Output 6 11 Output 4 12 Output 2 13 Output 0
14 Start/Stop (external trigger for measurement run)
15 Input 7
16 Input 5
17 Input 3
18 Input 1
19 COMMON (common diode connection of the outputs)
20 ERR (Command Error)*
21 RDY (Waiting for Trigger)*
22 Output 7
23 Output 5
24 Output 3
START +5V +5V 75k 10k max. +50V 14 Ground 68p D D
Components of the system device
DMCplus complete SY01 Control unit
+5V +5V 75k 10k max. +50V Input 0...7 Ground 68p D D B-34
Fig. B 7: Start signal on the I/O socket
Use the START signal at pin 14 of the I/O socket to start or terminate a measurement.
Ground ERR MSR RDY Common 2.7k 7.2k 3k max.50V max.100mA
Components of the system device
DMCplus complete system SY01 Control unit
Ground Common 2.7k 7.2k 3k max.50V Output 0...7 max. 100mA B-35
Fig. B 9: Status signal on the I/O socket
Components of the system device
DMCplus complete SY01 Control unit
S Y N I / O DIP switch factory setup 1 5 9 6 SY 01 0 1 C W F1 F2 12 3 ON B-36
D SYN plug connector
With more complex measurement systems, the DMCplus must be synchronized via this plug connector.
Assignment of the SYN plug connector:
Pin Assignment 1 SYRES 2 SYCLK 3 SYSTART 4 SYMWRES 5 Unassigned 6 1kΩ internally to +5V 7 GND 8 SYRDY 9 Unassigned Plug
housing Protective earth
Note:
The device has been equipped with a lithium battery to protect the data memory against power failures. The battery’s typical service life is approx. 5 years; with a memory expansion to 500.000 measured values, the battery life is reduced to about 2 years.
On the internal plug strip, there is a red label indicating the date for replacement.
Components
DMCplus complete system Amplifiers
2.2 Amplifiers
B-37
The amplifier plug-in units are autonomous components that acquire measurement signals from the transducers, digitise them and make them available to be queried by the CP03 Central processing unit.
They have been designed for different transducer types and are therefore differing with regard to their construction, e.g.:
D for DC-voltage or carrier-frequency operation,
D with or without transducer supply,
Amplifier type DV01 DV10 DV30 DV35 DV55 DV60 Transducer supply – DC CF 600Hz CF 600Hz CF 4.8kHz CF 19.2kHz Single strain gauge in
3-wire circuit
x x x
Single strain gauge in 4-wire circuit x S/G half bridge x x x S/G full bridge x x x Potentiometers x x x Ind.-half bridge x Ind.-full bridge x PT100, Resistors x
Measuring converter (e.g. PE200) x Thermocouples, Cold junction reference x Voltage sources x x x x x Current sources x Torque transducers x
Components of the system device
DMCplus complete SY01 Control unit
GREEN ACTIVE RED OVER-FLOW CHANNEL A DV 01 B-38
D with different transmission characteristics.
Each amplifier plug-in unit has been designed according to the dual-channel principle using two 15-pin input sockets. Above each of them, there is one LED (two-colour LED) indicating the operating mode.
– Explanation of the LED colours during device start-up:
RED: Amplifier addressed (about 100ms)
GREEN: Functional check (about 100ms)
OFF: Amplifier synchronisation (about 3s)
– Explanation of the LED colours after device start-up:
GREEN: Amplifier ACTIVE and in running order.
OFF: Amplifier not active, zero or calibration signal
switched on, synchronisation missing with device set to SLAVE (see SYN instruction).
RED: Transducer missing or not suitable, transducer
not connected correctly, wrong amplifier
programming with regard to the transducer (see ASA instruction), measuring range OVERFLOW.
Components
DMCplus complete system Amplifiers DV01
2.2.1 DV01 DC amplifier
CHANNEL B GREEN ACTIVE RED OVER-FLOW CHANNEL A DV 01 1 8 9 15 GREEN ACTIVE RED OVER-FLOW Connection diagram, see chapter C 2.1 B-39 DTransducer-connection socketsThermocouples, cold junction reference, DC-voltage
orDC-current sources for channel A and B are connected to these sockets. They both have the same assignment.
Assignment of the transducer-connection socket:
Pin Assignment
1 Screen/Protective earth 2 +16V/Imax≤ 50 mA; Ri = 100Ω
3 –16V/Imax≤ 50 mA; Ri = 100Ω
4 Ground 5 +Ie 6 –Ie 7 Unassigned 8 +Ue 9 PROM SDA 10 PROM SCL 11 Ground 12 Ie (VMA) 13 Ie (VMA) 14 Unassigned 15 –Ue Socket
housing Screen/Protective earth
D Light-emitting diodes
The light-emitting diodes indicate the operating state of the appertaining channel (see chapter 2.2 Amplifiers).
CHANNEL B GREEN ACTIVE RED OVER-FLOW CHANNEL A DV 1 8 9 15 GREEN ACTIVE RED OVER-FLOW Components
DMCplus complete Amplifiers DV30
2.2.2 DV10, DV30,DV55600Hz-CF amplifier
Connection diagram see chapter C 2.2 B-40
D Transducer-connection sockets for Channel A and B
Strain gauges in half and full bridge circuit, potentiometers and DC-voltage sources for channel A and B are connected to these sockets. The DV55 is also ..for inductive transducers in half and full bridge circuit. They both have the same
assignment.
Assignment of the transducer-connection socket:
Pin Assignment
1 Screen/Protective earth 2 +16V/Imax≤ 50 mA; Ri = 100Ω 3 –16V/Imax≤ 50 mA; Ri = 100Ω
4 Ground
5 Bridge excitation voltage 2 6 Bridge excitation voltage 3
7 Unassigned
8 Measuring signal 1 (+Ue)
9 PROM SDA 10 PROM SCL 11 Ground 12 Sensor line 2’ 13 Sensor line 3’ 14 Unassigned
15 Measuring signal 4 (–Ue)
Socket
housing Screen/Protective earth
CHANNEL B GREEN ACTIVE RED OVER-FLOW CHANNEL A DV 35 1 8 9 15 GREEN ACTIVE RED OVER-FLOW Components
DMCplus complete system Amplifiers DV35
2.2.3 DV35 600Hz-CF amplifier
Connection diagram see chapter C 2.3
B-41
DTransducer-connection sockets for Channel A and B
Pt100 (RTD) resistance thermometers, resistors, single strain gauges and DC-voltage sources for channel A and B are connected to these sockets. induThey both have the same assignment.
Assignment of the transducer-connection socket:
Pin Assignment
1 Screen/Protective earth 2 +16V/Imax≤ 50 mA; Ri = 100Ω 3 –16V/Imax≤ 50 mA; Ri = 100Ω
4 Ground
5 Current supply 2 6 Current supply3
7 Unassigned
8 DC measuring signal (+Ue)
9 PROM SDA 10 PROM SCL 11 Ground 12 CF measuring signal 13 CF measuring signal 14 Unassigned
15 DC measuring signal (–Ue) Socket
housing Screen/Protective earth
D Light-emitting diodes
The light-emitting diodes indicate the operating state of the appertaining channel (see chapter 2.2 Amplifiers).
Components
DMCplus complete Amplifiers DV60
2.2.4 DV60 MD-/n-amplifier
INPUT MD GREEN ACTIVE RED OVERFLOW GREEN ACTIVE RED OVERFLOW Slots required: CHANNEL A INPUT N CHANNEL B A F B G E C D A F B G E C D DV 60 Connection diagram see pages C 2.4 B-42D Transducer-connection sockets for Channel A and B
The following HBM devices can be connected to these sockets: T30FN...T36FN torque transducers, the MBL40 non-contacting measurement transmitter and incremental and frequency transducers.
Channel A Torque/frequency
Pin Assignment
A Ground (Operating-voltage zero) B -15V preamplifier supply-voltage C +15V preamplifier supply-voltage
D Torque signal
(alternatively: frequency signal-source) E Screen/protective earth
F 55Vss/0.8A/19.2kHz rotor supply-voltage G Ground for rotor supply-voltage Socket
housing Screen/protective earth
Channel B Speed/frequency
Pin Assignment
A Ground (Operating-voltage zero)
B Not assigned
C Not assigned
D Speed/frequency signal 2 (is shifted by π/2 against speed signal 1) or signal for the direction of rotation E Screen/protective earth
F Not assigned
G Speed/frequency signal 1 Socket
Function boards
DMCplus complete system PI01 Digital input/output board
2.3 Function boards
2.3.1 PI01 Digital in/output board
PARALLEL I / O
UEXTERN
PI 01
B-43
The digital input/output board enables digital and analogue signals to be recorded simultaneously.
Components on the PI01
D Memory-aid panel and I / O modules
The upper field on the PI01 boards front panel functions as a sort of memory aid for the assignment of the four I/O module ports with pin or output functions.
The factory setup has been marked with circles.
Fig. B 11: Factory setup of the inputs/outputs on the PI01
I/O module 4 3 2 1 PARALLEL I / O Port Channel 2 1 2 1 B A PI 01
Function boards
DMCplus complete PI01 Digital input/output board
B-44
Determination of the I/O-module functions
Four I/O modules with 8bits each are plugged onto the PI01 input/output board; the modules have been marked with direction arrows. Depending on the plug-in direction, the boards function as input or output modules, thus enabling any configuration desired to be arranged. If you have chosen an input/output configuration differing from the factory set up, you can document the new setup by marking it on the memory-aid panel.
Fig. B 12: Factory setup (configuration) of the I/O modules O I O I O I O I I/O Modul 4 3 2 1 Port 2 Port 1 Port 2 Port 1 Channel A 2 x 8 bits Inputs Channel B 2 x 8 bits Outputs
Function boards
DMCplus complete system PI01 Digital input/output board
PARALLEL I / O
UEXTERN
PI 01
B-45
D 50-pin plug and LED UEXTERN
Use this plug for output or reading of digital data (max. 32
bits). The supply voltage (UEXTERN) for the output or reading of
data must be supplied externally (+5 bis 30V).
With this voltage applied, the green LED below the 50-pin plug will light up.
The assignment of the 50-pin plug is given on the following pages.
Note:
Plug counterpart:
50-pin D-subminiature socket with metal cap (e.g. Cannon company).
PARALLEL I / O UEXTERN 1 17 33 18 34 50 PI 01 Function boards
DMCplus complete PI01 Digital input/output board
B-46
Assignment of the 50-pin plug:
Pin Assignment 5 9 13 17 21 25 0V 29 33 38 42 46 50 1 18 UExtern 34 22 Strobe 2 26 Strobe 1 30 Strobe 0
Comment: +UExtern = External supply voltage (+5 to 30V)
Strobe Channel/Port
0 A/1
1 A/2
PARALLEL I / O UEXTERN 1 17 33 18 34 50 PI 01 Function boards
DMCplus complete system PI01 Digital input/output board B-47
Assignment of the 50-pin plug:
Channel A Channel B
Port Bit Pin I/O module
Port Bit Pin I/O module 0 14 0 6 1 15 1 7 2 16 2 8 1 3 32 1 1 3 24 3 4 31 4 33 5 47 5 39 6 48 6 40 7 49 7 41 0 10 0 2 1 11 1 3 2 12 2 4 2 3 28 2 2 3 20 4 4 27 4 19 5 43 5 35 6 44 6 36 7 45 7 37
Function boards
DMCplus complete PI01 Digital input/output board
B-48
The 32 data lines are programmable as inputs or outputs in groups of 8 bits (see figure).
The electrical separation of the data lines from the internal electronics requires an external supply voltage of +5V ... +30V. The input signals are charged with approx. 0.5mA over the whole input-voltage range (+5V ... +30V). A Strobe signal (positive edge) is required for the available data to be
accepted. The outputs have been equipped with out put stage modules including an electrical current-limitation that limits the potential output current to approx. 20mA. The maximum
output voltage is 2V less than UEXTERNAL
UEXTERNAL +5 . . .+30V UEXTERNAL Outputs Inputs 0V
B
U
S
Iconst. = 5mA Uextern . . . .. . . .
Function boards
DMCplus complete system AU01 Analogue output board
2.3.2 AU01 Analogue output board
ANALOG OUTPUT BU1 BU2 BU3 BU4 AU 01 B-49
The AU01 Analogue output board enables digital
measurement values resulting from the amplifier or numerical values resulting from the computer to be converted into analogue signals. For the conversion of digital measurement values, this board has to be placed directly beside an amplifier plug-in unit or, as shown in fig. B 14, between two amplifier plug-in units.
Use the CAU instruction (see ”Operation with terminal or computer”) to allocate the digital amplifier outputs internally to the digital-to-analogue converters, i.e. to the analogue outputs. External wiring is not required. Also use the DAU instruction (see ”Operation with terminal or computer”) to adjust voltage levels between –10V ... +10V at the analogue outputs.
Fig. B 14: Allocation of the amplifier channels to the analogue outputs on
the AU01 AU 01 BU1 BU2 BU3 BU4 DVxx DVxx
Function boards
DMCplus complete IE01 Interface board
A1 A2 A3 A4 A5 S / C DU R ON 1 2 3 4 56 78
2.3.3 IE01 Interface board
IEEE 488-78 A1 A2 A3 A4 A5 12 3 4 5 6 7 8 0 1 S C DU R IE 01 ON B-50
This interface board extands the DMCplus by a parallel interface (IEEE-488).
The maximum data transmission rate is 400KB/s or 100,000 measurement values/s.
Components on the IE01
D DIP switch
Use the DIP switch to select from the following setups:
C = Controller
S = Slave
DU = Device Unaddressable
R = Reserve
A1...A5 = Device addresses
These setups only refer to the IEEE interface. Switch positions:
Device S/C DU R
Slave 1 OFF OFF X3
Controller 2 ON OFF X3
Device Unaddressable
X3 ON X3
1 Factory setup 2 Not yet supported
Function boards
DMCplus complete system IE01 Interface board
IEEE 488-78 A1 A2 A3 A4 A5 ON 0 1 S C DU R IE 01 12 3 4 5 67 8 B-51 Address setting: Addr. A1 A2 A3 A4 A5 Addr. A1 A2 A3 A4 A5
0 OFF OFF OFF OFF OFF 16 ON ON ON ON OFF 1 ON OFF OFF OFF OFF 17 ON OFF OFF OFF ON 2 OFF ON OFF OFF OFF 18 OFF ON OFF OFF ON 3 ON ON OFF OFF OFF 19 ON ON OFF OFF ON 41) OFF OFF ON OFF OFF 20 OFF OFF ON OFF ON
5 ON OFF ON OFF OFF 21 ON OFF ON OFF ON 6 OFF ON ON OFF OFF 22 OFF ON ON OFF ON
7 ON ON ON OFF OFF 23 ON ON ON OFF ON
8 OFF OFF OFF ON OFF 24 OFF OFF OFF ON ON 9 ON OFF OFF ON OFF 25 ON OFF OFF ON ON 10 OFF ON OFF ON OFF 26 OFF ON OFF ON ON
11 ON ON OFF ON OFF 27 ON ON OFF ON ON
12 OFF OFF ON ON OFF 28 OFF OFF ON ON ON
13 ON OFF ON ON OFF 29 ON OFF ON ON ON
14 OFF ON ON ON OFF 30 OFF ON ON ON ON
15 OFF OFF OFF OFF OFF 31 – – – – –
Function boards
DMCplus complete IE01 Interface board
IEEE 488-78 A1 A2 A3 A4 A5 ON 0 1 S C DU R IE 01 12 3 4 5 67 8 24 12 13 1 B-52
Assignment IEEE 488-78 interface
(suitable for BUS operation 2...20m)
Pin Assignment 1 DIO1 2 DIO2 3 DIO3 4 DIO4 5 EOI 6 DAV 7 NRFD 8 NDAC 9 IFC 10 SRQ 11 ATN 12 Screen 13 DIO5 14 DIO6 15 DIO7 16 DIO8 17 REN 18 Ground 6 19 Ground 7 20 Ground 8 21 Ground 9 22 Ground 10 23 Ground 11 24 Ground
Function boards
DMCplus complete system Digital counter board
CHANNEL B GREEN ACTIVE RED OVER-FLOW CHANNEL A DZ 65 1 8 9 15 GREEN ACTIVE RED OVER-FLOW
2.3.4 DZ65 Digital counter board
Connection diagram see chapter C 2.5
B-53
D Transducer-connection sockets for Channel A and B
Measurement transducers generating and transmitting digital signals can be connected to these sockets such as, incremen-tal and pulse transmitters whose frequencies are to be deter-mined, whose period length is to be measured or whose pul-ses are to be counted. Both sockets have the same assign-ment.
Assignment of the transducer-connection socket:
Pin Assignment Function 1)
1 Protective earth Cable screen 2 +15V Current supply for transducer 3 –15V Current supply for transducer
4 Ground Measuring ground
5 IN2+ Counter input 2+/counter-direction input 6 IN2– Counter input 2+/counter-direction input
7 Not assigned no
8 IN1+ Counter input 1+
9 OUT 1 Counter-control output 1 10 +5V Current supply for transducer
11 Ground Measuring ground
12 IN3+ Counter-lock input/ reset input 13 IN3– Counter-lock input/ reset input 14 OUT2 Counter-control output 2
15 IN1– Counter input 1–
Socket housing Protective earth Cable screen
1) See interface description
Function boards
DMCplus complete system Digital counter board
+2.5 +2.5 +2.5 +15V –15V +5 100 Si OUT 1, OUT 2 Transducer supply Carry to channel B Channel A IN1 IN2 IN3 + – + – + –
Schematic circuit diagram
Counter and control
DMCplus-bus
0V
Transducer supply
B-54
The digital counter board enables pulses to be counted, period lengths or frequencies to be measured and acquired isochro-nously with the measurements resulting from the other chan-nels. There are two separate counter channels A and B. If channel A operates in the preset-counter mode, channel B can be used as carry counter. There are no switches on the board; all setups required for transducer adaptation such as operating mode, measuring range, input hysteresis and low-pass filter and counter reset are computer controlled.
Operating modes:
a) Up/down counter b) Preset counter
c) Continuous period measurement d) Frequency measurement
a) Up/down counter
This operating mode is used to count pulses from different sources, to measure displacements or angles with
incremental transmitters or to count piece numbers, machine cycles, etc.
The nominal counting range is +/– 4,000,000, however, up to a maximum value of +/– 8,000,000 counting without data loss is possible. An adjustable stepwidth (scale factor) enables the number of counter steps to be reduced or increased, for example, in order to ensure measurement output up to +/– 15,625 for binary 2-byte output during which the least significant 8 bits are not transmitted.
Function boards
DMCplus complete system Digital counter board B-55
b) Preset counter
Pulses are counted consecutively until the preset number (adjustable from 2...4,000,000) has been reached.
The preset number cannot be output as measurement due to the fact that the counter is immediately set to zero when the preset number has been reached and counting is restarted. With down-counting, the counter reading is set from zero to the preset number minus 1 at the next counter pulse and counts back to zero. If channel B is used as carry counter, it functions like a standard up/down counter, and, each time channel A is set to zero, the counter is set one step up or down.
This mode is suitable, for example, for the measurement of the angle of rotation. Channel A is scaled to 0...360¡. Channel B measures the number of rotations.
c) Continuous period measurement
This operating mode is used to measure the time period
elapsing between two input pulses. With several pulses in one measurement period (which is determined by the selected measurement rate), the computed average is output as measurement. The selected time-measurement range is represented by 4,000,000 digits.
d) Frequency measurement
The frequency for the applied input pulses is determined. The selected frequency measuring-range is represented by 4,000,000 digits. This operating mode is only suitable, for example, for speed measurement.
Function boards
DMCplus complete system Digital counter board
B-56
D Transducer-connection sockets, interface description
1) Input signals a) Functions
IN1+ (Pin 8) / IN1- (Pin 15): Counter input 1 IN2+ (Pin 5) / IN2- (Pin 6): Counter input 2
For connecting the second phase of a 2-phase transducer, for recognition of the counter direction or to increase the resolu-tion,
or alternatively: counter direction inputoder
for transducers with output of the directional signal to change the counter direction for counter input 1.
Logic: up-counting = IN2+ > IN2–
down-counting = IN2+ < IN2–
IN3+ (Pin 12)/ IN3- (Pin 13): counter-lock input
To lock counter pulses
Logic: lock counter = IN3+> IN3
enable counter = IN3+ < IN3–
or alternatively: reset input to clear (zero) counter reading
Logic: reset = IN3+> IN3–
Function boards
DMCplus complete system Digital counter board
2.5V IN IN + IN – Transducer DZ 65 + – B A 50k 1k +250mV –250mV +250mV IN – IN + Low High IN
Schematic circuit diagram
Signal flow
B-57
b) Configuration
The IN1...IN3 inputs are differential inputs with voltage levels between –15V and +15V. The switching hysteresis can be ad-justed (through software via the computer) to suppress inter-ferences and to determine the switching threshold (triggering). This permits safe operation even with signals that are chan-ging very slowly. Furthermore, a 1st-order low-pass filter with a cutoff frequency of 20kHz can be activated to reduce all hig-her frequencies. The inputs can be connected as differential inputs or also single-ended related to ground.
Differential input
With the hysteresis adjusted to 500mV the signal present at
IN+ must exceed the signal at IN– by 250mV to be recognized
positive (High). Then IN+ must be 250mV lower than IN– to generate a Low signal for internal processing.
Function boards
DMCplus complete system Digital counter board
2.5V IN IN + IN – Transducer DZ 65 + – +5V +2.5V IN+ 0V High Low Hysteresis Reference point for switching hysteresis IN 50k 1k
Schematic circuit diagram
Signal flow
Ground
B-58
Input signal related to ground
TTL signals (0...5V) or CMOS signals (0...15V) can be connec-ted directly to the IN+ inputs or to the IN– inputs, if the nega-tive edge is to be counted. The open-ended inputs are nected to 2.5V internally thus making superfluous other con-nections. The switching hysteresis is symmetrical to this refe-rence level.
Function boards
DMCplus complete system Digital counter board B-59
2) Current supply for the transducer
Internal supply voltages of +15V, –15V and +5V are available for each channel to supply the measurement transducers that are connected. The +15V and –15V voltages are connected via internal protective resistors of 100 ohms each, thus redu-cing the output resistance according to the load. The limit of performance for the protective resistors is 250mW, therefore, the maximum loading currents permissible are limited to
50mA. Correspondingly, the supply voltage available may drop to about 10V.
The +5V supply is protected by a common electro-thermal fuse for both channels A and B. A steady-state current of 300mA is permissible. The fuse reacts at a current of about 600mA. After a non-permissible load having been removed, regular operation is only possible after a reset time of about 20s.
Function boards
DMCplus complete system Digital counter board
B-60
3) Output signals
OUT1 (Pin 9): Counter control-output 1
OUT2 (Pin 14): Counter control-output 2
For monitoring purposes, e.g., to adjust the hysteresis (trigger threshold) or for transducer adjustment, the outputs OUT1 and OUT2 permit connection to an oscilloscope.
OUT1 and OUT2 are HC-MOS outputs with 0...5V level. De-pending on the selected DZ65 setup such as:
count one edge of input signal IN1 only, count two edges of input signal IN1,
or count all four edges of input signals IN1 and IN2, and the selected hysteresis,
output OUT1 is used for the output of every edge recognized valid as a 0.25µs-wide pulse.
At output OUT2, the level changes from 0V to 5V or from 5V to 0V with every edge recognized valid, i.e. the frequency pre-sent at output OUT2 amounts to half the frequency at output OUT1.
Function boards
DMCplus complete system PC01 PCMCIA-hard disk
PC01 Eject button PCMCIA-hard disk Status indicator
2.3.5 PC01 PCMCIA-hard disk
B-61 Description:– Type III PCMCIA slot – 170MB hard-disk drive
The PC01 plug-in unit makes available a PCMCIA slot for a hard-disk drive. The PC01 with an integral 170MB hard disk expands the RAM to >40,000,000 measurements (standard RAM 40,000 or 500,000 measurements depending on the configuration).
In the DMCplus, the PC01 plug-in unit occupies two slots.
Decive Available
Slots Channels
DMC91T1 (12 channels) 4 8
DMC91T1B (12 channels) 4 8
DMC91E1 (12 channels) 4 8
with IE01 (IEEE-488-computer inter-face)
3 6
DMC91T2 (28 channels) 13 26
DMC91E2 (28 channels) 13 26
with IE01 (IEEE-488-computer inter-face)
Function boards
DMCplus complete system PC01 PCMCIA-hard disk
B-62
Measurement data is stored in standard DOS files; every mea-surement occupies 4 bytes. The maximum file size is limited by the maximum data depth of 1 million measurements per DMCplus channel. The maximum number of files is subject to the DOS conventions.
The files can be read on a computer with appropriate PCMCIA slot.
Expanding the currently used computer software:
D Before transmitting the measure instruction, open a file.
D Close the file after measurement and data transmission to
the computer (see operating manual ’Operation with com-puter or terminal’, instructions: FOD and PCC).
After software expansion, the DMCplus’ maximum data
throughput is reduced to about 40,000 measurements per se-cond.
C
Channel connection
Channel connection C-1
1 Connection cable. . . C-3 2 Types of connection for the DV. . amplifiers . . . C-5
2.1 Types of connection for DV01 . . . C-6 2.2 Types of connection for DV10, DV30, DV55 . . . C-12 2.3 Types of connection for DV35 . . . C-19 2.4 Types of connection for DV60 . . . C-21 2.5 Types of connection for DZ65 . . . C-27
1
Connection cables
Connection cables
Channel connection C-3
The measurement transducers are connected to the dual-channel amplifiers either directly by means of the transducer cable or with additional adapter cable.
D The transducer cable has free ends:
Connect a 15-pin plug connector (stock no. 2-9278.0321) or
use the Kab134 adapter cable and connect it to the transducer’s free ends.
WH RD BK BU GN GY 5 6 8 13 12 15 15-pin D-plug connector Free ends Cable length: 0.3m Cable diameter: 7.5mm 2 3 1 4 3’ 2’ S Adapter cable 134 DMCplus Transducer
Connection cables Channel connection
C-4
D An MS-plug has been connected to the transducer cable:
Use the Kab133 adapter cable.
WH RD BK BU GN GY 5 6 8 13 12 15 15-pin D-plug connector Cable length: 0.3m Cable diameter: 7.5mm Adapter cable 133 DMCplus Transducer B C A D F G E MS3101A 16S-1S 7-pin coupler socket
Types of connection for the DV. . amplifiers Channel connection
2
Types of connection for the DV... amplifiers
C-5
Two connection diagrams are used for each connection type. They differ with regard to the screen connection:
a:
The screen is connected to the plug housing (Greenline plug connector).
This type of screen connection complies with the EMC test (electromagnetic compatibility) that has been carried out by HBM.
b:
These diagrams show the screen connection that has been used with HBM devices up to now. The screen is connected to a plug point (here, PIN 1).
This solution offers only relatively low EMC protection and should only be used in special cases.
Note:
If upon connection of severalDC-voltage sources, some sources are electrically connected, the negative pole may be connected to the screen at one channel only.
CHANNEL B GREEN ACTIVE RED OVER-FLOW CHANNEL A DV 01 1 8 9 15 GREEN ACTIVE RED OVER-FLOW
Types of connection for DV01 Channel connection
2.1 Types of connection forDV01
8
4 15
Operating-voltage zero (ground) Thermal reference point
in ice water with 0°C Thermocouple Thermocouple extension wires Cu-lines Reference-point 15-pin socket 15 + – – + + – Ue Ue – Ue a: b: C-6
Amplifier plug-in unit DV01
Amplifier type DC
Transducers that can be connected
Thermocouples J, K, T, S and VMA3253 cold junction reference
Measuring range ±100mV
Active transducers that can beconnected
Measuring transmitters, e.g. HBM type PE200, P19AV, P19IV
Support power supply ±16V / 0 / –15V; Imax = ±50mA
Meas ring ranges ±10V
Measuring ranges
±20mA
Meas ring-signal inp ts DC voltage sources Measuring-signal inputs
DC current sources
Meas ring ranges ±0,1 V; ±1V; ±10V
Measuring ranges
±20 mA; ±200 mA
Cutoff frequency (–3dB) 2,2 kHz (–3dB)
