Manual RS485 Corus.doc

CORUS

Optional RS485 board

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1 - Introduction

Actaris proposes a new technical solution to provide new possibilities for remote/local reading of the Corus. A new optional board with two independant RS485 ports offers increased communication capabilities with modems, RTUs, and gas chromatographs (future option).

The RS485 board can be used in hazardous area and up to 4 Corus can be

connected to the same modem (or RTU or gas chromatograph). The distance between the modem (or RTU) in safe area and the Corus depends on the number of Corus (1 to 4) and the electrical characteristics (linear L,C) and is at least 200m.

The user can select the speed and other communication parameters for each of the two ports, including the choice of the protocol (Modbus or I-Flag).

All devices on the same RS485 bus must have the same speed and data format. Commissioning of the RS485 board is very simple and retrofit (addition of an RS485 board on an existing Corus) is possible on site.

All communication ports of Corus (optical, RS232, two RS485) can be used simultaneously without restriction.

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2 - Technical description

2-1: Main characteristics:

• ATEX internal board with two independant RS485 ports

• ATEX compatibility with a maximum of 4 Corus connected on the same RS485 bus and a distance of 200m with the IS interface

• Connection on the optional slot (J3 - CPU board)

• Two wires passive RS485 ports half-duplex

• Simultaneous communication on all ports without restriction

• Configurable speed up to 38400 bauds

• Configurable protocol (Modbus RTU and/or I-Flag) 2-2: Conditions of use:

The board can be used when Corus is powered by battery or external power supply. When powered by battery, the calculation of the autonomy doesn’t change compared to a Corus without the optional board and should be based on communication time (for more details in chapter “8.4.3 Autonomy” of Corus user’s guide).

The two ports are passive meaning that the ports must be powered by the intrinsic safety interface that will be connected on the Corus through the RS485 ports. Each port is isolated separately and can be connected to two different materials (modems, RTUs, PCs, etc).

Suggested intrinsic safety interfaces are:

• ISB+ for RS485 signal

or

• the barrier Z961 (from Pepperl&Fuchs) for data signals

• the BXNE31 (from Georgin) power supply for powering the port.

A separate power supply and barrier (or ISB+) must be used for the second port. Depending on the cables, interfaces, and the number of Corus on the RS485 bus, the ATEX classification (IIC, IIB or IIA) of the Corus can change. More details on

maximal allowed parameters can be found in chapter 6. The classification with a single Corus and the above mentioned material (Z961 interface and BXNE31 power supply) remains IIC.

2-3: Electrical connections:

This section describes the electrical connections with Z961 zener barrier (ATEX interface) and the BXNE31 power supply module.

Corus ISB+ or with Z961 zener barrier and BXNE31 power supply: Corus RS485 board

(J1-J2 , J3-J4)

Z961 BXNE31 ISB+

(Hazardous area side)

Signal Connector Connector Connector

A 1 A

B 2 B

0 V L 0 V

+ H +

Z961and modem or RTU: BXNE31 and mains:

Z961 Modem’s or RTU’S RS485 port Connector Signal 5 B 8 A

ISB+ and modem or RTU:

ISB+ (Safe area side)

Modem’s or RTU’S RS485 port Connector Signal B B A A 0V 0V RS485 board layout BXNE31 Mains 230V AC Connector A ~ B ~ RS485 RS485 Port B A B 0V + A B

Example of connection on PLC through zener barrier 2 4 1 3 Z 9 6 1 5 7 6 8 L B X N E 3 1 A B H 50mm Connect to ground To mains or 24V DC

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Example of connection on PLC through ISB+ 50mm

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To Safe Area To Hazardous Area

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3 – Installation procedure for new Corus delivered with the

RS485 board inside

• Plug the battery of the Corus

• Wait for 10 seconds

• Check that the RS485 cable is connected properly to the intrinsic safety interface

• Configure the communication port with Wincor software or with the keyboard of the Corus in menu “Config” , “Communication”. See specific section of the chapter 4.

4 – Installation procedure for ‘Retrofit’

1) Check that the firmware version of the Corus is ≥≥≥≥ 0.75 ; If not, contact your local Actaris sales force for firmware procedure upgrade

2) The choice of the RS485 must be validated for the optional slot. This configuration can be done only via Wincor software.

- Connect the optical head between the PC and the Corus

- Select “RS485” in Slot option combo box and press on “Prog”.

IT IS VERY IMPORTANT THAT THE CONFIGURATION OF THE SLOT DESCRIBED ABOVE IS FOLLOWED BY A RESET AS DESCRIBED BELOW. OTHERWISE THE RS485 BOARD WILL NOT BE INITILIZED PROPERLY.

4) Connect the optional RS485 board as described with pictures below : a) Connect the flat cable on the optional connector slot

b) Place the board in order to get the 2 holes of the board in position to be screwed

c) Put the 2 screws that allow to fasten the RS485 board into the Corus Plug the flat cable

Adjust the 2 holes position

Connect the 2 screws If there is a seal,

check that the sealing wire is blocked by the plastic protection of the board

Pass the RS485 line cable through the black gland and connect it to the proper port.

6) Configuration of the RS485 board, using the keyboard of the Corus. The keyboard in menu “Config” can also set all parameters of the RS485 board.

The sub-menu “Communication” proposes a list of the available ports (if the optional RS485 is not plugged then the list shows only the RS232 port):

Select with the keyboard the port to configure with the arrows and then press on “OK” to access to the following submenu. The parameters to configure on the RS485 ports are:

• Modbus protocol activation

• Modbus address of the Corus

• Communication speed

• Number of bits

• Parity

• Time-out for reply

The possible values for these parameters are:

• Modbus: True, False (when selecting False, the Corus will use the default I-Flag protocol)

• Modbus address: from 1 to 247 (used to identify the Corus when connecting several devices in a RS485 bus. It is to be noted that after the ATEX interface more Modbus devices can be added to the RS485 bus. The limitation to 4 devices concerns only the Corus in hazardous area

• Communication speed: 300 to 38400 (300 , 600 , 1200 , 2400 , 4800 , 9600, 19200 , 38400)

• Number of bits: 7 or 8

• Parity: None, Even, Odd

• Timeout: 0 to 65535 ms

The parameters can be programmed through the keyboard. After selecting a parameter to change, the value of the parameter is selected from a list or the numerical value is set with the keyboard.

The function of each key is described below:

After setting the value you can confirm the selection with “OK” button. If by mistake the selected parameter is not the right one or if there is any other mistake, you can restore previous setting by canceling in the following menu where a confirmation is requested. The use of the keys in the confirmation menu is described below:

7) Configuration of the RS485 board, through WINCOR software (≥≥≥≥ V0.91)

- Connect the optical head between the PC and the Corus

- Into WINCOR, go in “Parameters” menu and then in “Communication” sub-menu

- Select “RS485 settings” to adjust the parameters of the 2 RS485 ports. The parameters are the same as those accessed through the keyboard (see section “6” of this chapter for more details).

- Click on ‘Prog’ after setting the port configuration.

8) Connect the wires (4 wires for each port) directly to the screw-connectors J1 and J3 of the RS485 board. A black gland on the box of the Corus is dedicated to the RS485 cable.

5 – Battery lifetime with the RS485 board

The impact on the autonomy of the Corus when using the RS485 is not significant. The table below gives indicative (see notes) autonomy of the Corus with its internal battery, according to the 3 main parameters with an impact on autonomy: analogue

measurements acquisition period, volume retransmission frequency through pulse outputs, communication through the RS485 ports.

Note 1:

The values provided in this table correspond to typical values in average conditions of use; They are calculated with a 30% margin to take into account the possible variations of operating conditions that could impact the consumption of the product (temperature, humidity,

self-discharge of the battery, …) Note 2:

The frequency of retransmissions indicated in the table corresponds to average frequency on the two outputs, when both channels are configured for pulses.

Note 3:

In case of activation of digital output as ALARM output, the consumption of the device can be impacted, specially in “Standard” mode for which the output is activated as long as the alarm is active. Then, it is recommended to use preferably the ‘limited’ mode or to use CORUS with an external power supply module if “Standard mode” is required.

Retrans Comm. duration

Acq. Period through RS485

0.9 year(s) 0.8 year(s) 0.8 year(s) 0.8 year(s) 0.7 year(s) 0.8 year(s) 0.8 year(s) 0.8 year(s) 0.8 year(s) 0.7 year(s) 3.4 year(s) 3.2 year(s) 2.7 year(s) 2.3 year(s) 1.7 year(s) 3.2 year(s) 3.0 year(s) 2.6 year(s) 2.2 year(s) 1.7 year(s) 5.3 year(s) 4.9 year(s) 3.8 year(s) 3.0 year(s) 2.1 year(s) 4.8 year(s) 4.5 year(s) 3.6 year(s) 2.8 year(s) 2.0 year(s) 6.6 year(s) 6.0 year(s) 4.5 year(s) 3.4 year(s) 6.6 year(s) 5.8 year(s) 5.4 year(s) 4.1 year(s) 3.2 year(s) 2.2 year(s) 7.5 year(s) 6.7 year(s) 4.9 year(s) 3.6 year(s) 2.4 year(s) 6.5 year(s) 5.9 year(s) 4.4 year(s) 3.3 year(s) 2.3 year(s) 8.6 year(s) 7.7 year(s) 5.3 year(s) 3.8 year(s) 2.5 year(s) 7.3 year(s) 6.6 year(s) 4.8 year(s) 3.6 year(s) 2.4 year(s) 9.6 year(s) 8.5 year(s) 5.7 year(s) 4.0 year(s) 2.5 year(s) 8.1 year(s) 7.2 year(s) 5.1 year(s) 3.7 year(s) 2.4 year(s) 10.2 year(s) 8.9 year(s) 5.9 year(s) 4.1 year(s) 2.6 year(s) 8.5 year(s) 7.5 year(s) 5.3 year(s) 3.8 year(s) 2.5 year(s)

45 15 min / month 15 min / week 60 15 min / month 15 min / week 20 15 min / month 15 min / week 30 15 min / month 15 min / week 10 15 min / month 15 min / week 15 15 min / month 15 min / week 1 15 min / month 15 min / week 5 15 min / month 15 min / week No Retrans 0.1 Hz 0.5 Hz 1.0 Hz 2.0 Hz

6 – Safety Instructions

6– 1: General

The Corus with the RS485 optional board has the ATEX certification and is approved according to 94/9/CE directive related to introduction of material in explosive

atmosphere area.

The respect of this directive is mandatory and is now included in the ‘CE’ marking.

6 – 2: Marking related to ATEX

The Corus equipped with its internal RS485 board is approved as category 1 equipment and is then suitable for use in zone 0 (areas with permanent presence of gas in normal operation)

The corresponding marking is :

0081 LCIE 03 ATEX 6165X II 1G EEx ia IIC T4 The ambient temperature range for operation is : -25°C ; +55°C

The following label is placed on the flat cable of the optional board:

6– 3: Specific safety instructions

• The connectors J1 and J3 of the RS485 board can be connected only to RS485 bus.

• Plug first the RS485 board into the Corus, before connection to the IS interface. Concerning bus cable, connect first the Corus side and finally as last action, connect the bus cable on IS interface side.

• When equipped with the RS485 board, the classification of the whole material is suitable for use in zone 0. The classification to Group IIC, IIB or IIA will depend from the interface and the cables that will be connected on RS485 ports. See electrical parameters for each case in ATEX certificate variation. The user is responsible for the compatibility of the material that will be connected on the RS485 ports and must check the compatibility with electrical parameters of Corus and put the suitable marking on the products.

LCIE 03 ATEX 6165X

CORUS RS485 ATEX BOARD

Actaris did calculate the compatibility for two typical cases:

Case A: 1 Corus + BXNE31 + Z961 : Classification IIC Case B: 4 Corus + BXNE31 + Z961 : Classification IIB

For the case B with 4 Corus one RS485 boards of each Corus is connected to the unique Z961 and to the unique BXNE31.

• Cable length between the Corus and the RS485 IS (intrinsic safe insulating) interfaces has an impact on the ATEX certification. The linear L and C of the cables multiplied by the length of the cable must be added to the parameters of the IS interface to evaluate the compatibility with electrical parameters defined in the ATEX certificate. The length of the cable between the IS interface and the PC or the RTU has no impact on ATEX compatibility.

The above calculations (A and B cases) have been made with 200m cables between each Corus and the Z961. The table below gives for the two cases the maximal linear L of the cable and the maximal linear C:

Case Cable length

Max linear L (µH/m) Max linear C (nF/m) A 200m 4.5 4.75 B 200m 20 121

• It is recommended (but not mandatory) to use a shielded cable for connection to the RS485 line. The diameter for this cable has to be lower than 6mm (optimized is 5,5 mm) and it has to be passed through the black gland of the Corus.

• This product is manufactured at the following address: ACTARIS

1 avenue des Temps Modernes Z.I de Chasseneuil-du-Poitou 86361 Chasseneuil-du-Poitou FRANCE

• Actaris Chasseneuil plant is accredited to manufacture ATEX products for following mode: Intrinsic Safety (ia), Encapsulation (m), Increased Safety (e) The site has the following certification number: LCIE 03 ATEX Q 8003

7 – ATEX certificate variation for RS485

1 AVENANT D’ATTESTATION D’EXAMEN CE DE TYPE

1 SUPPLEMENTARY EC TYPE EXAMINATION CERTIFICATE

2 Appareil ou système de protection destiné à être utilisé en atmosphères explosibles (Directive 94/9/CE)

2 Equipment or protective system intended for use in potentially explosive atmospheres (Directive 94/9/EC) 3 Numéro de l’avenant : 3 Supplementary certificate number :

LCIE 03 ATEX 6165 X / 03 LCIE 03 ATEX 6165 X / 03

Appareil ou système de protection : Equipment or protective system :

Convertisseur de volume Volume converter

4

Type : CORUS

4

Type : CORUS

5 Demandeur : ACTARIS 5 Applicant : ACTARIS

15 DESCRIPTION DE L’AVENANT 15 DESCRIPTION OF THE SUPPLEMENTARY CERTIFICATE

Modification des paramètres électriques de la carte RS 485.

Modification of electrical parameters of the board RS 485.

Les résultats des vérifications et essais figurent dans le rapport confidentiel N° 60050170/550682.

The examination and test results are recorded in confidential report N° 60050170/550682. Paramètres spécifiques du ou des modes de protection

concerné(s) :

Specific parameters of the mode(s) of protection concerned: Modifié comme suit pour la carte RS 485 : Modified as follow for the board RS 485 :

Groupe / Group Connecteurs / Terminal blocks Paramètres électriques / Electrical parameters

IIC IIB IIA

Ui ≤ 9,3 V ≤ 14,6 V 16,7 V ≤ Ui ≤ 22,4 V ≤ 16,7 V Ii ≤ 2,2 A ≤ 2,44 A ≤ 739 mA ≤ 2,03 A Pi ≤ 1 W Ci ≤ 3,95 µF J1, J2, J3, J4 Li ≈ 0

Le marquage doit être : Inchangé. The marking shall be : Unchanged.

16 DOCUMENTS DESCRIPTIFS 16 DESCRIPTIVE DOCUMENTS

Dossier technique N° D2001484-AE du 09/2006. Technical file N° D2001484-AE dated 09/2006. Ce dossier comprend 2 rubriques (13 pages). This file includes 2 items (13 pages).

17 CONDITIONS SPECIALES POUR UNE UTILISATION SURE

17 SPECIAL CONDITIONS FOR SAFE USE

Inchangées. Unchanged.

18 EXIGENCES ESSENTIELLES DE SECURITE ET DE SANTE

18 ESSENTIAL HEALTH AND SAFETY REQUIREMENTS

Inchangées. Unchanged.

19 VERIFICATIONS ET ESSAIS INDIVIDUELS 19 ROUTINE VERIFICATIONS AND TESTS

Inchangées. Unchanged.

Fontenay-aux-Roses, le 25 septembre 2006 Le responsable de certification ATEX ATEX certification manager

© C o p yr ig h t 2 0 0 7 , A ct a ri s, A ll R ig h ts R e se rve d . - A ct a ri s re se rve s t h e r ig h t to ch a n g e t h e se sp e ci fi ca ti o n s w it h o u t p ri o r n o ti ce . A 202156 – D 2007214