3.2.1 Operator Station (OS)
The Operator Station is a type approved personal computer, connected to a colour graphics display and a printer. Operator input is either done through a standard personal computer keyboard or through specially designed Operator Panels, providing easy access to the different operator functions.
Figure 4 Operator Station (OS)
The Operator Station can be supplied with a printer (for
on-demand printing), an alarm printer, log printer or colour hard copy unit. When a Distributed Process Unit detects an alarm condition, several things happens. In the Alarm Navigator the alarm group which contains the alarm will start to flicker. The alarm is also displayed in the lower right corner of the colour graphics display, a buzzer is turned on and the Alarm Printer automatically prints the alarm. By clicking on the flickering alarmgroup, more detailed alarm information is displayed on the colour graphics display. Detailed sensor information for any Distributed Process Unit, such as alarm or normal status data, can also be shown on the colour graphics display, or printed on demand. Sensor data can be presented as a bar graph (analogue sensors) or a trend curve (analogue and digital sensors). Selected
sensor data may be printed automatically at fixed intervals.
The system can display the latest alarms for each alarm group individually or all active alarms.
The logging printer and the colour graphics display records all status changes, such as alarm acknowledgements and alarm condition cleared. When all alarm conditions are cleared, the system returns to normal. Alarm limits and delays are adjustable by using the Operator Panel. A counter function keeps track of running hours for engines, pumps and related items. This function can also accumulate flow. Counter values are shown on the colour graphics display or may be printed.
The Operator Station is used when transferring machinery watch responsibility between bridge and engine control room, and selecting the engineer for watch-call duty. All available engineers, whether on duty or not, may be called to the engine control room in case of an emergency.
3.2.2 Midi Operator Station (MOS)
The Midi Operator Station is a multipurpose Operator Station designed to be placed anywhere on the ship, even out on deck. It allows alarm indication, process control and power management.
Operation is performed through a set of function keys and a high resolution colour graphical display. For small alarm systems it can be the only Operator Station. The Midi Operator Station contains a symbol library for presentation of process control equipment and uses these to display mimic diagrams.
Figure 5 Alarm and Monitoring System (cJoy)
The Midi Operator Station gives the operator the possibility to:
• Monitor the status of any object, from a single input signal to a controllable object
• Be informed of any process- or system alarm, through visual and audible signals
• Interface to a printer for alarm logging purposes
• Control the process through built-in pushbuttons and graphical feedback
• Reconfigure the distributed database located in the Distributed Processing Units, through numeric and alphanumeric inputs.
3.2.3 Control Room Panel (CRP)
The Control Room Panel (CRP) contains the following:
• A 19 buttons keypad for screen navigation, entering numbers and text into the system
• A trackball with seven buttons integrated in the circular trackball cover
• An alarm area containing three alarm buttons and an alarm lamp (ACK, “Silence"andALARM VIEW).
• A command area containing three command buttons (TAKE, GIVEandSTATUS). They are related to access and control transfer, but are not used for Alarm and Monitoring Systems without Process Control and Power Management.
• A panel area containing three status lamps (POWER,FAULT andALARM)
The CRP do not have background light. It is meant to be placed in a room with light, like the control room. But the CRP have LED indicators, for instance in the alarm and panel area.
The CRP is powered from 24 Vdc.
Figure 6 Control Room Panel (CRP)
3.2.4 Input Panel (INP)
The Input Panel contains a 19 buttons keypad for screen navigation, entering numbers and text into the system It has also a trackball with seven buttons integrated in the circular trackball cover.
The background light can be dimmed from the Operator Station which the panel is a part of. A light sensor registers the light intensity above the panel and can be used for controlling background light and status lamps automatically.
The Input Panel is powered from 24 Vdc.
Figure 7 Input Panel (INP)
3.2.5 Alarm & Control Panel (ALC)
The ALC Panel is used for Command Control and Alarm Control by pushing dedicated buttons, and it displays and sounds system status by its status lamps and buzzers.
The light intensity of the background light and the status lamps can be dimmed from the Operator Station which the panel is a part of.
The ALC Panel is powered and communicates through a single USB cable.
The ALC Panel contains the following controls and indicators:
• Three status lamps (POWER,FAULTandALARM)
• Three command buttons (TAKE, GIVEandSTATUS).They are related to access and control transfer, but are not used for Alarm and Monitoring Systems without Process Control and Power Management.
• Three alarm buttons (ACK,“Silence"andALARM VIEW), and an alarm lamp.
Figure 8 Alarm & Control Panel (ALC)
3.2.6 Touch Control Panel (TCP)
The Touch Control Panel (TCP) is used to interact with the images on the colour monitor of the Operator Station of the K-Chief 500 system.
The image on the TCP is called the Navigator and is divided in two parts; the Alarm Navigator and the Graphic Display Navigator. The Navigator is constantly displayed to give easy access to all the information of the K-Chief 500 system.
The TCP frame is made of aluminium and stainless steel. The rear has several apertures for sufficient ventilation. The TCP is easy to install into a console. It is mounted smoothly using four bolts, one in each corner.
To reduce the reflective shine from the sun, the TCP is anti-glare.
It is also dimmable, so it can be adjusted for use during day and night time.
Figure 9 Touch Control Panel (TCP)