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1 INTRODUCTION
Our Master Station is a ready-to-work solution which eases the command and control of large quan-
tities of motor operated valves by the mean of a fieldbus. It will help you saving time and resources.
It is an interface located between the DCS and the actuators, which can replace your standard
industrial computer. Because BERNARD CONTROLS Master Station is already set up, you will save
precious time during the commissioning phase. Just cable it and the system is quickly ready to work!
Overall start up time of your site is now reduced to the minimum.
Our Master Station is also able to work without the DCS. In case of default of your DCS or if you do
not want to include one in your installation, you can still communicate with your actuators through
the Master Station’s manual control, from the color touch screen. You can thus keep the control of
your valves even if the DCS is on hold or disconnected.
The Master Station is able to interface with a monitoring computer (optional) to control directly
valves’ automation. This PC workstation, equipped with specific software, allows to operate the
MOVs and to retrieve data and alarms from the field units. By choosing the PC workstation, you opt
for greater user friendliness. Indeed, we can work together on demand to schematize your installa-
tion in the software interface so as to overview all the actuators of your site easily. And for simple
use, the software is available in English, French, Spanish, German and Italian.
In order to ensure secure management of your site, considering the several control units, a control
hierarchy is set up. The standard control priority is defined from the closest device to actuators, to
the device which is the farthest:
ACTUATORS > MS > PC WORKSTATION > DCS
The consequence is that if an opposite order is received at the same moment from the Master Sta-
tion and from the DCS, the priority order is the one coming from the Master Station.
MODBUS
TCP/IP
ETHERNET
PROFIBUS
MODBUS
RTU
RS 485
OR
valve
valve
DCS (or PLC)
MASTER STATION