I design for governor valves control unit at the spillway area of hydro-power plant. this control system is one part of hydro-power plant control system. DCS, protocol of this control is Ethernet. I want this control to connect to DCS of powerhouse, but protocol of powerhouse control system is modbus. protocol of two control system is separate, so not to connect each other.

I have a question is that How do I connect two control system each other? at here distance between valves control unit and DCS of hydro-power plant is about 500m, connect in optical cable.

Thank alot!

 

This is a common challenge in automation world. The more often chosen solution recommended for it is OPC. OPC is a technology that is vendor neutral by which it enables you to connect different control systems together smoothly and headache free.

Here is a little about what OPC is all about:
http://www.matrikonopc.com/resources/opc-tutorials.aspx

Also feel free to visit our website to see the list of drivers that we support:
http://www.matrikonopc.com/

Hope this was helpful

Wassim Daoud
Global Solutions Architect
MatrikonOPC

 

Pham,

You do have a problem. In my experience most DCS systems have a Modbus communication option otherwise you could use a PLC to translate between the Ethernet and Modbus.

By the way, you don't say what protocol the ethernet is using. Give us the make and model of the DCS.

Regards,
Roy

 

I think "headache free" is a rather extreme overstatement. It binds you hand and foot to a very large and persistent headache. It only seems headache free if you already have the migraine.

Regards,
cww

 

Roy, that was my question, too.

Regarding the protocol used by the DCS, 'Ethernet' just isn't enough information.