OPC

Definition

OPC means OLE for Process Control, and OLE stands for Object Linking and Embedding. It's a client-server standard used to access data from a process control device using Windows based applications.

Read more about OPC in the WiKiPedia.

OPC Server Configuration

In Alice Tof, the OPC server is installed on one or more Windows PC in the DCS network. The OPC server is distributed by CAEN and the last version is CAENHVOPCServer_2.9 (library 2.15-1.6).

After the installation, the IP address of the device is to be configured.

At the moment we are connected in bdg 167 to:

• lvali1 137.138.9.177
  
• hvali1 137.138.9.164

In the DCS network we have 6 power supplies:

The device name is then used by PVSS as the power supply name.
Next step will be the re-organization of the DP attributes in different OPC groups; we have verified that 4 full easy systems and 2 hv systems are too big for a single OPC manager.

-- OmbrettaPinazza - 24 May 2007
-- Updated OmbrettaPinazza - 20 Dec 2007