Applies To:
  • CitectSCADA 6.0, 6.1, 6.1A, 7.0, 7.0r1
  • CitectHMI 6.0, 6.1, 6.1A, 7.0, 7.0r1


With MTL T-Net OPC server the tag addresses are very big and doesn't fit in to the Variables tags address form. For this we use OPCAccesspaths and Delimiters parameters in ini file but it gives #comms and Hardware alarm saying "101 Read error" and in kernel I get the error 0x101. I can see the server from citect but cannot get values. Why?



The reason is MTL T-Net OPC server doesn't support the Access paths option so we cannot use the OPCAccesspaths parameter in the ini file.

The work around for the issue is, in MTL T-Net OPC server we have the option of scaling the tags in the server. If you are using Scaling parameter in the OPCServer the tag addresses becomes very large and you cannot fit it into the Address section in Variables tag form but if you do not scale the tag in the OPC server the addresses becomes a bit shorted which can fit in the form. so choose not to scale the tag in the OPC server and then connect to citect scada and then scale the values in citect scada.