Applies To:
  • CitectSCADA 5.31, 5.40, 5.41, 5.42, 5.50, 6.0, 6.1, 7.0
  • CitectHMI 5.31, 5.40, 5.41, 5.42, 5.50, 6.0, 6.1, 7.0
  • CitectFacilities 5.31, 5.40, 5.41, 5.42, 5.50, 6.0, 6.1, 7.0


What is the tag addressing structure for a TSX37 Micro PLC connected to the Uni-Telway port (TER) of a Premium PLC as a slave?



CitectSCADA is not able to communicate directly to the Micro PLC via the TER Uni-Telway port of the Premium PLC.

To read the tag data from a Micro PLC all data needs to be mapped or exchanged from the Micro into the Premium PLC using read_var and write_var commands (Unity Pro). This mapped data can then be referenced in Citect accordingly.

The UNITE driver only supports 3 levels of XWAY adressing (IO Device form) Network.Station.Gate. There is no allowance for SLAVE devices connected via the TER port.