SCADAPack 535 Modbus TCP question

[BenP]

Hi All,

I am having a problem with SCADApack 535's interfacing to some devices on Modbus TCP and I have narrowed it down to the SCADAPack 535 not using the Transaction Identifier in the Modbus frame (it is always zero).

as a test, I used a SCADApack 470 and the interface problems do not occur because the 470 uses the Transaction Identifier in its implementation of Modbus TCP.

is there a way to turn on the Transaction Identifier for Modbus TCP in the SCADApack 535?

Thanks in advance

Ben.