NPSK

Dear all

We are using S7-400H CPU (6ES7 414 5HM06 0AB0) system with ET-200M(6ES7 153 2BA02 0XB0) Consisting of 2 DI modules(6ES7 312 1BL00 0AA0), 3 AI Modules(6ES7 331 7NF10 0AB0)
And 4 RTD Modules (6ES7 331 7PF01 0AB0)


The problem is in the RTD moduels are configured as Pt100-Std., 4-wire. "8-Channel Hardware Filter" When connecting the RTD simulator the following readings are observed

For Channel 0,2,4,6 - RTD Simulation Value - Value in the Moduel(Vat table)

0 -9
10 88
20 188
30 276
40 374
50 465
60 565



For Channel 1,3,5,7 - RTD Simulation Value - Value in the Moduel(Vat table)

0 -50
10 59
20 158
30 249
40 349
50 442
60 541

What could be the reason for two different off-sets.

Any suggestion for how to solve the problem.