Hello guys.

I have a challenge with my S7 200 PLC system that I would love to get help with.

I have a CPU 224, EM223, EM231, EM277, EM231 in that order. The first EM231 (AI4x12Bit) has analog addresses AIW0, AIW2, AIW4 and AIW6. I would want to imagine that the second EM231 (AI4x12Bit) has addresses AIW8, AIW10, AWI12 and AIW14 but when I connect signals to these addresses, I don't read any values. Could I be looking at wrong addresses? Or do I need to locate the second EM231 before the EM277 (Profibus Slave Module)?

Thanks in advance.

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Split from S7-200 224XP.

Closed cause question posted twice.

The second thread with the subject S7 200 ANALOG INPUTS ADDRESSING is published within the conference SIMATIC S7-200.

Best regards
Jen_Moderator