SiemensS7-1200
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Connection error S7-1200 and IS220PSCAH1A?
I have a Modbus connection to IS220PSCAH1A, and ATTN LED is always RED, Help?
SiemensS7-1200
Answers
Top answer
I see you have problems connecting the S7-1200 to the IS220PSCAH1A. In case the red ATTN LED lights up, see the tables of errors here.
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