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Security, PLC, security, PLC, SM1 (self diagnosis), and SM56 (arithmetic error) in P
Time: 6/11/2017 11:34:38 PM

In securiC, PLC SM1 PLC (self diagnosis) and SM56 (arithmetic error) put 0 at normal PLC, and when the exception happens, place 1., but in what case will 1 be set? For example, self diagnostic errors, what conditions appear self diagnostic errors, how to repair the fault? I didn't find it in the security PLC manual and asked for explanations
Re:   Time: 6/12/2017 3:39:00 AM
You can rto SM1 the SM1 security CPU manual, chapter 6.7 of sh080627engg, which describes the possibility of self diagnostic errors.
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