5/14/2018 8:37 AM | |
Joined: 3/5/2014 Last visit: 8/5/2022 Posts: 5521 Rating: (1054)
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hi cnmautomation, how is the wiring of your modules? What about the grounding? Which power supply do you use? Is it a proper 24V DC supply without any interferences? Have you checked the wiring guidelines in the S7-1200 system manual(chapter 4.4)? hope this helps, regards, |
FCK WAR! |
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5/16/2018 8:06 AM | |
Joined: 8/3/2017 Last visit: 6/11/2024 Posts: 1086 Rating: (53) |
Hi cnmautomation, I have seen that someone has posted the same issue as you: S7-1200 & it's digital I/O Modules LEDs Fail (Fused) Noodles |
Please, check out the forum search to find already existing topics regarding your issue and to get some hints. |
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