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Technical Forum
4/12/2011 4:31 PM | |
Joined: 7/2/2008 Last visit: 8/26/2024 Posts: 928 Rating: (308)
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Hello sundar, Please make sure that your Profibus network is OK. It seems that CPU is not able to find the ET200Ms. If you have USB PC adapter, try connecting itto theProfibus port of your CPU (You should have a bus connector with PG socket) andview the accessible nodes in SIMATIC Manager to make sure that all ET200Ms are connected (with correct addresses). Electrically, you can Buzzer pin no. 3 to make sure it's correctly connected on every node. Also buzzer pin no. 8 through out the whole network. I mean you must make sure that pin 8 is connected to pin 8 in every bus connector and do the same for pin 3. You should also make sure that outer metal cases of the SUB-D 9 are connected together (Shielded). Best regards. H-H |
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