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9/28/2011 11:13 AM | |
Posts: 118 Rating: (4) |
Hi, we got one issue while PLC going to stop mode and return back to run mode. the communication got break, means PLC not able to get the keep alive signal. when i check with L3 machine side, they were telling, they are not receiving NAK(not acknowledge) for the message transffered by L3 machine during PLC in stop mode. What L3 trying to say is, When PLC in stop mode, still the machine sending Keep alive to PLC, PLC should send ACK or NAK as acknowledge. But PLC is in stop mode, its not sending any ACK or NAK. So after PLC turn back to run mode, machine not communicating with PLC. do u have any advise on this? main note : while PLC in Stop mode, the Rx,Tx LED in the CP341 is blinking. Pls help me. Splitted from RK512 Troubleshooting. |
Last edited by: O_Moderator at: 9/28/2011 12:06 PMnew subject after splitting Last edited by: Maha at: 9/28/2011 11:20 AM |
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9/28/2011 12:13 PM | |
Joined: 4/24/2009 Last visit: 8/20/2024 Posts: 2682 Rating: (135) |
Thread closed, because question is already discussed in the following thread Communication not estabilishing after CPU turn back to Run mode. Best regards O_Moderator |
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