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error_indication [2018/12/12 15:18]
akuzmuk [Communication issues]
error_indication [2019/01/08 09:07] (current)
akuzmuk [Communication issues]
Line 22: Line 22:
 In this example there is no response from PLC over built-in RS-485 port. You can see TX LED blinking when request sent and no RX LED activity. This means that WebHMI does not receive any response on these requests. In this example there is no response from PLC over built-in RS-485 port. You can see TX LED blinking when request sent and no RX LED activity. This means that WebHMI does not receive any response on these requests.
  
 +If you have very short scan time and too many reading errors ERR led can light permanently w/o blinking.

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