• GLOBAL > PLC > SPH > Communication (T-link) > I find the TER_LED of the T-link master module (Type_ NP1L-TL1) sometimes illuminated. The communication speed is lowered when it occurs.
  • No : 1339
  • Displayed Date : 2023/04/25 19:00
  • Updated DTM : 2023/06/13 15:34
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I find the TER_LED of the T-link master module (Type_ NP1L-TL1) sometimes illuminated. The communication speed is lowered when it occurs.

I find the TER_LED of the T-link master module (Type_ NP1L-TL1) sometimes illuminated. The communication speed is lowered when it occurs.
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Answer

It may be caused by noise. Check the surrounding environment and wiring routes for any problem.
The lowered communication speed is assumed to be because there are several retries.