sercos

MrPLC Member
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Posts posted by sercos


  1. Thanks for your help, after analog output problem scu card lost the comunication via host computer. I check the special modules, 3 of them has a setup parameter problem, i recommend the customer to contact with machine manufacturer.

  2. We have CJ1W-SCU41-V1 comunication module, after analog output module trouble ( we replaced analog output card ) we had erc error on SCU 41. Erc led is flashing, run led is lit, but there is no comunications with the host computer. We can connect the scu module but we can't upload the programs or macros it is password protected. What could be cause of the erc error, is there any way to clear errors. There are no erros on plc cpu, every think seems ok.

  3. I have 3 90-30 CPU 323 ( backplane) plc which are oem protection enabled. ( Few years ago some body enabled ) Machine manufacture will send me new eeprom. If we change eeprom do we also cancel the oem protection. I mean the password stored eeprom or ram area?