neerajpuranik
Member
Dear Friends,
we are commissioning a machine having TWIDO PLC( TWDLMDA20DRT + TWDDRA16RT. The machine was lying idle for a year before commissioning. When we powered up the machine we have observed ERR LED in PLC flashing RED. After communication with PLC we found that the application program is not there. We contacted the OEM & he sent us the program. When we Tried to download the program the PLC is giving checksum error & download is aborted every time. I am attaching the PDF of all the print screen files I can capture. I am unable to understand what is checksum error & what will be the possible cause of it. One more observation is the PLC is not showing any mode i.e. it is not in RUN / STOP mode. The manual says it is in HALT but there is no way described to put it in RUN or Stop.
Kindly suggest
Regards,
Neeraj
we are commissioning a machine having TWIDO PLC( TWDLMDA20DRT + TWDDRA16RT. The machine was lying idle for a year before commissioning. When we powered up the machine we have observed ERR LED in PLC flashing RED. After communication with PLC we found that the application program is not there. We contacted the OEM & he sent us the program. When we Tried to download the program the PLC is giving checksum error & download is aborted every time. I am attaching the PDF of all the print screen files I can capture. I am unable to understand what is checksum error & what will be the possible cause of it. One more observation is the PLC is not showing any mode i.e. it is not in RUN / STOP mode. The manual says it is in HALT but there is no way described to put it in RUN or Stop.
Kindly suggest
Regards,
Neeraj
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