5/22/2012 3:04 PM | |
Posts: 691 Rating: (37) |
HI Have you checked that the PLC is properly wired up. Look carefully on the Flap ( Cover) of the PLC for wiring Details. |
5/22/2012 3:26 PM | |
Posts: 3 Rating: (3) |
you must connect all done the right way AttachmentS7-200 carta_Analog.pdf (121 Downloads) |
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5/23/2012 1:35 PM | |
Posts: 691 Rating: (37) |
Dear vivekbhavsar is your PLC Neutral Point ( M ) is proper. Forget about the LED , just check Voltage at the Input Pin Connections with respect to the Neutral( M ) Point of the PLC through Multimeter. If you are getting Signals at the PLC Input Pins in the Multimeter , then you may be required to change the PLC Module. Make sure you are checking the Voltage at the PLC Input Pins and M |
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