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S7-224 AC / DC / relay plc which do not register any input on i0.0

11/24/2012 4:56 PM	Rate (0)
Brian_N Posts: 2 Rating: (0)	good evening I have a S7-224 AC / DC / relay plc which do not register input on i0.0 Before I throw it out, I would like to hear if I'm the one doing it wrong? Attachment Udklip.JPG (203 Downloads)
Brian_N Posts: 2 Rating: (0)
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11/24/2012 5:29 PM	Rate (0)
Marcjan Diamond Member Joined: 4/22/2010 Last visit: 3/31/2025 Posts: 5697 Rating: (716)	Hello, I think your wiring is not correct, you need to supply +24V to switch,0V to 1M. See attached schematic. If wiring is correct it could be that the sensor powersupply is dammaged, you can use external supply. Never put external and sensor supply in paralel. regards, Marcjan Attachment 224_wiring.JPG (214 Downloads)
	Last edited by: Marcjan at: 11/24/2012 5:30 PM Problem solved? Please let us know! Please no technical questions by PM, use the forum sections for your questions.
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11/24/2012 6:06 PM	Rate (0)
Brian_N Posts: 2 Rating: (0)	I must apologize for my stupid questions. it is correct Marcjan. I made a mistake with the power source. It is now corrected. and the PLC works fine :) Thank for you for the help
Brian_N Posts: 2 Rating: (0)
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This contribution was helpful to 1 thankful Users Marcjan

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