Problem with the DP connector on the PLC!

2016-03-06View Original

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The PLC has only one DP cable connected to the diagnostic repeater; it serves as both the master station and the endpoint. Should the DP connector on the PLC be connected to the incoming line or the outgoing line, and should it be set to ON or OFF?

Reply #22016-03-06

Can I set the output line to off?

Reply #32016-03-07

Terminal resistors are required on the DP plugs at both ends, connected to IN to turn it on

Reply #42016-03-07

If the DP connector on the PLC is connected to an output line and set to \"off\", and a DP cable is connected at the input side but no device is connected, it can still be used

Reply #52016-03-08

This post was last edited by qaswqasw on 2016-3-13 at 14:23. If the output wire is set to ‘off’, it remains connected to the input wire, but no terminal resistor is connected； Switch to the on position to isolate from the incoming line; connect a terminal resistor to the incoming line

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Problem with the DP connector on the PLC!

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