mcr on t100md-2424

[mcw]

is there any way to monitor the state of the mcr pin? i'm thinking running the pin voltage through a voltage divider into an anlog input, but maybe there is an easier way.

Thanks,

mike
balls machine & mfg

[support]

Since the MCR input is normally high, you can connect it to an unused digital input that has a pull down resistor (1K, 1Watt) to 0V. That way, the input will normally be ON but when MCR voltage is present it is turn OFF and the PLC can therefore monitor it.

[mcw]

Thanks for the reply.
Before I let the smoke out of something,  is it like this? --

mcr pin --> resistor --> input --> 0-vdc

or like this?

mcr pin --> input --> resistor --> 0-vdc

[support]

mcr pin --> input --> resistor --> 0-vdc

MCR pin goes directly to the PLC input, and there is a resistor connector to the same input that pulls it to 0V when MCR voltage is absent.

[mcw]

Thanks.

mike

[evanh]

Code: [Select]

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[Terminal]--------------------| (MCR pin)
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               | | 1k0        |
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[evanh]

hmm, the fixed font/code font entering isn't working too well on this site but I think you get the idea.


Evan