Proximity sensor help required

[plasticsales]

Ok, the diagram I show is correct but omit R2 and connect the proximity switch output to INx+ and connect INx- to ground. Make the value of R1 anything between 0 (ie a direct connection) and 470R assuming a 12v supply, its not that critical. More than 12v will need higher value. You can use the 12v output from the BOB but then you get no opto-isolation. Do you have any other power supply on the machine side?

Note the proximity switch connection shown in fig4 in the manual is for an NPN switch.

I am using a separate 12 volt power supply.

Thank you for your help I will have to order 470R I have some 1/2 watt 10K and 1.5K resistors.