Connect KCOM with 0VDC?

[speedmeup]

Is it OK to connect KCOM with power supply 0VDC so that I can simplify my wiring out to sensors?

This way I will only need 3 cores for powered sensors:

• 0V/KCOM,
  
• +12VDC,
  
• Dry Contact Input
  

Thank you.

[admin]

it's ok.