Application Notes

EAP-032158


Long Distance Transmission for Encoder Pulse Signal
 

At our printer paper production line, we are using rotary encoders. There is a PLC at central location and encoders are scattered in 6 different locations. The encoder has two open collector output signals for phase A and B positions. Is there a solution to transmit encoders’ signals to a PLC for a long distance from 20 meters to 70 meters?

 

MS Word

M-System’s pulse isolator (Model: RPPD) is selectable to use RS-422 line driver input and output. By converting open collector signal to RS-422 line driver pulse, a long distance transmission is available. A receiving unit (Model: RPPD) can output open collector signals to a PLC.

 

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