analog output to two PLCs

A

Thread Starter

Anonymous

I'm wondering if it's ok to send the analog
output of a drive (speed, 0-10V) to two
different PLC analog input card?
 
M

Marc Sinclair

Hi,
This used to be fairly standard on production lines, where the filler 0-10v was used by all the downstream equipment, (nowadays the synchronisation is usually done with much more civilised digital protocols). I expect the only concerns would be that the various inputs and outputs are either galvanically isolated, or in reference to the same 0v.

Marc Sinclair
 
C

Curt Wuollet

Should be OK, unless the inputs
have very low impedance. In many
applications, like conveyors, the
0-10 V signal may go to many
places to synchronize speeds.
Unless the run is very short you
should shield it.

Regards
cww
 
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