Siemens Analog Inputs Shared

Kthiel

Member
Join Date
Jun 2002
Location
Colorado
Posts
5
What is the best way to use relays to share a single analog input with several 4-20 mA 24VDC analog signals? Can you use timers to omit transient signals as the relays switch in and out or must you buffer the transients with capacitors & diodes? I am dealing with a Siemens S-7 226.
 

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