Network and Wireless
Field Wiring Question: "SC" configured outputs to MetaSys
What is the correct way to wire an output from an RO-4 configured as "SC" (4-20 mA) to an analog input point on a Johnson Controls XP-9102? Is external loop power required by the RO-4 output (as in, does the +15vdc loop power have to come from the XP-9102), or is loop power already provided by the RO-4?
David, good questions. The RO-4' s current outputs, both SC and UC, are sourceing meaning that they do not require external voltage. If external voltage is applied it will damage the output.
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