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Wiring the channels
October 2023
Wire the discrete input (externally powered)
Procedure
Wire to the appropriate input terminal and pins.
Note
Use external powered for voltage signals input to the 4700 DI.
Figure 3-21: Discrete input wiring (externally powered)
A. Discrete input
B. Channel B
C. 30 VDC (maximum)
Note
•
Maximum positive threshold is 3 VDC.
•
Minimum negative threshold is 0.6 VDC.
3.6
Wire the RS-485 output (Channel C)
Use this section to wire the RS-485 output in explosion-proof, nonincendive, or
nonhazardous installations.
Procedure
Wire to the appropriate output terminal and pins.
Figure 3-22: RS-485 output wiring
A. RS-485 output
Note
The transmitter does not provide any RS-485 termination resistance.
36
Installation Manual
00825-0100-5710
Micro Motion 4700 CIO Transmitter
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