9 Appendix
Connection diagram of multiple instruments
According to the signal type of the user's implementation site, 4-20mA current signal output and
RS485 digital signal output can be selected respectively
These two signal output modes are also different when wiring
A. 4-20mA current signal output connection mode. (must be grounded together)
B. RS485 digital signal output connection mode 1. (can be independently grounded)
Control panel
DCS or PLC
24V,DC
GND
GND
1
2
N
4-20mA
IN
Ch-1
Ch-2
Ch-N
Control panel
DCS or PLC
RS485B
RS485A
GND
24V,DC
GND
1
2
N
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