Appendix 11 Input Circuit Diagram
A30
Diagrams of the input circuits are shown below.
Appendix 11Input Circuit Diagram
Analog Inputs (Voltage, Thermocouple, Humidity, RTD, and
Resistance)
Channel-Select Relays
For RTDs and Resistance
only
1 mA Constant Current Source
SoL terminal is common to all channels.
Pulse Input Circuit Diagram
22 pF
5 V
1.1 M
100 k
5 V
Example of a connec-
tion to PLC output
(minus common output)
: 0.047 F when Anti-Chatter Filter is enabled
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