Instruction Manual

10 GuardPLC 1800 Controllers
Rockwell Automation Publication 1753-IN002C-EN-P - June 2010
Analog Input Terminals
GuardPLC 1800 controller with a 4-wire device
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T1 I1 L- T2 I2 L-
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T3 I3 L- T4 I4 L-
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T5 I4 L- T6 I6 L-
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T7 I7 L- T8 I8 L-
47 48 49 50 51 5241 42 43 44 45 46 53 54 55 56 57 58 59 60 61 62 63 64
+- +-
+- +-
Single-ended
voltage
External
Power
Supply
Single-ended
current
10kΩ
500Ω
External
Power
Supply
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T1 I1 L- T2 I2 L-
AI
T3 I3 L- T4 I4 L-
AI
T5 I4 L- T6 I6 L-
AI
T7 I7 L- T8 I8 L-
47 48 49 50 51 5241 42 43 44 45 46 53 54 55 56 57 58 59 60 61 62 63 64
+
+
-
-
+
+
-
-
24V DC
Power
Supply
COM
+
4-wire Device with Power Source
from GuardPLC controller
4-wire Device with External
Power Source