INSTALLATION
WIRING REQUIREMENTS
2
-
17
Peer-to-Peer Communication Wiring
1. The module bus wires for connecting multiple Type SLC control-
lers should be twisted-pair stranded wires insulated with low leakage
insulation materials.
Figure 2-13. Digital Inputs in Nonisolated Mode
Figure 2-14. Digital Inputs in Isolated Mode
+5 V
TERMINATION BOARD
TP80423B
FIELD
+24 V
MAIN BOARD
INPUT CIRCUITRY
S1-1, 2, 3
CLOSED
TERMINAL
BLOCK
TB2
+
–
DI
PWR
!
+5 V
TERMINATION BOARD
TP80424B
FIELD
+24 V
MAIN BOARD
INPUT CIRCUITRY
S1-1, 2, 3
OPEN
TERMINAL
BLOCK
TB2
+
–
+24 V
(EXTERNAL)
DI
PWR
!