Rockwell Automation Publication 1769-UM021I-EN-P - May 2018 149
Use I/O Modules with CompactLogix 5370 L1 Controllers Chapter 7
Embedded I/O Modules
CompactLogix 5370 L1 controllers provide an embedded power supply and an
embedded I/O module with these points:
• 16 sinking 24V DC digital input points
• 16 sourcing 24V DC digital output points
The following diagram shows the wiring terminals on the embedded I/O
module.
Consider the following when you connect input or output devices to the
embedded I/O modules of your CompactLogix 5370 L1 controller:
• You must connect an external 24V DC power source to the FP+ and FP-
terminals on the removable connector on the controller to power input
and output devices that are connected to the embedded I/O modules on
the controller:
– Series A for L16ER, L18ER, and L18ERM controllers require an
extra external 24V DC power source for the FP+ and FP- terminal
connections. For more information on how to connect an extra
external power source for series A L1 controller to the FP+ and FP-
terminals, see Appendix C
.
– Series B controllers use the external 24V DC power source that is
connected to the VDC+ and VDC- terminals on the controller for
the FP+ and FP- terminal connections. Series B controllers can also
use an extra external 24V DC power source for the FP+ and FP-
terminal connections. See Appendix C
for more information on how
to connect the extra external power source to the FP+ and FP-
terminals. For more information on how to connect the external
power source to the FP+ and FP- terminals on the series B controller,
see page 146
.
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