34 Rockwell Automation Publication 5069-UM004A-EN-P - April 2019
Chapter 1 Digital Module Operation in a Control System
Power the Modules
Compact 5000 I/O digital modules receive the following power types from
first component in the system, that is, the controller or adapter:
• System-side Power - Powers the system and lets modules transfer data
and execute logic.
System-side power is provided through the Module (MOD) Power
connector and is passed to each module as it is added to the system.
System-side power is also known as MOD power.
• Field-side Power - Powers field-side devices that are connected to some
Compact 5000 I/O digital modules.
Field-side power is provided through the Sensor/Actuator (SA) Power
connector and is passed to each module as it is added to the system.
Field-side power is also known as SA power.
Power begins at the left-most device in the system and passes across the I/O
module internal circuitry via power buses. The MOD power bus and SA power
buses are isolated from each other. The left-most device is either a controller or
an EtherNet/IP adapter.
5069-OBV8S
SIL2 CPU
5069-L3100ERMS2
Compact GuardLogix
5069-OBV8S
5069-IB8S5069-IB8S
OUTPUT OUTPUT
SA Power MOD Power
DC INPUT
5069-IB16
DC OUTPUT
5069-OB16
ANALOG INPUT
5069-IY4
SA Power MOD Power
ANALOG OUTPUT
5069-OF8
DC INPUT
5069-IB16
Standard Modules
Safety Modules
™
NET B1
LINK B1
NET A1
LINK A1
NET A2
LINK A2
SPEED X1
LINK X1
OK
RUN
FORCE
FAN 1
SD
FAN 2
CompactLogix 5480
B1
A1
1
2
A2
5069-L46ERMW
CONTROLLER
UPS
MP
SA
R
B
F
R
B
F
DC INPUT
5069-IB16
DC OUTPUT
5069-OB16
ANALOG INPUT
5069-IY4
ANALOG OUTPUT
5069-OF8
DC INPUT
5069-IB16
IMPORTANT Remember the following:
• A system has only one MOD power bus.
• A system can have multiple SA Power buses. The first SA power bus
typically starts at the controller or adapter, and 5069-FPD field potential
distributors let you establish new SA power buses in the same system.
For more information, see the following:
–
Use a 5069-FPD Field Potential Distributor to Establish New SA Power
Buses on page 35.
– Rockwell Automation technical support center Knowledgebase
article, 5069 I/O Modules that Require Sensor/Actuator (SA) Power,
#751748.
The technical support center is available at: https://
rockwellautomation.custhelp.com/
• Compact GuardLogix 5380 controllers only:
– You must use an SELV/PELV-listed power supply to provide MOD
power and SA power to the controller.
– Additional requirements exist when you power a functional safety
application that includes Compact 5000 I/O safety modules.
For more information on these requirements, see
Power Requirements
When You Use Compact 5000 I/O Safety Modules on page 37.
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