Technical data

12 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
I/O Module Support - CompactLogix 5370 L2 Controllers
The CompactLogix 5370 L2 controllers offer embedded I/O modules and the option of using 1769 Compact I/O
modules as local expansion modules. The following table describes the embedded I/O modules and local expansion
modules that are supported by CompactLogix 5370 L2 controllers.
Available 5V DC POINTBus
backplane current
1 A @ 5V DC
Current draw @ 24V DC, field power, max 3 A
(1)
Inrush, max 10 A
Line loss ride through 10 ms…10 s
Output bus current capacity, max 0.1…3 A @ 5V DC
Load current, min 300 mA
Power dissipation, max 12 W
Short circuit protection Internal fuse
Not user replaceable
Overvoltage protection Yes
(1) Combined total for all devices drawing current from field power connections.
Cat. No.
Embedded I/O Module Support Local Expansion
Modules Support
Sinking/Sourcing
24V DC Digital
Input Points
Sourcing 24V DC
Digital Output
Points
High-speed
Counters
High-speed
Counter Output
Points
Universal Analog
Input Points
Analog Output
Points
1769 Compact I/O
Modules
1769-L24ER-QB1B1616----As many as 4
modules
1769-L24ER-QBFC1B 4442
1769-L27ERM-QBFC1B
IMPORTANT
Remember the following when using the embedded I/O modules on CompactLogix 5370 L2 controllers:
• 1769-L24ER-QB1B controller - The digital input points and digital output points are on one embedded I/O module. Therefore,
the 1769-L24ER-QB1B controller is considered to have one embedded I/O module.
• 1769-L24ER-QBFC1B and 1769-L27ERM-QBFC1B controllers - The digital input points and digital output points are on one
embedded I/O module. The high-speed counter input output points, universal analog input points, and analog output points
are on another single embedded I/O module. Therefore, the 1769-L24ER-QBFC1B and 1769-L27ERM-QBFC1B controllers are
considered to have two embedded I/O modules.
Table 7 - Embedded Power Supply
Attribute 1769-L16ER-BB1B, 1769-L18ER-BB1B, 1769-L18ERM-BB1B