Technical data

34 Rockwell Automation Publication 1769-TD005I-EN-P - August 2014
CompactLogix Controllers Specifications
1769 Packaged CompactLogix Controllers with Embedded I/O
The 1769-L23x controllers provide the following functionality:
• Built-in power supply
• Either two serial ports or one serial and one EtherNet/IP port, depending on controller catalog number
• Combination of embedded digital, analog, and high-speed counter I/O modules
• 1769-ECR right-end cap
You can add one or two additional 1769 modules to the right of the controller package. The modules you can add depend
on their current draw. Each packaged controller has the following amount of 5V DC bus current.
Table 20 - Features - 1769 Packaged CompactLogix Controllers
Characteristic 1769-L23E-QB1B 1769-L23E-QBFC1B 1769-L23-QBFC1B
Available user memory 512 KB 512 KB 512 KB
CompactFlash card None None None
Communication ports 1 EtherNet/IP port
1 RS-232 serial port (DF1 or ASCII)
1 EtherNet/IP port
1 RS-232 serial port (DF1 or ASCII)
2 RS-232 ports (isolated DF1 or ASCII; only
nonisolated DF1)
Embedded I/O • 16 DC inputs
• 16 DC outputs
• 16 DC inputs
• 16 DC outputs
•4 analog inputs
• 2 analog outputs
• 4 high-speed counters
•16 DC inputs
• 16 DC outputs
•4 analog inputs
• 2 analog outputs
• 4 high-speed counters
Module expansion capacity Up to three additional 1769 modules Up to two additional 1769 modules Up to two additional 1769 modules
Embedded power supply 24V DC 24V DC 24V DC
Table 21 - 1769-L23x Available DC Current
Controller Available 5V DC Bus Current
1769-L23E-QB1B 1000 mA
1769-L23E-QBFC1B 450 mA
1769-L23-QBFC1B 800 mA