Technical data

Rockwell Automation Publication 1769-TD005I-EN-P - August 2014 49

CompactLogix Controllers Specifications

1768 CompactLogix Controllers

The 1768-L4x controller combines both a 1768 backplane and a 1769 backplane. The 1768 backplane supports the 1768

controller, the 1768 power supply, and a maximum of four 1768 modules. The 1769 backplane supports 1769 modules.

Table 34 - Features - 1768 CompactLogix Controllers

Characteristic 1768-L43 1768-L43S 1768-L45 1768-L45S

Available user memory 2 MB 2 MB standard

0.5 MB safety

3 MB 3 MB standard

1 MB safety

CompactFlash card 1784-CF128 1784-CF128

Communication options • EtherNet/IP (standard and safety)

• ControlNet (standard and safety)

• DeviceNet (standard)

• EtherNet/IP (standard and safety)

• ControlNet (standard and safety)

• DeviceNet (standard)

Serial communication port 1 RS-232 port 1 RS-232 port

Module expansion capacity • Two 1768 modules

• Sixteen 1769 modules

• Two 1768 modules

• Thirty 1769 modules

Power supply distance rating — —

Programming languages • Relay ladder

• Structured text

• Function block

• Sequential function chart

• Standard task: all languages

• Safety task: relay ladder,

safety application

instructions