Catalogs > Automation Systems Catalog > Programmable Controllers > ControlLogix System > Communication Modules
Communication Modules
| Introduction |  |
Environmentals and Certifications | |
EtherNet/IP Network | |
ControlNet Network | |
DeviceNet Network | |
| Data Highway Plus and Remote I/O Networks | |
Foundation Fieldbus Network | |
Serial Communication | |
DH-485 Network | |
SynchLink Communication | |
The controller serial port is compatible with RS-232 serial communication. The serial port supports the DF1 protocol to communicate with other devices on the serial link.
Specifications [PDF]
Example Configuration—Serial Communication
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Modbus Support
To use Logix5000 controllers on Modbus, you connect through the serial port and execute a specific ladder logic routine. The controller project is available with RSLogix 5000 Enterprise programming software. For more information, see Using Logix5000 Controllers as Masters or Slaves on Modbus Application Solution, publication CIG-AP129.
Accessories—Serial Communication
| 1756-CP3 | 1747-CP3 | |
| Connector Type | Female 9-pin D-shell | |
| Connector angle | Right angle connector to controller, straight to serial port | |
| Length | 3 m (118 in.) | |