FlexLogix System

Catalogs > Automation Systems Catalog > Programmable Controllers > FlexLogix System > Networks

Networks

Serial 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



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.)

Typical Serial Configuration



Optical Isolator

The FlexLogix controller is grounded through its DIN rail and its grounding stud. An isolator is recommended between the controller and the workstation.

Application	Example Configuration
If you connect the controller to a modem or an ASCII device, install the optical isolator between the controller and end device.
An optical isolator is recommended if you use the serial port to directly connect a programming workstation to the controller.