About OMRON Host Link Communications

The OMRONรข Host Link communications enabler supports OMRON C-Series and CV-Series programmable controllers in point-to-point and multi-drop configurations with one master device where the CIMPLICITY Host Link Communications enabler acts as the master.

The OMRON Host Link Communications provides read and write access to the OMRON programmable controllers via a Host Link System Network. You can make RS-232 or RS-422 connections through the built in Host Link interface on the programmable controller's CPU or through an optional Host Link Unit in the OMRON PC's rack.

All communication commands are implemented as master/slave communications where the CIMPLICITY OMRON Host Link communications enabler acts as the master responsible for requesting data from or writing data to OMRON programmable controller(s). Unsolicited data sent from OMRON programmable controllers is not supported.

You can connect up to 32 OMRON programmable controllers to a host computer via multi-drop RS-422 line.

You can connect to one OMRON C-Series or CV-Series programmable controller via an RS-232 line.

This enabler supports the following CIMPLICITY features:

Polled reads at user defined rates

Poll after setpoint

Triggered reads

Analog deadband

Alarm on communications failure

Server Redundancy configurations

This enabler supports the following data types:

Signed 8, 16, and 32 bit integer

Unsigned 8, 16, and 32 bit integers

Floating point



Omron Hostlink supports up to 16 COM ports.

More information

Supported protocols.

Supported OMRON devices.

Supported addresses.

OMRON required documents.

Hardware configuration requirements.

OMRON PLC cabling diagrams.

CIMPLICITY configuration for OMRON Host Link.

OMRON Host Link diagnostics.

Advanced configuration topics-adjust the communications time-out parameter.

Default protocol parameters.