Modbus PLC

Generate a Modbus export using the 'File->Export->Modbus' feature. Parameters will be mapped to tags and registers. Registers will be assigned sequentially starting from the configured base addresses for each application.

 

Tags and register assignments must be generated manually using your PLC’s programming tools. All the registers that are referenced in the export must be available in the PLC.

 

Careful selection of the published values will reduce communications overhead and allow for more applications to be deployed. For example, by choosing not to publish any boolean values, Modbus coil registers will not be allocated and will not need to be synchronized.