The inputs, outputs and parameters of an application can be influenced in various ways. These are identified by the following symbols in this document:
|DTE||Data Terminal Equipment|
|Modbus master||A MODBUS device, which is able to access data in one or more connected MODBUS Slave|
|Modbus slave||A MODBUS device, which is able to respond to requests from a single MODBUS master|
|Pxx||Parameters of the device where xx = 00, 01, 02, etc.|
|RDF Modbus||The name of RDF302, RDF302/VB and RDF302.B providing RS485 Modbus communicative|
|RTU||Remote Terminal Unit = Standard MODBUS transmission mode|
The communication objects of the RDF302, RDF302/VB and RDF302.B thermostats are described accordingly.
A list of the parameters is shown in section 3.13.