Programming vacon • 2424-hour support +358 (0)40 837 1150 • Email: vacon@vacon.com55.3 Modbus RTU parameter descriptions5.3.1 Modbus RTU ParametersP5.X.3.1.1 S LAVE ADDRESSEach slave must have a unique address (from 1 to 247) so that it can be addressed indepen-dently from other nodes.P5.X.3.1.2 BAUD RATESelect the communication speed for the network. The default value is 9600 baud.P5.X.3.1.3 P ARITY TYPEUsers can select the parity type for the network.Modbus RTU specifies the stop bit configuration shown in table 7. The user can modify this stopbit configuration manually using parameter P5.X.3.1.4.Table 7. Parity typeP5. X .3.1.4 S TOP BITSUser can select the stop bit amount for the Modbus RTU network.P5.X.3.1.5 C OMMUNICATION TIME - OUTModbus initiates a communication error for a time defined with this parameter. ‘0’ means thatno fault is generated.P5.X.3.1.6 O PERATE MODEUsed to select the operate mode of the Modbus RTU protocol (slave / master). This feature isnot supported in Vacon 100 HVAC. The default Vacon 100 application supports only Slave mode.A special application is required for Master functionality.• 0 = Slave• 1 = Master5.3.2 Modbus RTU monitoring valuesP5.X.3.2.1 F IELDBUS PROTOCOL STATUSFieldbus Protocol Status tells the status of the protocol.Parity type StopbitsEven 1Odd 1None 2