3.8 Main Menu - Communications andOptions - Group 83.8.1 8-0* General Settings8-01 Control SiteOption: Function:Select Digital and ctrl.word [0] for usingdigital input and control word. SelectDigital only [1] to use digital inputs only.Select Control word only [2] to use controlword only. This parameter overrulessettings in 8-50 Coasting Select to8-56 Preset Reference Select.[0] * Digital andctrl.wordControl by using both digital input andcontrol word.[1] Digital only Control by using digital inputs only.[2] ControlwordonlyControl by using control word only.8-02 Control SourceOption: Function:Select the source of the control word.[0] None[1] * FC PortNOTEThis parameter cannot be adjusted while the motor isrunning.8-03 Control Timeout TimeRange: Function:1.0 s* [0.1 -6500.0 s]Enter the maximum time expected to passbetween the reception of two consecutivetelegrams. If this time is exceeded, it indicatesthat the serial communication has stopped.The function selected in 8-04 Control TimeoutFunction Control Time-out Function will thenbe carried out.8-04 Control Timeout FunctionOption: Function:Select the timeout function. The time-out function is activated when thecontrol word fails to be updated withinthe time period specified in8-03 Control Timeout Time.[0] * Off[1] Freeze output[2] Stop[3] Jogging[4] Max. speed[5] Stop and trip8-04 Control Timeout FunctionOption: Function:[20] N2 Override Release8-06 Reset Control Word TimeoutOption: Function:[0] * No function[1] Do reset Reset control word timeout.3.8.2 8-3* FC Port Settings8-30 ProtocolOption: Function:Select the protocol for the integrated RS-485port.[0] * FC Communication according to the FC Protocol.[2] Modbus RTU Communication according to the Modbus RTUprotocol.[3] Metasys N2 Communication protocol. The N2 softwareprotocol is designed to be general in nature inorder to accommodate the unique propertieseach device may have.[5] BACNetNOTEFurther details can be found in the Metasys manual.8-31 AddressRange: Function:1.0 * [0.0 - 247 ] Enter the address for the RS-485 port. Validrange: 1 - 126 for FC-bus OR 1-247 for Modbus.8-32 Baud RateOption: Function:Select the baud rate for the RS-485 port[0] 2400 Baud[1] 4800 Baud[2] * 9600 Baud[3] 19200 Baud[4] 38400 Baud[5] 57600 Baud[6] 76800 Baud[7] 115200 BaudDefault refers to the FC Protocol.8-33 Parity / Stop BitsOption: Function:Parity and Stop Bits for the protocolusing the FC Port. For some of theprotocols, not all options areavailable.[0] * Even Parity, 1 Stop BitParameters VLT HVAC Basic Drive Programming Guide46 MG.18.B1.02 - VLT® is a registered Danfoss trademark33