C.6 Drive Operations by MEMOBUS/ModbusThe drive operations that can be performed by MEMOBUS/Modbus communication depend on drive parameter settings. Thissection explains the functions that can be used and related parameter settings.u Observing the Drive OperationA PLC can perform the following actions with MEMOBUS/Modbus communications at any time regardless of parametersettings (except H5-oo).• Observe drive status and drive control terminal status from a PLC.• Read and write parameters.• Set and reset faults.• Set multi-function inputs. Inputs settings from the input terminals So and from MEMOBUS/Modbus communications areboth linked by an OR operation.u Controlling the DriveTo start and stop the drive or set the frequency reference using MEMOBUS/Modbus communications, an external referencemust be selected and the parameters listed below must be adjusted accordingly.Table C.1 Setting Parameters for Drive Control from MEMOBUS/ModbusParameter Name Required Settingb1-01 Frequency Reference Selection 2b1-02 Run Command Selection 2Refer to b1-01: Frequency Reference Selection on page 79 and Refer to b1-02: Run Command Selection on page 80 fordetails on external reference parameter selections.C.6 Drive Operations by MEMOBUS/ModbusYASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manual 217C MEMOBUS/ModbusCommunicationshttp://nicontrols.com
