B.5 Drive Operations by BACnetThe drive operations that can be performed by BACnet communication depend on drive parameter settings. This sectionexplains the functions that can be used and related parameter settings.u Observing the Drive OperationA controller can perform the following actions with BACnet communications at any time regardless of parameter settings(except for H5-ooparameters):• Observe drive status and drive control terminal status from a controller• Read and write parameters• Set and reset faults• Set multi-function inputs.Note: Input settings from the input terminals So and from BACnet communications are both linked by a logical OR operation.u Controlling the DriveSelect an external reference and adjust the parameters in Table B.1 accordingly to start and stop the drive or set the frequencyreference using BACnet communications.Table B.1 Setting Parameters for Drive Control from BACnetReference Source Parameter Name Required SettingExternal Reference 1 b1-01 Frequency Reference Selection 1 2b1-02 Run Command Selection 1 2External Reference 2 b1-15 Frequency Reference Selection 2 2b1-16 Run Command Selection 2 2Refer to b1-01: Frequency Reference Selection for AUTO Mode on page 24 and Refer to b1-02: Run Command Selectionfor AUTO Mode on page 25 for details on external reference parameter selections.B.5 Drive Operations by BACnet254 YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual