C.2 MEMOBUS/Modbus ConfigurationDrives can be controlled from a PLC or other master device via serial communications using the MEMOBUS/Modbus protocol.MEMOBUS/Modbus communication can be configured using one master (PLC) and a maximum of 255 slaves. The drive hasslave functionality only, meaning that serial communication is normally initiated from the master and responded to by theslaves.The master performs serial communications with only one slave at a time. The address or node for each slave must be setbeforehand so that the master can communicate with the slave at that address. A slave that receives a command from the masterwill perform the specified function and then send a response back to the master.Master (PLC or other)DRIVE DRIVE DRIVEFigure C.1 Connecting Multiple Drives to a PLCC.2 MEMOBUS/Modbus ConfigurationYASKAWA ELECTRIC SIEP C710606 18F YASKAWA AC Drive – V1000 Technical Manual 433C MEMOBUS/ModbusCommunications
