C.1 Memobus/Modbus Configuration - YASKAWA L1000A Technical Manual

C.1 MEMOBUS/Modbus Configuration

C.1 MEMOBUS/Modbus Configuration
Drives can be controlled from a PLC or other master device via serial communications using the MEMOBUS/Modbus
protocol.
MEMOBUS/Modbus communications can be configured using one master (PLC) and up to 255 slaves. The drive has
slave functionality only, meaning that serial communication is normally initiated from the master and responded to by the
slaves.
The master communicates to the specified slave drive. The address or node for each slave must be set beforehand so that
the master can communicate with the slave at that address. A slave that receives a command from the master will perform
the specified function and then send a response back to the master.
Figure C.1
Master (PLC or other)
Slave (Drive)
YEA_common
Figure C.1 Connecting Multiple Drives to a PLC
444 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual