command message response message command message
PLC→drive PLC→drivedrive→PLC
time (s)
24 bit length
H5-06 setting
24 bit length
5 ms or more
n
H5-07: RTS Control Selection
Enables ore disables RTS (“request-to-send”).
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-07 RTS Control Selection
0: Disabled - RTS is always on.
1: Enabled - RTS turns on only when sending.
0, 1 1 42BH
Disable when using RS-485, and enable this setting when using RS-422. Power to the drive needs to be cycled for any setting changes to take affect.
n
H5-09: CE Detection Time
Sets the time required to detect a communications error. Adjustment may be need when networking several drives.
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-09 CE Detection Time
Sets the time required to detect a communications error. Adjustment may be need
when networking several drives.
0.0 to 10.0 s 2.0 s 435H
n
H5-10: Unit Selection for MEMOBUS/Modbus Register 0025H
Selects the units used for MEMOBUS/Modbus registry 0025H (Output Voltage Reference Monitor).
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-10
Unit Selection for MEMOBUS/Modbus
Register 0025H
0: 0.1 V units
1: 1 V units
0, 1 0 436H
n
H5-11: Communications ENTER Function Selection
Select the function for the enter command that saves parameter data to the drive.
No. Name Description Setting Range Default
MEMOBUS/Modbus
Address
H5-11
Communications ENTER
Function Selection
0: Save parameter data that was edited to the drive when the enter command is given.
1: Parameter data that has been edited is saved when the enter command is given
(compatible with the V7).
0, 1 1 43CH
n
H5-12: Run Command Method Selection
Determines how the Run command works when given via serial communications.
No. Name Description
Setting
Range
Default
MEMOBUS/Modbus
Address
H5-12
Run Command Method
Selection
0: FWD/STOP, REV/STOP Method
1: RUN/STOP, FWD/REV Method
0, 1 0 43DH
C.2 MEMOBUS/Modbus Parameters
YASKAWA ELECTRIC SIEP C710606 18A YASKAWA AC Drive – V1000 Technical Manual (Preliminary)
333
C
MEMOBUS/Modbus
Communications