12.8 H: Terminal Functions
946 YASKAWA SIEPC71061737D GA800 Drive Technical Reference
You can use the MEMOBUS/Modbus protocol over the RS-485 port (terminals D+ and D-) in the drive to use serial
communication with programmable controllers (PLC).
■ H5-01: Drive Node Address
No.
(Hex.)
Name Description
Default
(Range)
H5-01
(0425)
Drive Node Address
Sets the communication slave address for drives.
1FH
(0 - FFH)
Note:
• Re-energize the drive or set H5-20 = 1 [Communication Parameters Reload = Reload Now] after you change the parameter setting.
• Setting 0 will not let the drive respond to MEMOBUS/Modbus communications.
To enable the drive to communicate with the controller (master) over MEMOBUS/Modbus communications, you
must set the drive with a slave address. Set H5-01 ≠ 0.
Set a node address that is different from the master and other slave devices.
■ H5-02: Communication Speed Selection
No.
(Hex.)
Name Description
Default
(Range)
H5-02
(0426)
Communication Speed
Selection
Sets the communications speed for MEMOBUS/Modbus communications.
3
(0 - 8)
Note:
Re-energize the drive or set H5-20 = 1 [Communication Parameters Reload = Reload Now] after you change the parameter setting.
0 : 1200 bps
1 : 2400 bps
2 : 4800 bps
3 : 9600 bps
4 : 19.2 kbps
5 : 38.4 kbps
6 : 57.6 kbps
7 : 76.8 kbps
8 : 115.2 kbps
■ H5-03: Communication Parity Selection
No.
(Hex.)
Name Description
Default
(Range)
H5-03
(0427)
Communication Parity
Selection
Sets the communications parity used for MEMOBUS/Modbus communications.
0
(0 - 2)
Note:
Re-energize the drive or set H5-20 = 1 [Communication Parameters Reload = Reload Now] after you change the parameter setting.
0 : No parity
1 : Even parity
2 : Odd parity
■ H5-04: Communication Error Stop Method
No.
(Hex.)
Name Description
Default
(Range)
H5-04
(0428)
Communication Error Stop
Method
Sets the motor Stopping Method when the drive detects CE [Modbus Communication Error] issues.
3
(0 - 3)
0 : Ramp to Stop
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