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Chapter 7 Modbus Communication Protocol
F7 Torque control parameter
group
F8 V/F control parameter group
FA Protection parameter group
FB Process PID control parameter
set
FC multi-speed and simple PLC
function
FD communication parameter
group
C monitoring parameter group
C09 system monitoring
parameters
C10 Unit monitoring 1 group of
parameters
C11 Unit monitoring 2 groups of
parameters
MODBUS communication control
parameter group
Note: Due to the possibility of frequent rewriting of parameter values for communication, the
life of EEPROM will be reduced if it is stored frequently. For users, some function code parameters
do not need to be stored in the communication mode, but only need to change the value in the on-
chip RAM to meet the usage requirements. If the upper half-byte of the address field of the function
code parameter is 1, it will be written to EEPROM, that is, stored in power-down.
For example, if the function parameter [F0.14] is rewritten and not stored in the EEPROM, the
address is expressed as 000EH, and if it is stored in the EEPROM, the address is expressed as 100EH.
Description of MODBUS communication control parameter group addresses:
Function description
Communication
given frequency
Communication
command setting
AC drive status
ACH200 Series High Voltage Variable Frequency Speed Control System Operating Manual
Address
definition
0x3000 or
0~32000
0x2000
Correspondence 0.00Hz~320.00Hz
0000H: No order
0001H:
rotation operation
0002H:
0x3001 or
operation
0x2001
0003H:
rotation
movement
0004H: Reversing
point movement
0x3002 or
0:
Bit0
0x2002
Downtime
71
0x07xx（No deposit EEPROM）
0x17xx（Deposit EEPROM）
0x08xx（No deposit EEPROM）
0x18xx（Deposit EEPROM）
0x0Axx（No deposit EEPROM）
0x1Axx（Deposit EEPROM）
0x0Bxx（No deposit EEPROM）
0x1Bxx（Deposit EEPROM）
0x0Cxx（No deposit EEPROM）
0x1Cxx（Deposit EEPROM）
0x0Dxx（No deposit EEPROM）
0x1Dxx（Deposit EEPROM）
0x21xx
0x2Axx
0x2Bxx
0x2Cxx
0x30xx or 0x20xx
Description of data
meaning
0005H:
Deceleration
stop
Positive
0006H: Free
stop
Reverse
0007H:
Fault Reset
Positive
0008H: Run
point
the
ban
command
0009H: Run
the
allow
command
1: Operation
Status
R/W
characteristics
W/R
W/R
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