Salicru CV30, User Manual, Page: 113 / 140

Communication protocol 113 - 140
Note: P29 group is the factory parameter which can not be read or changed. Some parameters can not be
changed when the inverter is in the running state and some parameters can not be changed in any state.
The setting range, unit and relative instructions should be paid attention to when modifying the function code
parameters.
Besides, EEPROM is stocked frequently, which may shorten the usage time of EEPROM. For users, some
functions are not necessary to be stocked on the communication mode. The needs can be met on by
changing the value in RAM. Changing the high bit of the function code form 0 to 1 can also realize the
function. For example, the function code P00.07 is not stocked into EEPROM. Only by changing the value in
RAM can set the address to 8007H. This address can only be used in writing RAM other than reading. If it is
used to read, it is an invalid address.
7.4.2 The address instruction of other function in Modbus
The master can operate on the parameters of the inverter as well as control the inverter, such as running or
stopping and monitoring the working state of the inverter.
Below is the parameter list of other functions
Function
instruction
Address
definition
Data meaning instruction
R/W
characteristics
Communication
control command
2000H
0001H: forward running
W/R
0002H: reverse running
0003H: forward jogging
0004H: reverse jogging
0005H: stop
0006H: coast to stop (emergency stop)
0007H: fault reset
0008H: jogging stop
The address of the
communication n
setting value
2001H
Communication setting frequency (0~Fmax)
Unit: 0.01Hz
W/R
2002H
PID reference, range (0~1000) 1000
corresponds to 100.0%
2003H
PID feedback, range (0~1000) 1000
corresponds to 100.0%
W/R