8000m Series
- 143 -
300BH Output terminal status R
300CH Input of AVI R
300DH Reserved R
300EH Reserved R
300FH Reserved R
3010H Reserved R
3011H Reserved R
3012H Step No. of PLC or multi-step R
3013H Reserved R
3014H External counter input R
3015H Reserved R
3016H Reserved R
VFD fault info
address
5000H Fault Code in Hex format R
The above shows the format of the frame. Now we will introduce the modbus
command and data structure in details, which is called protocol data unit for
simplicity. Also MSB stands for the most significant byte and LSB stands for the
least significant byte for the same reason. The description below is data format in
RTU mode.
Protocol data unit format of reading parameters:
Request format:
Protocol data unit Data length(bytes) Range
Command 1 03H
Data Address 2 0~FFFFH
Data Number 2 0001~0010H
Note: The maximum number of data can be read in one request is 16 (0010H).
Reply format (success):
To Next Page
Loading...
Need help?
General
