200 Series General Purpose Vector AC Drive Chapter 7 Communication Protocol
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byte; the high byte presents the group serial number of function parameter; the low byte presents function
parameter within the group number and need witch to 16 system.
2
、
For Example
The upper machine read two data from the AC Drive, and the two data is setting frequency and DC bus
voltage, the address is 3001H, 3002H, and the upper machine should send the data to AC Drive as
follows;
Slave
address
Function
code
Parameter
address high
byte
Parameter
address low
byte
Read number
high byte
Read number
low byte
CRC Parity
bit high byte
CRC Parity
bit low byte
01 003 30
01
00
02
9A
CB
☞
Note: The setting frequency of AC Drive is 50.00Hz(corresponding 16 system data is 1388H). Bus
voltage is 540.0v (corresponding 16 system data is 1518H).The AC Drive feedback to the data to upper
machine: n=2 is the number of variable quantity.
Slave
address
Function
code
Read
number of
byte( 2*n)
The first
data high
byte
The first data
low byte
The second
data high
byte
The second
data low
byte
CRC
Parity bit
high byte
CRC
Parity bit
high byte
01 03 04 13
88
15
18 70 07
7.4 Function Code 06: Stands for the Function Code of Writing Variable
1
、
The address distribution of writing parameter
Function
Address
Data and meaning
Communication
control command
1000H
0001H: Run forward
0002H: Run reverse
0003H:Jog forward
0004H: Jog reverse
0005H: Deceleration to Stop
0006H:Coast to stop
0007H: Fault reset
Address of
communication setting
frequency value
2000H
0.00%
~
100.00%, when setting 10000 (corresponding
16 system: 2710H), the specified frequency value is the
maximum frequency.
PID setting address
2001H
0.0%
~
100.0%
PID feedback address
2002H
0.0%
~
100.0%
Torques setting value
2003H
-200.0%
~
200.0%
Function parameter
Function code 16
system is FX.YZ
High address: FX
Low address: YZ
☞
Note: When writing the RAM value of parameter, you could just change the register high address from
F to O. If writing the RAM of F1-11, the register address is 010B. But the express method of register