
TMP High Performance Vector Control Inverter User Manual
124
Message format of slave response:
Slave
address
Function
code
Start address of
data
Modified
value
Redundancy
check
1 byte
06H
MSB
LSB
MS
B
LSB
LSB
MSB
(3) Loop detection
The command is used to test whether communication between main control
equipment (usually PC or PLC) and the drive is normal. After receiving data
content, the drive will return it to main control equipment without any modifying.
ASCII:
(1)
Read data:
Reading data should be less than 30 bytes at a time.
Message format of master request:
Fram
e
head
Slave
address
Functio
n code
Data
address
Data
quantity
LRC
Frame
tail
‘:’
MS
B
LS
B
‘0
’
‘3
’
4 3 2 1 4 3 2 1
MS
B
LS
B
C
R
L
F
Message format of slave response:
Fram
e
head
Slave
address
Functio
n code
Data
address
Data
quantity
LRC
Frame
tail
‘:’
MS
B
LS
B
‘0
’
‘3
’
4 3 2 1 4 3 2 1
MS
B
LS
B
C
R
L
F
(2) Modify data:
Message format of master request: