Description Of Communication Protocol
V800 Series High Performance Closed-Loop Vector Inverter User manual
11.1.8 EXAMPLES
1) Start 1# Frequency inverter Operation.
Host request:
Coil Starting
Address
High Digit
Coil Starting
Address
Low Digit
Slave Unit Response: Frequency inverter will operate in positive direction, and return the identical data as
requested by the host.
2) Set the operation frequency as 25.00Hz for frequency inverter, and correspondingly, it is 50.00% of the
upper limit frequency 50.00 Hz.
Host request:
Register
Starting
Address
High Digit
Register
Starting
Address
Low Digit
Slave Unit Response: Set the value for frequency inverter’s frequency as 25.00Hz, and return the identical
data as requested by the host.
3) Return the frequency inverter’s current operational frequency and rotation speed, the positive rotating
frequency of frequency inverter is 50.00Hz, and positive rotation speed of the electrical motor is 1500rpm.
Host request:
Register
Starting
Address High
Digit
Register
Starting
Address
Low Digit
Number of
Registers
High Digit
Number of
Registers
Low Digit
Slave Unit Response:
The 1st
register
data high
digit
The 1st
register
data low
digit
The 2nd
register
data high
digit
The 2nd
register
data low
digit
4) Query the number of bus communication failures (CRC error calculation), return the number of bus
communication failure as 35.
Host request:
Sub-function
Code
High Digit
Sub-function
Code
Low Digit
To Next Page
Loading...
