IPE300 series engineering VFD Communication protocol
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If the operation is successful, the following response is returned:
Parameter
address
VFD
address
Continuous
write
command
CRC
Parameter
quantity
01 10 20 00 00 02 4A 08
Example 2: Set "Acceleration time" of the VFD whose address is 01H to 10s, and "Deceleration time"
to 20s.
P00.11 and P00.12 setting range: 0.0–3600.0s
The address of P00.11 is 000B, 10s is 0064H in the hexadecimal form, and 20s is 00C8H in the
hexadecimal form.
The command transmitted from the master is as follows:
Parameter
address
VFD
address
Continuous
write
command
Number of
bytes
Parameter
quantity
01 10 00 0B 00 02 04
10s
00 64
20s
00 C8
CRC
F2 55
If the operation is successful, the following response is returned:
Parameter
address
VFD
address
Continuous
write
command
CRC
Parameter
quantity
01 10 00 0B 00 02 30 0A
Note: In the preceding command description, spaces are added to a command just for explanatory
purposes. In practical applications, no space is required in the commands.
9.4.8.4 Example of Modbus communication commissioning
A PC is used as the host, an RS232-RS485 converter is used for signal conversion, and the PC serial
port used by the converter is COM1 (an RS232 port). The upper computer commissioning software is
the serial port commissioning assistant Commix, which can be downloaded from the Internet.
Download a version that can automatically execute the CRC check function. The following figure
shows the interface of Commix.
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