Goodrive350 IP55 High-ingress Protection Series VFD Communication protocol
-290-
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 Modbus communication commissioning example
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.
First, set the serial port to COM1. Then, set the baud rate consistently with P14.01. The data
bits, check bits, and end bits must be set consistently with P14.02. If the RTU mode is selected,
you need to select the hexadecimal form Input HEX. To set the software to automatically
execute the CRC function, you need to select ModbusRTU, select CRC16 (MODBU SRTU),
and set the start byte to 1. After the auto CRC check function is enabled, do not enter CRC
information in commands. Otherwise, command errors may occur due to repeated CRC check.
The commissioning command to set the VFD whose address is 03H to be forward running is
as follows:
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