K&R GT600-4T132G User Manual page 205

Master Command
ADDR
CMD
Parameter address high bits
Parameter address low bits
Number of function parameters
CRC high bits
CRC low bits
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Write Function Parameters
For function parameters in groups F0 to FF, the highest eight bits in communication
address indicate 00 to 0F or F0 to FF according to whether to write parameter to
EEPROM, while the lowest eight bits indicate the hexadecimal number converted from
SN in function code group.
For example, host computer writes data to F0-16. If not writing to EEPROM,
communication address is 0010H. If writing to EEPROM, communication address is
F010H.
For function parameters in groups A0 to AF, the highest eight bits in communication
address indicate 40 to 4F or A0 to AF according to whether to write parameter to
EEPROM, while the lowest eight bits indicate the hexadecimal number converted from
SN in function code group.
For example, host computer writes data to AC-08. If not writing to EEPROM,
communication address is 4C08H. If writing to EEPROM, communication address is
AC08H.
To write data, host computer needs to send a write command to the AC drive. Here takes
Modbus protocol as an example to describe communication process of writing data to
the AC drive.
For example, to write 2 to AC-16 (not writing to EEPROM), write command is
01064C1000021F5E (hexadecimal). In the command,
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01H (settable): AC drive address
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06H: write command
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4C10H: communication address of AC-16
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02H: writing data
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1F5EH: CRC check
Master Command
ADDR
CMD
Parameter address high bits
Parameter address low bits
Writing data high bits
Writing data low bits
CRC high bits
CRC low bits
Slave Response
01H ADDR
03H CMD
F0H Parameter address high bits
0AH Parameter address low bits
01H Number of function parameters
DEH CRC high bits
D7H CRC low bits
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Slave Response
01H ADDR
06H CMD
4CH Parameter address high bits
10H Parameter address low bits
00H Number of function parameters
02H CRC high bits
1FH CRC high bits
5EH CRC low bits
6. Description of Parameters
01H
03H
F0H
0AH
01H
DEH
D7H
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01H
06H
4CH
10H
00H
02H
1FH
5EH
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