Honeywell SMV800 User Manual page 121

Request
Field Name
Slave ID
Function Code
Byte Count
(file number + record number + record length)
File Number
Record Number
Record Length
Response
Field Name
Slave ID
Function Code
Byte Count (file number +
record number +
data)
File Number
Record Number
Record Data
Parameter id for
Slave Address
Parameter size
Configuration
history Data for
Slave Address
So the last parameters that was in history record 1 is slave address which was changed from
247 (00 F7). Current slave address from request and response is 245(0xF5). Which means
slave address is changed from 247 to 245 and the value of 247 is recorded as history.
Revision 1.0
Bytes
1 Byte
1 Byte
1 Byte
record
2 Bytes
2 Bytes
27 Bytes
1 Byte
1 Bytes
32 Bytes
SMV800 Modbus User's Guide
Bytes Hex
1 Byte 0xF5
1 Byte 0x41
1 Byte 0x06
2 Bytes 0x0001
2 Bytes 0x0001
2 Bytes 0x0001
Hex
0xF5
0x41
0x26
0x0001
0x0001
0x00
0x02
0x00 F7 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00
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