Fronius RI FB Inside/i Bedienungsanleitung Seite 74

Example
Example request for reading six registers and writing three registers.
Request
Field Name
Unit Identifier
Function code
Read Starting Address Hi
Read Starting Address Lo
Quantity to Read Hi
Quantity to Read Lo
Write Starting Address Hi
Write Starting Address Lo
Quantity to Write Hi
Quantity to Write Lo
Write Byte Count
Write Registers Value Hi
Write Registers Value Lo
Write Registers Value Hi
Write Registers Value Lo
Write Registers Value Hi
Write Registers Value Lo
74
Response
Hex Field Name
00 Unit Identifier
17 Function code
01 Byte Count
00 Read Registers Value Hi
00 Read Registers Value Lo
06 Read Registers Value Hi
00 Read Registers Value Lo
00 Read Registers Value Hi
00 Read Registers Value Lo
03 Read Registers Value Hi
06 Read Registers Value Lo
01 Read Registers Value Hi
FA Read Registers Value Lo
02 Read Registers Value Hi
FB Read Registers Value Lo
03
FC
Hex
00
17
0C
00
FE
0A
CD
00
01
00
03
00
0D
00
FF