Fronius RI FB Inside/i Bedienungsanleitung Seite 71

16 (10 )
This function code is used to write a block of contiguous registers (1 to 20 regis-
dec hex
ters) in a remote device. The requested written values are specified in the request
Write Multiple
data field. Data is packed as two bytes per register. The normal response returns
Register
the function code, the starting address, and the number of registers written.
Request
Function code
Starting address
Number of registers
Number of bytes
Register values
N* = number of registers to be written
Response
Function code
Starting address
Number of registers
Error
Error code
Exception code
Example
Example request for writing two registers (F00B
Request
Field Name
Transaction Identifier Hi
Transaction Identifier Lo
Protocol Identifier Hi
Protocol Identifier Lo
Length Hi
Length Lo
Unit Identifier
Function code
Starting Address Hi
Starting Address Lo
Quantity of Registers Hi
Quantity of Registers Lo
Byte Count
Register Value Hi
Register Value Lo
1 byte 10
hex
2 bytes 0000
hex
2 bytes 0001
hex
1 byte 2 x N*
N* x 2 bytes Value
1 byte 10
hex
2 bytes 0000
hex
2 bytes 1 to 123 (7B
1 byte 90
hex
1 byte 01 or 02 or 03 or 04
Response
Hex Field Name
00 Transaction Identifier Hi
01 Transaction Identifier Lo
00 Protocol Identifier Hi
00 Protocol Identifier Lo
00 Length Hi
11 Length Lo
00 Unit Identifier
10 Function code
00 Starting Address Hi
0B Starting Address Lo
00 Quantity of Registers Hi
02 Quantity of Registers Lo
04
7F
FF
Englisch (US)
to FFFF
hex
or 0078
hex
to FFFF
hex
)
hex
– F00C ).
hex hex
Hex
00
01
00
00
00
11
00
10
00
0B
00
02
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