Siemens SITRANS LG270 Operating Instructions Manual page 90

Parameter
Sub Function Code
Data
Response:
Parameter
Function Code
Sub Function Code
Data
Implemented function codes:
Sub Function Code
0x00
0x0B
With sub function codes 0x00 only one 16 bit value can be written.
FC16 Write Multiple Register
With this function code, several holding registers can be writen. Only registers can be written in an
enquiry which are immediately consecutive. If there are gaps (registers do not exist) between the
registers, then they cannot be written in a telegram.
Request:
Parameter
Function Code
Start Address
Register Value
Byte Number
Register Value
Response:
Parameter
Function Code
Sub Function Code
Data
FC17 Report Slave ID
With this function code, the Slave ID can be queried.
Request:
Parameter
Function Code
90
Length
2 Bytes
N*2 Bytes
Length
1 Byte
2 Bytes
N*2 Bytes
Name
Return Data Request
Return Message Counter
Length
1 Byte
2 Bytes
2 Bytes
1 Byte
N*2 Bytes
Length
1 Byte
2 Bytes
2 Bytes
Length
1 Byte
SITRANS LG270 - Operating Instructions
Code/Data
Data
Code/Data
0x08
Data
Code/Data
0x10
0x0000 to 0xFFFF
0x0001 to 0x007B
2*N
Data
Code/Data
0x10
0x0000 to 0xFFFF
0x01 to 0x7B
Code/Data
0x11
PBD-51041066