Siemens SINAMICS V90 Operating Instructions Manual page 229

Example: p1215 and p1120 read acyclically
The table below formats a request to read the parameter values of p1215 and p1120 from
slave number 1.
Byte
Header
01 h 0
10 h 1
0258 h 2,3
000A h 4,5
14 h 6
User data
0001 h 7,8
2F10 h 9,10
8001 h 11,12
0202 h 13,14
1001 h 15,16
04BF h 17,18
0000 h 19,20
1001 h 21,22
0460 h 23,24
0000 h 25,26
Write the PLC command from registers 40601 to 40610:
SINAMICS V90, SIMOTICS S-1FL6
Operating Instructions, 09/2016, A5E36037884-002
Description
Slave address
Function code (write multiple)
Register start address
Number of registers to be read (40601 ... 40610)
Number of data bytes (10 registers, each 2 bytes = 20
bytes)
40601: DS47 Control = 1 (activate request)
40602: Function 2F h (47), request length 16 bytes (10 h)
40603: Request reference = 80 h, request identifier = 1 h
40604: V90 = 2 h, number of parameters = 2
40605: Attribute, number of elements of the first parame-
ter
40606: First parameter number = p1215
40607: First parameter subindex = 0
40608: Attribute, number of elements of the second parame-
ter
40609: Second paramter number = p1120
40610: Second parameter subindex = 0
Control functions
7.7 Communicating with the PLC
229