Siemens SIMATIC NET IE/AS-INTERFACE LINK PN IO

8 Using the Data Record Interface
170
IE/AS−INTERFACE LINK PN IO as of hardware version 1, as of firmware version V2.0
Release 08/2018
C79000−G8976−C216−03
8.2.2.19 Get_Write_Parameter_Echo
Meaning
The “Get_Write_Parameter_Echo” job (Section 8.2.2.3), echo values of an AS-i
slave are output as the response to a “Write_Parameter” job. The echo value of an
AS-i slave originates from the last parameter call sent to this AS-i slave. If several
“Get_Write_Parameter_Echo” jobs are sent, the older echo values are lost.
Structure of the RecordDataRead service − Index 81
Byte Meaning
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
0 Version_hi = 0x00
1 Version_lo = 0x00
2
0x0
Parameter echo
0x0
P3 P2 P1 P0
3 Reserved 0x00