Siemens SIMATIC NET CP 142-2, Manual, Page: 62 / 84

B8976111/02 AS-i Master Module CP 142-2
4-25
4.2.1.20 Read Parameter Echo List
Meaning
When the parameters are transferred to the slave, they return “echo values” as the response. The
read parameter echo list call outputs the echo values of all slaves. The echo values of a slave
originate from the last parameter call output to this slave.
Structure of the job data in the send buffer
Bit 7 Bit 4 Bit 3 Bit 0
Byte 0 1 H 3 H
Structure of the job data in the receive buffer
Bit 7 Bit 4 Bit 3 Bit 0
Byte 0 Par.echo slave 1
Byte 1 Par.echo slave 2 Par.echo slave 3
Byte 2 Par.echo slave 4 Par.echo slave 5
Byte 3 Par.echo slave 6 Par.echo slave 7
Byte 4 Par.echo slave 8 Par.echo slave 9
Byte 5 Par.echo slave 10 Par.echo slave 11
Byte 6 Par.echo slave 12 Par.echo slave 13
Byte 7 Par.echo slave 14 Par.echo slave 15
Byte 8 Par.echo slave 16 Par.echo slave 17
Byte 9 Par.echo slave 18 Par.echo slave 19
Byte 10 Par.echo slave 20 Par.echo slave 21
Byte 11 Par.echo slave 22 Par.echo slave 23
Byte 12 Par.echo slave 24 Par.echo slave 25
Byte 13 Par.echo slave 26 Par.echo slave 27
Byte 14 Par.echo slave 28 Par.echo slave 29
Byte 15 Par.echo slave 30 Par.echo slave 31