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26 read_as-i_slave_i/o – Siemens CP 243-2 User Manual

Page 120

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Command Interface

5-52

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

5.2.26

Read_AS-i_Slave_I/O

Purpose

With this call, the I/O configuration of an AS-i slave can be read out directly over
the AS-i cable. The call is intended for diagnostic purposes and is not required in
the normal master mode.

Structure of the Job Data in the Send Buffer

Bank

Byte

Meaning

2

0

Command number: 18

H

2

1

AS-i slave address

Structure of the Job Data in the Receive Buffer

Bank

Byte

Meaning

Bit 7

Bit 4

Bit 3

Bit 0

2

0

Echo of the command number: 18

H

2

1

Command status

2

2

reserved

I/O configuration