Command Interface

5.2.1Set_Permanent_Parameter

Purpose

With this call, a parameter value for the specified AS-i slave is transferred to the CP 243-2 . The value is saved permanently as a configured value.

The configured parameter is not transferred immediately to the AS-i slave by the CP 243-2. The configured parameter value is only transferred when the AS-i slave is activated after turning on the power supply on the CP 243-2.

This call is not permitted for AS-i slaves that comply with the AS-i slave standard profile 7.4. For these AS-i slaves, the AS-i master handles the AS-i slave parameter assignment itself. In this case, the configured parameters are always set to F H.

Structure of the Job Data in the Send Buffer

Bank Byte

2

0

 

 

21

22

 

Meaning

 

 

 

 

 

 

 

Bit 7

Bit 4

Bit 3

 

Bit 0

 

 

 

 

 

 

Command number: 00 H

 

 

 

AS-i slave address

 

 

 

 

 

 

irrelevant

 

 

Parameter

 

 

 

 

 

Structure of the Job Data in the Receive Buffer

Bank Byte

20

21

Meaning

Echo of the command number: 00 H

Command status

SIMATIC NET CP 243-2 AS-i Master

5-13

C79000-G8976-C142/02

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Siemens CP 243-2 installation instructions SetPermanentParameter, Purpose, Structure of the Job Data in the Send Buffer