Siemens CP 243-2 - Manual (Page 93)

Command Interface
5-25
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
5.2.13 Set_Operation_Mode
Purpose of the Command
With this call, you can select between the configuration mode and the protected
mode.
In the protected mode, only AS-i slaves are activated that are entered in the LPS
and whose expected and actual configurations match, in other words when the I/O
configuration and ID codes of the detected AS-i slaves are identical to the
configured values.
In the configuration mode, all detected AS-i slaves (except for slave address “0”)
are activated. This also applies to AS-i slaves in which there are differences
between the expected and actual configuration.
The “OPERATION MODE” bit is saved permanently in the EEPROM, i.e. it is
retained following a startup/restart.
When changing from the configuration mode to the protected mode, the CP 243-2
is restarted (transition to the offline phase followed by switchover to the online
mode).
Note
If an AS-i slave with the address “0” is connected, the CP 243-2 cannot switch
from the configuration mode to the protected mode.
Structure of the Job Data in the Send Buffer
Bank Byte Meaning
2 0 Command number: 0C
H
2 1 Operating mode
protected mode: 00H
configuration mode: 01H
Structure of the Job Data in the Receive Buffer
Bank Byte Meaning
2 0 Echo of the command number: 0C
H
2 1 Command status