
B8976111/02
AS-i Master Module CP 142-2
2-10
Configuration mode
The configuration mode is used to install and start up an AS-i installation.
In the configuration mode, the CP 142-2 can exchange data with every slave attached to the AS-i
cable (with the exception of a slave with address “0”). Any AS-i slaves that are added later are
activated immediately and included in the cyclic data exchange.
After the system has been installed and tested, the CP 142-2 can be switched to the protected mode
by pressing the SET/DISPLAY button for longer than 5 seconds. At the same time, active AS-i slaves
are configured. The following data are then stored permanently on the CP 142-2:
±
The addresses of the AS-i slaves
±
The ID codes
±
The I/O configuration
±
The current slave parameters
Protected mode
In the protected mode, the CP 142-2 exchanges data with the configured AS-i slaves. “Configured”
means that the slave addresses stored on the CP 142-2 and the configuration data stored on the CP
142-2 match the values of the existing AS-i slaves.
Steps in configuration
1. Change the CP 142-2 to the “Status Display” mode with the SET/DISPLAY (press the
SET/DISPLAY briefly, all group LEDs go off).
2. Check that the CP 142-2 is in the “Configuration Mode” state (“CM” LED lit). If the CP
142-2 is not in the configuration mode, press the SET/DISPLAY button for longer than 5
seconds until the LEDs of the group display flash.
3. Switch to the slave display by pressing the SET/DISPLAY button briefly to check whether
all the slaves connected to the AS-Interface are indicated.
4. Configure the CP 142-2 by pressing the SET/DISPLAY button for more than 5 seconds
(the LEDs of the group display flash). At the same time, the CP 142-2 is switched to the
protected mode. The “CM” LED goes off.
The “CER” LED also goes off since following configuration, the “expected configuration”
stored on the CP 142-2 matches the stored “actual configuration” on the AS-Interface.
Содержание SIMATIC NET CP 142-2
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