Technical Description and Installation Instructions

Note

Changing from the configuration mode to the protected mode is only possible when there is no slave with address ª0º connected to the AS-Interface. If a slave ª0º is connected, the ªSFº LED lights up when the SET button is pressed.

Preparing to Configure

Make sure that the following situation applies:

SThe S7-22x CPU must be set to STOP (PLC_RUN=0).

SThe CP 243-2 and all AS-i slaves must be connected to the AS-Interface and supplied with power by the AS-i power supply.

Configuring

1.Press the DISPLAY button to set the CP 243-2 display to the ªstatus displayº mode (initial status).

2.Check whether the CP 243-2 is in the ªconfiguration modeº. (ºCMº LED lit ). If not, change the CP 243-2 to the configuration mode using the SET button.

3.By changing to the slave display with the DISPLAY button, you can check whether all the slaves connected to the AS-Interface exist.

4.Press the SET button. The CP 243-2 is configured.

At the same time, the CP 243-2 is changed to the protected mode; the ªCMº LED goes off.

The ªCERº LED also goes off since following configuration, the ªexpected configurationº stored on the CP 243-2 matches the ªactual configurationº on the AS-Interface.

Note

Configuring the CP 243-2 during an AS-Interface Power Fail (for example when the AS-i power supply unit is turned off or when the CP 243-2 is not connected to the AS-Interface) resets the configuration of the CP 243-2. This has the following results:

SNo AS-i slaves are configured;

SAll AS-i slave parameters are set;

SAutomatic address programming is activated (bit AUTO_ADDRESS_ENABLE = 1).

SIMATIC NET CP 243-2 AS-i Master

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C79000-G8976-C142/02

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Siemens CP 243-2 installation instructions Preparing to Configure, Configuring