Technical Description and Installation Instructions

1.8.1Status Display

Interpreting the Status Display

The status display is active when no group LEDs are lit.

The status display is the default display in the basic status of the CP 243-2.

Meaning of the LEDs

The LEDs have the following meaning:

Table 1-2

LED (color)

CM (yellow)

AUP (green)

Status

Configuration Mode

Autoprog available

Meaning

This displays the operating mode of the CP 243-2.

S

LED lit:

Configuration mode

S

LED unlit:

Protected mode

The configuration mode is only required when putting the CP 243-2 into operation. In the configuration mode, the CP 243-2 activates all connected AS-i slaves and exchanges data with them. For more information about the configuration mode, refer to Section 1.9.

In the protected mode of the CP 243-2, this indicates that automatic address programming of an AS-i slave is possible. The automatic address programming makes it much easier to exchange a defective AS-i slave on the AS-i cable (for more detailed information refer to Section 6.1).

CER (yellow) Configuration Error

APF (red)

AS-i Power Fail

 

 

PWR (green)

Power

 

 

This LED indicates whether the slave configuration detected on the AS-i cable matches the expected configuration (LPS). If they do not match, the CER LED is lit.

The CER LED is lit in the following situations:

SWhen a configured AS-i slave does not exist on the AS-i cable (for example failure of the slave).

SWhen an AS-i slave exists on the AS-i cable but it was not previously configured.

SWhen a connected AS-i slave has different configuration data (I/O configuration, ID code, extended ID1 code, extended ID2 code) from the AS-i slave configured on the CP 243-2.

SWhen the CP 243-2 is in the offline phase.

This indicates that the voltage supplied by the AS-i power supply unit on the AS-i cable is too low or has failed.

The PWR LED (power) indicates that the CP 243-2 is supplied with power.

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SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

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Siemens CP 243-2 installation instructions Interpreting the Status Display, LED color, Meaning