Siemens CP 243-2 - Manual (Page 20)

Technical Description and Installation Instructions
1-12
SIMATIC NET CP 243-2 AS-i Master
C79000-G8976-C142/02
1.8.1 Status 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) Status Meaning
CM (yellow) Configuration
Mode 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.
AUP (green) Autoprog
available 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 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:
S
When a configured AS-i slave does not exist on the AS-i cable (for
example failure of the slave).
S
When an AS-i slave exists on the AS-i cable but it was not
previously configured.
S
When 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.
S
When the CP 243-2 is in the offline phase.
APF (red) AS-i Power Fail This indicates that the voltage supplied by the AS-i power supply unit
on the AS-i cable is too low or has failed.
PWR (green) Power The PWR LED (power) indicates that the CP 243-2 is supplied with
power.