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Technical Description
18
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04
Meaning of the Indicators and Operator Controls:
LED
Meaning
SF
System fault.
The LED is lit when:
S
The CP 343-2 is in the protected mode and an AS-i configuration error has
occurred (for example slave failed)
S
The CP detects an internal fault (for example EEPROM defective)
S
In response to a button command, the CP cannot execute the required mode
change at the present time (for example, because there is a slave with
address 0).
RUN
Indicates that the CP has started up correctly.
APF
AS-i Power Fail.
This indicates that the voltage supplied to the AS-i cable by the AS-i power
supply unit is too low or there is a complete power outage.
CER
Configuration Error.
This LED indicates whether the slave configuration detected on the AS-i cable
matches the configuration configured on the CP (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 a slave exists on the AS-i cable but it has not been configured
S
When an attached slave has different configuration data (I/O configuration, ID code)
from the slave configured on the CP.
S
When the CP is in the offline phase.
AUP
Autoprog available.
In the protected mode of the CP, this indicates that automatic address
programming of a slave is possible. Automatic address programming makes it
easier to replace a defective slave on the AS-i cable (for more detailed
information, see Chapter 5.2.12).
CM
Configuration Mode.
This LED indicates the mode.
Indicator on: configuration mode
Indicator on: protected mode
