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B8976111/02
2.1.4.2 Status Display of the CP 142-2 (all group LEDs off)
SF
(red)
APF
(red)
CER
(yellow)
AUP
(green)
CM
(yellow)
The configuration mode is only required when installing and starting up the CP 142-2. In the
configuration mode, the CP 142-2 activates all connected slaves and exchanges data with them. For
more detailed information about the configuration mode / protected mode, refer to Section 2.1.4.6.
System error. The LED is lit when:
the CP 142-2 is in the protected mode and an AS-i configuration error
±
has occurred (for example slave failed)
the CP 142-2 detects an internal fault (for example EEPROM defective)
±
The CP 142-2 cannot change to the mode requested with a control
±
button (for example a slave exists with address 0).
Briefly when changing to the protected mode
±
When the CP is in the protected mode in the offline phase
±
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.
Configuration Error. The LED is lit when the slave configuration detected on
the AS-i cable deviates from the desired configuration set on the CP 142-2
(LPS).
The CER indicator is lit in the following situations:
when a configured AS-i slave does not exist on the AS-i cable (for
±
example slave failed)
when a slave exists on the AS-i cable but it has not been configured
±
when a connected slave has configuration data (I/O configuration, ID
±
code) that are different from those of the slave configured on the
CP 142-2
briefly when changing to the protected mode
±
When the CP is in the offline phase.
±
Autoprog available. In the protected mode of the CP 142-2, 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).
Configuration Mode. This LED indicates the mode.
Indicator lit:
configuration mode
Indicator off: protected mode
2-7
AS-i Master Module CP 142-2
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