7
Dealing with Problems / Error Displays
113
CP 343−2 / CP 343−2 P AS−Interface Master
Release 08/2008
C79000−G8976−C149−04
Table 10-1 , continued
Error
Remedy
Possible Cause
The CER display flickers, in other
words a configured slave is lost
sporadically.
Bad contact
Check the electrical connections
of the AS-i slaves.
sporadically.
Interference on the AS-i cable.
Check the correct grounding of
the CP 343-2 module and check
the AS-i cable. Check that the
shield of the AS-i power supply
unit is connected correctly.
The CP 343-2 does not switch
from the configuration mode to
The PLC is in the “RUN” mode.
Switch the PLC to “STOP”.
from the configuration mode to
the protected mode.
The SET button was not pressed
long enough.
Press the SET button for at least
0.5 seconds.
An AS-i slave with address 0 is
connected to the AS-i cable.
The CP 343-2 cannot change to
the protected mode as long as
this slave exists.
Remove the AS-i slave with ad-
dress 0.
The CP 343-2 does not switch
from the protected mode to the
The PLC is in the “RUN” mode.
Switch the PLC to “STOP”.
from the protected mode to the
configuration mode.
The SET button was not pressed
long enough.
Press the SET button for at least
0.5 seconds.
After failure of an AS-i slave, the
“AUP” display remains off.
The CP 343-2 is in the configura-
tion mode.
”Automatic Programming” is not
possible in the configuration
mode.
Program the address of the new
AS-i slave with the address pro-
grammer or using the command
interface of the CP 343-2.
More than one AS-i slave has fai-
led.
Check the AS-i cable.
If “APF” is displayed at the same
time, check the power supply on
the AS-i cable.
If more than one slave is defec-
tive, program the address on the
replaced slaves using the addres-
sing unit.
The CP 343-2 has not detected
configured AS-i slaves.
Remove the unconfigured AS-i
slaves from the AS-i cable.
The AUTO_ADDRESS_ENABLE
flag is not set.
Set the bit with the appropriate
FC calls
Automatic address programming
is unsuccessful although the
“AUP” display is lit.
The configuration data (I/O confi-
guration, ID code) of the replaced
AS-i slave do not match the va-
lues of the original slave.
Check whether the correct “repla-
cement slave” was used.
Compare the information from the
manufacturer about configuration
data.
If you want to replace the original
slave with a different type, assign
the address with the addressing
unit and reconfigure the CP 343-2
module (with the SET button).
The replaced AS-i slave does not
have the address “ZERO”.
Set the address of the replaced
slave with the addressing unit.
