Dealing with Problems / Error Displays

Table 6-1 Error Displays of the CP 243-2 / Remedying Errors

Error

Possible Cause

 

 

Remedy

The CP 243-2 does not switch from the configuration mode to the protected mode.

The CP 243-2 does not switch from the protected mode to the configuration mode.

The S7-200 CPU is in the ªRUNº mode.

The SET button was not pressed long enough.

A slave with address ª0º is con- nected to the AS-Interface cable. The CP 243-2 cannot change to the protected mode as long as this slave exists.

The S7-200 CPU is in the ªRUNº mode.

Button not pressed long enough

Switch the S7-200 CPU to ªSTOPº. This sets the PLC_RUN bit to 0.

Press the button for at least 0.5 seconds.

Remove the slave with address 0.

Switch the S7-200 CPU to ªSTOPº.

This sets the

PLC_RUN bit to `0'.

Press the button for at least 0.5 seconds.

After failure of an AS-Interface slave, the ªAUPº display remains off.

The CP 243-2 is in the configura- tion mode.

More than one AS-Interface slave has failed.

The CP 243-2 has not detected configured AS-Interface slaves.

ªAutomatic programmingº is not possible in the configuration mode.

Program the address of the new AS-Interface slave with the ad- dressing unit.

Check the AS-Interface cable.

If ªAPFº is displayed at the same time, check the power supply on the AS-Interface cable.

If more than one AS-Interface slave is defective, program the ad- dress on the replaced AS-Inter- face slaves using the addressing unit.

Remove the unconfigured AS-In- terface slaves from the AS-Inter- face cable.

The AUTO_ADDR_ENABLE flag is not set.

Set the bit with the appropriate commands or by pressing the SET button during AS-i Power Fail.

6-4

SIMATIC NET CP 243-2 AS-i Master

C79000-G8976-C142/02

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Siemens CP 243-2 installation instructions Error Possible Cause Remedy