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03/03
6.2
Error Messages of the CP 243-1 IT
This section lists the error messages of the CP 243-1 which are of primary impor-
tance to the user. All other error messages indicate special internal errors of the
CP 243-1 IT. If such error messages occur, please contact your service hotline.
Caution
The module must be turned off and on again when a module error/system error oc-
curs.
The CP 243-1 IT uses two different routines to report errors.
• As return value of a subprogram
Errors are reported here with the return value "Error." This parameter can be
type BYTE or type WORD depending on which subprogram is involved.
• Error codes returned via the SM memory area of the S7-200 CPU
Which SM memory area is being used currently depends on the position where
your CP 243-1 IT is connected on the S7-200 system (see Table 5). Depending
on the type of error, the following bytes are used for the error message in the
current SM area of your CP 243-1 IT.
− Global errors and general messages are transferred at byte offset 20 and
21. They are interpreted as a word (SMW). The error or message codes
transmitted here are deleted again after a maximum of 60 seconds. This rou-
tine prevents outdated error or message codes from blocking these two
bytes for a longer period of time.
− Channel-specific errors are transferred in the following bytes based on the
related S7 channel.
Byte offset 25
Byte offset 26
Byte offset 27
Byte offset 28
Byte offset 29
Byte offset 30
Byte offset 31
Byte offset 32
− Command-specific errors are returned in the byte with offset 33.
− E-mail-specific errors are returned in the byte with offset 34.
− The FTP client reports errors with the byte with offset 35.
− Errors on the FTP server are returned with the byte with offset 36.
− The HTTP server reports errors with the byte with offset 37.
CP 243-1 IT
J31069-D0429-U001-A0-7618
For channel 0
For channel 1
For channel 2
For channel 3
For channel 4
For channel 5
For channel 6
For channel 7
Diagnosis
111
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