Siemens SIMATIC C7-613 Manual page 168

Error
ID(W#16#...)
8231
8234
B-8
Cause
The access type of the
acknowledgement area pointer
cannot be interpreted.
The message area and
acknowledgement area lengths
are not identical.
Remedy
Use an area pointer of the following
types: BOOL; BYTE; WORD; INT;
DWORD; DINT
For example:
P#M20.0 BOOL 128,
P#M20.0 BYTE 16,
P#M20.0 WORD 8,
P#M20.0 INT 8,
P#M20.0 DWORD 4,
P#M20.0 DINT 4
Pay attention to the maximum length
information.
Adjust the address information
according to the length information in
the message area.
For example, from
EVENTS := P#M 20.0 BOOL 12
ACKS := P#M 24.0 BOOL 15
to
EVENTS := P#M 20.0 BOOL 12
ACKS := P#M 24.0 BOOL 12
C7-613 Control System
A5E00138934-03