Manual BG41/BG42/BG43 Software
Rev. 99/49 4-31
ZTYP
The telegram’s target type is to be entered into the PLC.
Possible target types (data types) are:
DB for data block
EB for the process image of the inputs
AB for the process image of the outputs
MB for flag bytes
Z for counter words
T for timer words
Other details result in the parametrizing error message (PAFE) 21.
DBNR
If the target type DB is selected, the DBNR is to be entered in the right byte.
Valid area: 2...255. If this area is violated, it results in PAFE: 17. If the given DB
does not exist, the data handling block will therefore register PAFE: 19.
BWNR
Byte/word number. By means of these operands it is determined, from which
word, e.g. data word of the given DB, or from which byte, e.g. AB, a received
telegram should be filed.
MXBW
Maximum number of bytes/words. With these operands it is determined, what the
maximum length of a telegram should be. By means of the operands BWNR and
MXBW, the data handling block examines if the target area, e.g. a DB, is long
enough. If this is not the case, the data handling block registers PAFE: 20.
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