Handling with VIPA data handling blocks Manual BG41/BG42/BG43
4-60 Rev. 99/49
ZTYP
The telegram’s target type is to be entered into the PLC.
Possible target types (data types) are:
DB for data handling block
DX for data handling block development
EB for process image of inputs
AB for process image of oputputs
MB for flag bytes
Z for counter words
T for timer words
Other details result in a parametrizing error message (PAFE) 21.
DBNR
If the target type DB or DX 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 a
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. The maximum length of a telegram is
determined by these operands. 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 PAFE: 20 is registered.
To Next Page
Loading...
