Manual BG41/BG42/BG43 Interface modules
Rev. 99/49 3-39
3.2.8.10 FB11 (SCHREIBEN), give counter a default value
With FB11 (SCHREIBEN) a certain counter can be given a default value.
The following parameters are to be transferred when loading FB11:
Des. Format Explanation
ADR KH building block’s absolute base
address
KNR KF Number of channels
ZNR KF Counter number
WERT W value to be entered (16 Bit)
NEUS M New start bit
Tab. 3-6: List of parameters for the loading of FB11
Due to time reasons this function block does not examine the reliability of the
formal operands KNR and the validity of the counter number.
If the write numerical value is taken out of a data word, the correspponding
data block must be opened before loading FB 11 with A DBxx.
The following details are necessary for the abovementioned parameters:
ADR
Input of the physical start address, under which the building block can be
accessed by the PLC. This start address can be set with the DIL switches S1 and
S2 (see chapter 5).
KNR
Number of channels, to which the counter module is connected. For the building
blocks the following inputs are possible:
BG41 - 1
BG42 - 1 or 2
BG43 -1,2or3
ZNR
Number of counters on the module, which are to be given a default value. Each
counter module has three counters.
The inputs 1, 2 or 3 are therefore permitted.
WERT
Gives the number of data or flag words, in which the value to be transferred to the
counter is filed.
NEUS
As long as the bit is at the signal stand is at 1, the processing of the function
block is discontinued.
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