Manual BG41/BG42/BG43 Interface modules
Rev. 99/49 3-33
3.2.8 Counter module (MD18,19)
3.2.8.1 General
The counter module is available in the configurations 24V (MD18) and 5V (MD19).
Three independant counters are to be found on the module, 2 of which can be cascaded.
The counter modules in their delivery state are so adjusted, that 3 independant 16-bit counters are
available. (See the positioning of the plug connectors X1, X2 and X3, as drawn below)
If counter 1 and counter 2 are to be cascaded, the jumpers X1 and X2 are to be replugged into
position "32".
With the plug connectors from X4 to X6, one can alternatively place Carry" or "Borrow" with each
counter on the yellow LEDs and the respective switch outputs.
•= Carry Change from the negative to the positive counter area.
•= Borrow Change from the positive to the negative counter area.
Fig. 3-32: Structure of the 5V counter module
Eight different operating modes are available for connecting incremental or path encoders:
•= Normal up and down counter
•= Measurement of the pulse-width
•= Measurement of the frequency
•= 5 different operating modes for out-of-phase impulses
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