NE212
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5.1 Main counter operating modes
The operating modes are described below.
Step preset
On reaching a preset value, the counter continues to count to
the next preset value. Preset values are always processed in
the sequence: preset value 1, preset value 2. Any values can be
chosen.Automatic resetting to the start count value can be obtained
with the second preset value. External or manual resetting can be
carried out at any time.
Main preset
On reaching the individual preset values, the counter is reset to
the start count value. Preset values are always processed in the
sequence: preset value 1, preset value 2. Automatic resetting to the
start count value can be obtained with the P2. External or manual
resetting can be carried out at any time.
Parallel comparison
On reaching the preset value, the outputs switch to continuous
signals if the respective preset value in either counting direction
is exceeded. Any preset value can be chosen; they are processed
independently of each other. Pulse signals cannot be given in the
parallel comparison modes.
P1-Self-adjusting preset
Preset value P1 serves as a preliminary signal and functions as a
self-adjusting preset. The preliminary signal always switches to the
input value before the final signal is given. Any second preset value
can be chosen.
Zero contact
The output signal B1 from the batch counter can be assigned to the
main counter as a zero contact in every operating mode (line 39).
The batch counter then has no output signal.
5.2 Counting modes for main/totalizing counter (input modes)
This counter is able to count in either direction. The counting direc-
tion is independent of the adding or subtracting operation mode. The
exception to this is totalizing (A+B).
Up/down counting with
one counting track A and an
external up/down signal on
track B
Track A
Up/Down
Counting
Differential counting, track A
adding, track B subtracting
(A-B)
Any signal duration and time.
Track A
Track B
Counting