Selection of the bit for reversing the direction of rotation
In the same way as the start / run input, a bit for reversing the counting direction can also
be defined.
If the bit is set, counting is reversed in both timer and event counter mode.
The counter is limited downwards to zero.
do38 direction source parameter offers the same setting options as do32 run source pa-
rameter
do39 direction source bit is identical with do33 run source bit.
Evaluation of the counter
The output value of the counter/counters is displayed for diagnostic purposes as array in
the ru parameters.
Depending on the parameterisation, the displayed value means the number of ms or
events. In order to use the counters, the output values must be available as comparison
operand in do01 flag operand A and do02 flag operand B.
The timer levels can only be compared with do06 flag level 2
➢ Due to the value range, the timer levels cannot be converted to a
value with 4 decimal places. A comparison with do05 flag level 1
is not possible. Since the timer value does not contain any deci-
mal places, the comparison with do06 is also always sufficient.
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