Keba Kemro MM 240/A - 6.8 Latch function Zero pulse

another latch event (edge change) occurs before the next update, the infor-
mation of the first event will be retained.
A time stamp on each latch event is recorded within the update cycle. The time
stamp has a resolution of 1µs. This time stamp is unique up to an update cycle
of 65 ms. The possibility of an overflow exists for longer cycle times of the
application program. Update cycles of the incremental encoder inputs of
>65ms should thus be avoided
The latch inputs are firmly assigned to the incremental encoder inputs: INC0 -
DI0, INC1 - DI1.
Information
To avoid faulty triggering of the latch inputs, attention should be given that
the wiring is done correctly.
6.8 Latch function Zero pulse
Another latch function is available (zeroLatchMode=1) to record the counter
status when a Zero pulse occurs at an incremental encoder.
The current counter status is recorded when the Zero pulse occurs. When the
counter status is read out at the next update cycle the trigger will be activated
again.
6.9 Simulation mode
During simulation mode ( simulate=1), the transducer signals are simulated by
internal software test signals and evaluated instead of the transducer signals.
The simulation mode can be selected through the configuration. The applica-
tion has to provide the actual values, which are then read out via the standard
interface.
This way application tests can be conducted without the incremental encoder
being connected.
Functional description MM 240/A
© KEBA 2010
Project engineering manual V1.0824