Nematron Pointe Controller - Manual (Page 271)

Pointe Controller User Guide Appendix A: OptiLogic Technical Specifications
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To configure Input LS, click the to the right and select a tag from the
pop-up menu. Each tag can be used only once.
NOTE: These inputs do not necessarily need to be mapped to tags in Logic
Memory for the pulse counter itself to function. The counter will still count pulses
and write out the counter value, as configured in the Counter tab (below).
However, it is sometimes useful to have access to these I/O points independent of
the counter function.
Counter tab
General configuration parameters for pulse counter.
Counter Type – The mode in which the counter will operate (see above).
Options include:
o Pulse/Direction (default) – In this mode, pulses are counted by
Input A and the counter direction is determined by Input B.
o Up/Down Count – In this mode, pulses received by Input A
increment the counter and pulses received by Input B
decrement the counter.
o Quadrature – In this mode, counting is determined by the phase
angle between Input A and Input B. If A leads B, then the
counter increments. If B leads A, then the counter decrements.
To configure Counter Type, click the to the right and select a mode
from the pop-up menu.
Frequency Selection – The frequency at which pulses will be received
and counted. Options include:
o Up to 30 KHz – The maximum pulse frequency will be less than
or equal to 30 KHz.