The High-Speed Counter Module, Catalog Number 1746-HSCE is an SLC 500 family
compatible device except with the 1747-ASB Remote I/O Adapter Module. It can be
used with SLC™ 5/02 (and above) processors.
The module’s bidirectional counting ability allows it to detect movement in either
direction. In addition, x2 and x4 counting modes are provided to fully use the
capabilities of high-resolution quadrature encoders.
High-speed inputs from quadrature encoders and various high-speed switches are
supported. Accepting input pulse frequencies of up to 50k Hz allows precise
control of fast motions.
In addition, an Accumulated Counter, the module provides a Rate Counter to
determine Rate Measurement by indicating the pulse input frequency in Hz. (See
the block diagram on page 6.) The Rate Measurement is determined by
accumulating input pulses over a fixed period of time. You set the Rate Period to
best match your application requirements.
Background Rate calculation is provided in Sequencer and Range Modes. This
operation accepts input rates up to 32,767 Hz. The dynamically configurable Rate
Period ranges from 10 ms to 2.55 seconds.
