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. 

The module’s four current sink (open collector) outputs can be controlled in the 

user program or the module.

Control of the counter reset is configured through user-set parameters. The counter 

can be reset from any combination of the Z input, Limit Switch input, or Soft Reset control bits.

Module operation is determined by selections made in the Setup and Control Word 

(M0:e.1). Setting the Function Control bit to 1 triggers the module to start the 

proper pulse counter, rate measurement, and output control functions. Many 

parameters are dynamic and can be changed without disrupting counter operation. 

The module’s block diagram is shown on page 6. Inputs from the terminal block 

enter the diagram at the left, outputs to the terminal block exit at the right. M0 and 

Output file parameters from the SLC enter the logic blocks from the top. Input file 

data to the SLC exit the logic blocks from the bottom.