• One-channel intelligent counter module for simple counting tasks
• For direct connection of incremental encoders
• Comparison function with 2 specifiable comparison values
• Integrated digital outputs to output the response upon reaching the comparison value.
• Operating modes:
  • Continuous counting
  • One-shot counting
  • Periodic counting
• Special functions:
  • Set counter
  • Latch counter
• Start/stop counter with gate function
  

Note:

Incremental encoders and pre-assembled connecting cables for counting and positioning functions are offered under SIMODRIVE Sensor or Motion Connect 500.

http://www.siemens.com/simatic-technology