Product Summary

The CTI 2502 Two-Channel High Speed Counter Input Module is a member of Control

Technology’s family of I/O modules compatible with CTI 2500 Series™ and Simatic® 505

programmable controllers. It is designed to count pulses on the inputs and return the

current count and status to the controller.

Features

The 2502 provides two independent high-speed counter channels. Each channel includes

the following features.

 Four counter modes:

 Pulse counter

 Quadrature counter modes: 1X, 2X, 4X

 A 10 kHz count rate with a minimum pulse width of 25 s.

 Four inputs:

 two count inputs

 reset

 inhibit

 Two field outputs, each controlled by a separate programmable preset.

 LED indicators display the status of the A and B count inputs, and of Y1 and Y2

outputs.

 All inputs may be sinking or sourcing (with external 24 VDC power supply).