The counting application makes it possible to carry out fast counting using couplers, Control Expert screens and specialized language objects. The general operation of the expert modules, also called couplers, is described in the Introduction to TSX CTY2A, TSX CTY4A and TSX CTY2C Coupler Operation section, and details about their functions is described in the Description of the standard functions of TSX CTY2A/4A/2C counting modules section.

The physical context in which the counting will be carried out must be defined (rack, power supply, processor, modules or devices,...) during installation, then the software installation must take place.

This second aspect is realized from the different Control Expert editors: