Specific Functions of Discrete Modules: Input Event Management

At a Glance

Modules TSX DEY 16FK and TSX DMY 28FK can be used to configure up to 16 event inputs. These inputs allow events (Evt) to be taken into account, and ensure that they are immediately processed by the processor (uninterrupted processing).

Description

Event processing priority is given to the number 0. The event 0 is solely associated to channel 0.

Event processing can be triggered:

on a rising edge (from 0 to 1);
on a falling edge (from 1 to 0) of the associated input;

When two edges are detected simultaneously on a module, the events are processed according to channel number, in ascending order.

The edge recurrence time on each input, or the pulse width on an input programmed in FM + FD, must correspond to those shown in the following diagram:

Given that

T recurrence or T width > 0.25 ms + (0.25 x number of module Evts);

Max. Evt frequency = 1 kHz / number of module Evts;

Max. number of Evts in burst = 100 Evts per 100 ms.