General time-division performance characteristics

Calling an event task

Diagram of an event task call

The module includes 7 event sources (, switching, ....).

The calling of event tasks is limited to a maximum of 1 event per ms.

Only one type of event is sent at a time to the system.

In the case of one event

The start of the event task is executed no more than 3 ms after the real event (e.g.: switch to cycle modulo).

In the case of several simultaneous events

The module integrates a buffer that allows the storing up to 7 events awaiting transmission to the system. The events will be sent in their order of arrival (1 per ms). This, therefore, increases the reaction time.

Table

Description of the functions

Function	Comments	Value
Counter	Permitted frequency	500Khz in x1 250Khz in x4
Counter	Activation of the event task on switching of cycle	< 3 ms
Recalibration	Recalibration of counter on Z marker pulse	< 1 micro second
	Recalibration of counter on Irec	< 50 micro seconds
	Event task activation	< 3 ms
Cam function	Refreshing output	50 micro seconds up to 16 cams 100 micro seconds up to 32 cams 200 micro seconds up to 128 cams
	Updating the correction values (anticipation)	< 4ms
	Activating the event task (cam, parts counter)	< 3 ms
Implicit interface	Influence of the module on the processor cycle time
	Refreshing %I and %IW	< 1 ms
	Recognizing %Q and %QW	< 1 ms
Explicit interface	WRITE_PARAM	300 ms
	SAVE_PARAM	300 ms
	RESTORE	300 ms
	READ_STS	immediate (1)
	MOD_PARAM	send: 20 ms (2)
	MOD_CAM	send: 20 ms (2)
	MOD_TRACK	send: 20 ms (2)
	TRF_RECIPE	300 ms
	DETAIL_OBJECT	immediate (1)
Additional cycle time	The cycle time has no effect on the output reaction time	1 ms

(1) There is no access to the module / Execution time is included in the task execution.

(2) For GET and READ it is immediate as in (1).

Capture

A module function that is used to sample the position value of the axis on detection of a precise event (input Icapt0 and/or Icapt1). The capture has no impact on the values of the axis nor on the cam processor.

The implementation of this function allows the application to manage the process better, for example: in monitoring the number of pulses sent by the encoder, the size of the parts, the axis slip, the angle of arrival of the parts.

Recalibration

This is the module function which is used to adjust the axis in relation to the machine zero or to synchronize the axis in relation to the arrival of a part.

Recalibration forces the position reading to a value which is predefined by the "recalibration value" parameter (included in the pulse field of the cycle).

The module allows recalibration to be carried out systematically for each cycle or for only one cycle. This recalibration is always conditioned to the IREC input.