Overview of event management

At a Glance

This synopsis describes event management:

Process		TSX CCY 1128 module	TSX 57 processor
Event source	Enabling events	TSX CCY 1128 module	In the EVT task
Recalibrating the angle and number of cycles	evt_preset_enable %Qr.m.0.10	event buffer memory Note:Saturation of the buffer memory is signaled by bit OVERRUN_EVT. This bit must be read in the event task. (1) x ms for 1 ms, normally if system event management is not saturated.	(* Recalibration *) ! IF evt_preset ... %IWr.m.0.12.2
Switch to angle rollover	evt_ang_enable %Qr.m.0.8		(* ANGLE rollover *) ! IF evt_ang ... %IWr.m.0.12.0
Switch to cycle rollover	evt_turn_enable %Qr.m.0.9		(* Cycle rollover *) ! IF evt_turn ... %IWr.m.0.12.1
Detection of cam	evt_cam_enable %Qr.m.0.13		(CAMS) ! IF evt_cam ... %IWr.m.0.12.5
Capture 0	evt_capt0_enable %Qr.m.0.11		(* Capture 0 *) ! IF evt_capt0 ... %IWr.m.0.12.3
Capture1	evt_capt1_enable %Qr.m.0.12		(* Capture 1 *) ! IF evt_capt1 ... %IWr.m.0.12.4
parts counter full	evt_pieces_full_enable %Qr.m.0.14		(* Parts counter full *) ! IF evt_pieces_full ... %IWr.m.0.12.6

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.

Cam

Logic state which switches to 1 when an angular value in the cycle is overshot and which resets to 0 according to the type of cam.

A cam is systematically associated to one and only one track. Several cams can be associated to one track.

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.