Configuring acquisition parameters

(Original Document)

Role

parameters allows you to:

select the type of encoder (incremental or absolute) and define its characteristics
select the acquisition mode functions
- Reading format
- Recalibration
- Capture
- Unit of speed

Procedure

The following table describes the operations to be performed:

Step	Action
1	In the browser, double-click on Acquisition. Result:
2	Select the field to be modified.

Configuration

The configuration gathers together the data which characterizes the machine (invariant) and which is necessary for the TSX CCY 1128 module to operate.

All this information is stored in the PLC %KW constants zone. The PLC application cannot modify them.

Acquisition

Module functions that are used to calculate the position reading of the machine.

Encoder

Position sensor accepted by the module It can be incremental, SSI absolute or parallel (via Telefast ABE 7CPA11).

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.

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.