Aligning an Input Channel

At a Glance

The procedure for aligning an input is used to add an offset value to the value measured by this input, in order to compensate for a sensor shift (e.g. to adjust the measurement of a Pt100 probe immersed in a bucket of ice to 0°C for adjustment).

Procedure

The table below shows the procedure for aligning an input channel:

Step	Action for a channel
1	Access the debug screen.
2	Select the channel to be aligned in the Display zone and double-click in the corresponding box in the Alignment column. Result: The Adjust channel dialog box appears.
3	Click on the box in the Target value field of the Alignment dialog box and enter the new alignment value.
4	Confirm this new alignment value by clicking on the OK button.
5	Close the Adjust channel dialog box.

Notes

NOTE: When the alignment offset is modified for each program with the WRITE_PARAM instruction, its value must be between +1500 and -1500.

NOTE: The calculated offset value only takes into account the "keyboard" commands given by the user. Running the program (RUN), which also controls the alignment, simultaneously, renders the offset invalid.