Calibrating the TSX AEY 810 Module
(Original Document)
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At a Glance
Calibration is performed globally for the module on channel 0. It is advisable to calibrate the module outside the application. Calibration can be performed with the PLC task linked to the channel in RUN or STOP modes.
Precautions
When in calibration mode, measurements for all channels in the module are declared invalid (%IWr.m.c.1.2 bit = 1), filtering and alignments are prevented and channel acquisition cycles may be lengthened.
As inputs other than channel 0 will not be acquired during calibration, the value transmitted to the application for these other channels is the last value that was measured before switching to calibration.
Procedure
The following table shows the module calibration procedure:
Step
Action
1
Access the calibration adjustment screen
2
Double click on channel 0.
Result: A question appears ‘Do you wish to switch to recalibration mode?’.
3
Reply to this question with Yes.
Result: The calibration window appears.
4
Connect a reference voltage on the voltage input of channel 0, according to the range to be calibrated:
  • reference voltage = 10 V (20 ppm precision) in order to calibrate the module on the +/-10 V and 0..10 V ranges,
  • reference voltage = 5 V (20 ppm precision) in order to calibrate the module on the 0..5 V, 1..5 V, 0..20 mA and 4..20 mA ranges,
Caution: the reference 5 V is used to recalibrate the whole measurement channel for ranges 0..20 mA and 4..20 mA, with the exception of the 250 Ohm current shunt situated on the current entry.
5
Once the reference has been connected to the voltage input (e.g. 10 V), use the Reference drop-down list box to select this value. Wait, if necessary, for the reference voltage connected to stabilize, then confirm the selection using the OK command button. The ranges linked to this reference (e.g. +/-10 V and 0..10 V) are then calibrated automatically.
6
Calibrate the module for other ranges, if applicable.
the Return to Factory Parameters command button cancels all previous calibrations, and return to the original calibration settings configured in the factory.
7
Press the Save command button, in order to recognize and save the new calibration in the module. If you exit the calibration screen without saving, a message is displayed indicating that the new calibration values will be lost ..