DFE TA500-EIP, Инструкция по эксплуатации, Страница: 17 / 30

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While the calibration weight is still hanging, the tension percent reading shall correspond to the calibration per-
centage. In the example above, the TensionPercent parameter is read as 25.0 as the register holds the tension
value with 1 decimal place format. The CalTension parameter holds the calibrated tension value with 2 decimal
places format. The active Units and Range can be verified as well. This page does not auto refresh, and re-
fresh should be done so manually using the refresh button.
If the calibration command must be sent again, be sure to set the Command to “No Command”
before re-sending the calibration command as commands are only processed on transition.
4.2 CALIBRATION USING THE ETHERNET/IP™ INTERFACE
4.2.1 In program Calibration
Using Rockwell Automation Studio 5000 version 20 and above. Be sure that you have a valid EDS file installed
for the TA500 and that you have added the TA500 module to your project. See the section Installing the EDS
File and Adding the Module for more information if needed.
When the module is properly installed, Tags will automatically be assigned in Studio5000 environment to allow
easy access to the TA500 registers. For calibration we will use the MOV instruction to copy command instruc-
tion values to the TA500:0.COMMAND Register and we can use the TA500:I.Command_Processed bit located
in the TA500:I.STATUS_BITS register to identify when the command is complete as the TA500:0.COMMAND
should be cleared or set to zero when no command is requested.
Below is a simple ladder logic example of a method exercising commands necessary for calibration of the
TA500 from within a program. This can be useful if the designer wants to implement calibration or commission-
ing process from within a program.
The calibration process is identical to previously discussed calibration methods. Where, as always, the ampli-
fier should be zeroed with no weight hanging on the load cells and calibrated with a weight equal to 10% or
25% of the full weight.