Advantech PCI-1710 Guide de l'utilisateur télécharger pdf (Page 32)

2.3.4 Tutorial 4. Error handling for error message

The purpose of this tutorial is to teach you how to apply the error handling function (error in and

error out) of each Advantech VI to debug your program.

1. First, you can open “Tutor2.vi” to continue with Tutorial 2 “Get voltage input from PCL-818L”.

If you did not do Tutorial 2, please refer to Tutorial 2 to implement “Tutor2.vi”.

2. Wire the error out parameter of the DeviceOpen VI to the error in parameter of the

DIOReadPortByte VI. Additionally, wire the error out parameter of the DIOReadPortByte VI

to the error in parameter of the DeviceClose VI.

3. Switch to Front Panel. Add a String Indicator VI to Front Panel for displaying error messages

during error handling.

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Advantech PCI-1710 Guide de l'utilisateur Page 32