Microscan MS-4 User's Guide download pdf (Page 28)

Chapter 1: Introduction

Microscan MS-3 Laser Scanner Device Driver User Guide

Related topics

Using JavaScript to set task parameters

About this topic JavaScript programs (scripts) can be used to change the parameters of a

protocol task immediately before it is scheduled. This extends the

capability of VWorks or BenchWorks software because the parameters

can be changed dynamically during a run, based on the following:

❑ Information passed from an external source, such as a database

❑ The number of times the protocol has cycled

❑ Feedback on changing conditions during the run

This topic describes the use of JavaScript to set task parameters in a

otocol.

Read this topic if you are an administrator or technician responsible for

reating VWorks or BenchWorks software protocols and want to add

functionality to a task using JavaScript.

Where scripts are

written

Scripts can be written in two ways:

❑ Directly into the box in the Advanced Settings tab of the Task

Parameters toolbar

❑ As an external file that is located by clicking Browse in the

Advanced Settings tab and navigating to its location on the hard

drive

Note: Y

ou can also call an external file by embedding the “open( )”

function in the box.

The following screenshot displays a short script that prints the

parameters of a task to the log toolbar, just before the task runs. In this

case, the script is written directly in the Advanced Settings box.

For information about... See...

Device drivers “About device drivers” on page 7

Setting common device properties “Setting the properties for a device” on

page 16

Adding a device to the device

manager

“Adding devices” on page 10

Creating protocols

❑ VWorks Version 3 Automation

Control User Guide

❑ BenchWorks Automation Control

User Guide

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Microscan MS-4 User's Guide Page 28