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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
protocol.
Read this topic if you are an administrator or technician responsible for
creating 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:
You 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
