Setting up channels for other sensors

About this topic

In the Manage IO dialog box, you can:

•	Add new sensors.

•	Specify when the sensor is tripped.

•	Specify whether a detection event should be recorded in the log file, display an error message, or both.

This topic explains how to assign I/O channels to sensors.

Managing sensor signals

To set up channels for sensor signals:

1	In the Manage IO dialog box, click the Sensors tab.

2	Click New to add a sensor.

3	Specify the following:

 

 

Parameter	Description
Digital Input Name	The digital input signal used by the sensor. Click the field to display the list of channels, and then select the desired channel. If the sensor name does not appear in the list, make sure you have configured it in ACU Diagnostics.
Sensor Tripped When	The state that indicates the sensor is tripped. Select one of the following: high-voltage signal (High) or low-voltage signal (Low). The system checks the sensor only during protocol runs. The sensor trips at the specified voltage signal, not the change in the voltage signal. For example, if the sensor should trip when the voltage signal is high, and signal is already high when you start the protocol, the sensor will automatically be tripped.
Results in	The software action when the sensor is tripped. Select one of the following: • Log entry. Records detection events in the log file. • Message box. Pauses the run and displays an error message when a detection event occurs. The error message explains which sensor is tripped. You can add a custom message by typing the desired text in the Custom Error String field. In the error message dialog box, you have the following options: – Fix the problem and resume the run. – Ignore the sensor (turn it off) and resume the run. The sensor will be turned on again after the protocol run is finished. • Script. Runs the specified JavaScript when the sensor is tripped. You can specify the script in the Execute Script box.
User-Specified String	The custom text to be displayed in the error message dialog box. Type the desired text in this field. This field is available only if you have selected VWorks error message from the Results in list.
Execute Script	The standard JavaScript or predefined JavaScript functions to run when the sensor is tripped. Type the script in the box. This box is only active if you selected Script in the Results in list.

4	When you are finished, click OK to save the changes and return to the VWorks window.

Related information

 

For information about...	See...
Automation Control Unit	Automation Control Unit User Guide
Interlock bypass mode description	Automation Control Unit User Guide
Writing protocols	Creating a protocol: basic procedure
Adding I/O-handling tasks	Setting parameters for I/O-handling tasks