TestWare-SX Digital Input Detector

This type of process produces an event and should be sequenced in parallel with a command process. Use this process to trigger other processes when an external device issues a signal.

Prerequisites

Using a digital input detector process requires the following:

Proper cabling from the external devices to connector J54.

Jumpers X1 - X8 on the Model 490.50 Processor Module must be configured for the each type of input signal.

How it works

A digital input detector process monitors up to 8 digital inputs from the rear panel connector J54. The cable may have more than one destination. The process ends when the proper signal is detected by any of the eight input channels. The inputs can be configured for relay contacts or logic signals.

More Information

The Digital Input Detector Design window names the process and sequences it in a test template.

The Digital Input Detector Parameters window defines the characteristics of the process.


Digital Input Detector Design Window

This window specifies when the process starts and ends. The information in this window is saved with the test template.

Using the window

Use this window to designate a location in a template for a process that monitors status signals from external devices.

1	Name the process with the Label entry field.

2	Select a Start Trigger to start monitoring digital inputs. This process should be sequenced in parallel with a command process

3	Select an End Trigger to stop the process.

More Information

Detailed information about this process can be found in Chapter 6 of the 790.10 TestWare-SX Application Manual.

Go to How it works for an overview of the process.

After you complete this window, you can double-click the name of this process in the Edit Template window to display the Digital Input Detector Parameters window. This allows you to assign parameters to the default procedure.


Digital Input Detector Parameters Window

You must create a data input detector process in a template with the Digital Input Detector Design window before you can access this window. The information in this window is saved with the test procedure.

Use this window to establish the detector requirements for each of the 8 digital inputs from the rear panel connector J54.

Channel

You must know which device is connected to each channel. Refer to the Cable chapter in the Installation manual for the connections to J54.

You must also know how each channel input becomes active so you can configure the processor module jumpers correctly Each channel of the digital input detector can be configured to monitor a logic signal or relay contacts. Jumpers X1 - X8 on the Model 490.50 Processor module configures each of the 8 inputs for a logic or contact type of signal. Each jumper corresponds with the digital input channel of the same number. Refer to the Hardware chapter in the Installation manual to set the jumpers.

Once the hardware is configured properly you can select the appropriate direction option for each channel.

Direction Options

Each channel can become active with different signal transitions You should know how the external device becomes active to set its channel transition.

Low/High Transition = switch opens

High/Low Transition = switch closes

Either Transition = switch opens or closes

Channel Low = switch is closed

Channel High = switch is open

More Information

You can find detailed information about this process in Chapter 6 of the 790.10 TestWare-SX Application Manual.

Go to How it works for an overview of the process.