With the basic components for the application in place, and an understanding of the application, programming can be started. This operation is to be repeated continuously ( free-running ). The data is then graphed on a strip chart, displayed in numeric format and bar format, and lastly, a high alarm limit is to be checked. Our application will send an ' RD0' command to an ADR112 on com2 causing the ADR112 to return an 12-bit number ( 0000 to 4095 ) depending on the voltage on AN0. Programming Before starting the programming we should have a clear understanding of what the functions the application is to perform. The X axis was configured to show 1000 samples in the chart window. The Y axis was set to a range of 0 to 4096 to facilitate the 12-bit data from the ADR112. Figure 4 shows the graph being set to a ' Strip Chart ' mode. Double-clicking and object in the object List or in the application will cause a menu to pop up and allow setting of parameters for that object. Figure 3: Initial Application Objects Objects loaded into the application also appear as icons in the object list. Position the objects as shown in Figure 3. The required items are a switch, graph, RS232 port and a loop. The screen shown in Figure 2 will appear.įigure 2: TestPoint Start Screen Begin by dragging objects required for the application from the stock window into your application. Lets Get Started With TestPoint loaded, double-click the TestPoint icon to start the application.
A visual alarm indicator changes color from green to red when the analog input value exceeds a limit value entered by the user. The panel displays the value of analog input 0 from the ADR112 and displays its value in three formats including, strip chart, bar graph and as a numeric value. It is assumed the user has a basic knowledge of TestPoint, however, no prior experience with TestPoint is required as long as the user manual is available to help with the generic tasks.įigure 1 shows our final operating panel for the application in operation.
The application is a strip chart recorder with an alarm indicator using an data acquisition and control interface. Introduction The following application demonstrates how TestPoint can be used with ADR interfaces, or any ASCII based serial data acquisition and control interface. Using TestPoint for Serial Data Acquisition and Control via RS232 Phone:(705) 671-2652 Fax:(705) 671-6127 Email: Using TestPoint to Send Commands via RS232 to ADR Interfaces TestPoint Application - Strip Chart Recorder with Alarm Indicator 1. Customizable Start-up Software Our free TestPoint runtime start-up software package provides basic datalogging capabilities, so a system can be up and running almost. 2: Rocker Dongle Secure unlocking without test point, flashing with latest firmware files, repairing software bugs - all these features are available only to Rocker.
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