EA FAQ

uniTFT Displays - Super class HMI

How to create individual screen pages

Question:

Hello, I want to show different values in one string. But the automatic string is not updated everytime the value changes. I use command #SAP..

 

Answer:

All you need is our uniTFTDesigner which you can download here. The display is connected to the USB of a PC (Windows) and the larger displays of the EA uniTFT series (5" to 10.1") need an external power supply. The smaller displays (uniTFTs) power themselves via the USB.

After installing the uniTFTDesigner tool, I recommend you to watch this introduction video. You will find many examples in uniTFTDesigner at the same time. We have created more tutorials for you in our uniTFT academy.

 

 

Stand alone control unit

Question:

Is it possible to implement control tasks with the display as a stand-alone?

 

Answer:

Yes. The display offers a variety of inputs and outputs and can control external peripherals, calculate and store data. All measured values and information can be presented on the display in an appealing and clear way (by means of digital values, pointers, diagrams, icons and animations). A nice example for this is e.g. the EA DEMOPACK-CLIMA.

For the screen display we have developed an intuitive Windows tool: you can download the uniTFTDesigner here. The display is connected to the USB of a PC (Windows) and the larger displays of the EA uniTFT series (5" to 10.1") need an external power supply. The smaller displays (2" to 4.3": uniTFTs) power themselves via the USB.

 

 

String will be updated partially only

Question:

Hello, I want to show different values in one string. But the automatic string is not updated everytime the value changes. I use command #SAP..

 

Answer:

The command #SAP places an automatic changing formatted string and is the perfect choice.

There is a small trap: If you display multiple values, only the first one is supervised. #SAP Obj-ID,..."%d, %d"; (R0+5), (R1/10) <LF> If R0 changes the text label is updated. If R1 changes nothing happens, because the first parameter is not changing.

There are two possible solutions:

- place two independently automatic strings #SAP.

- use the command #SAC. To stick to the example: #SAC Obj-ID, (R0+R1)<LF>. This command only changes the calculation to be supervised, not the parameters for the print and will help to solve the problem.

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