UniOP ePAD32B/ePAD33B/ePAD33BT Industrial HMI

If it is still lost, check the battery socket solder joints or nearby circuits.

Fault 6: Video input without screen (ePAD33B/BT)

Possible reasons:

The video input module is not installed correctly or the driver is not loaded.

Camera or video source malfunction.

Video format mismatch (NTSC vs PAL).

Troubleshooting steps:

Confirm that the video input module is securely inserted into the Aux port and that the video window is enabled in the project.

Connect the camera directly to the TV or monitor and confirm that the video source is working properly.

Switch the video format (NTSC/PAL) in the HMI system settings to match the camera.

Update HMI firmware to the latest version that supports video modules.

Replacement and upgrade path

Path 1: Upgrading within the same series

Upgrading from ePAD32B to ePAD33B: If color display is required on site, it can be directly replaced. The mechanical dimensions and communication interface are compatible, and the engineering files need to be changed to the target device in Designer and recompiled (color configuration may need to be adjusted).

Upgrading from ePAD33B to ePAD33BT: adding touch screen functionality, with the same mechanical size, only touch interaction logic needs to be added to the engineering files.

Path 2: Upgrade from old UniOP products

For users using older VGA screens such as ePAD15 and ePAD20, ePAD3xB provides larger memory (32MB vs a few MB for older models), faster processor, video input options, and richer graphics capabilities. Engineering files can be opened and converted in Designer, but attention should be paid to the differences in macro instructions between the old and new versions.

Path 3: Cross brand replacement

When the ePAD3xB series is discontinued or spare parts are difficult to find, it may be considered to replace it with Siemens HMI Intelligent series (such as TP900), Pro face SP5000 series, or Weintek cMT series. However, it should be noted that:

The communication driver needs to be reconfigured and the communication module may need to be replaced.

The project needs to be completely rewritten, resulting in high migration costs.

The physical keyboard layout may be different, and operators need to be retrained.