EXOR eVO58-TST/TNT Compact HMI Human Machine Panel

Macro instructions and scripts: eDesigner comes with a powerful scripting language and editor built-in. Engineers can write macro instructions triggered by touch actions, system events, or timers. For example, when a specific alarm is triggered, a shutdown command is automatically written to the connected PLC through macro instructions, or the alarm information is sent to the server host within the local area network through TNT's Ethernet port.

Data traceability and formula management: supports data collection and trend chart display, and formula data can be stored in batches and uploaded to the host. The multi-level password protection function ensures that core process parameters will not be arbitrarily modified by unauthorized personnel.

On site replacement and common troubleshooting guide

When replacing old HMIs (such as some discontinued early text screens or monochrome screens), the primary task is to match the mechanical dimensions of the openings. Before installation, it is necessary to check the hole size markings on the back of the panel (hole A x B). If the original control cabinet hole is too large, a conversion panel needs to be processed; If it is too small, it needs to be re cut. The installation depth (D) also needs to confirm whether there is sufficient wiring space inside the control cabinet.

Common troubleshooting and avoiding pitfalls:

Black screen or backlight not working when powered on: First, use a multimeter to measure the input voltage of the power terminal to ensure that it is within the rated operating range of the device and that the positive and negative terminals are not reversed. If the power supply is normal but the screen is not displaying, check the lifespan of the backlight tube; If the screen has extremely dark display but no backlight, it is usually a fault in the LED backlight driver circuit.

Touch offset or no response: Resistive screens are prone to drift after long-term use or external pressure. You can try to perform touch calibration again in the system settings. If there is no response in the local area, it is necessary to check whether there are hidden cracks on the screen surface or whether the touch film cable is loose due to vibration.

Communication timeout or garbled data: If using RS-485/422 communication, first check if the A/B line or TX/RX line is connected incorrectly. Secondly, verify whether the communication parameters (baud rate, data bits, stop bits, parity bits) are completely consistent with the main control PLC. If there is strong electromagnetic interference on site, it is necessary to confirm whether the shielding layer of the communication cable is effectively grounded at the single end on the panel side.

System time reset to zero or formula loss: Due to the panel's reliance on internal batteries to maintain RTC clock and partial memory data, if the battery is depleted due to long-term lack of power, the time will reset to zero after power failure. It is recommended to measure the backup battery voltage when replacing new panels or conducting routine maintenance, and replace the battery while the system is powered on to prevent data loss.