EXOR eVO58-TST/TNT Compact HMI Human Machine Panel

EXOR eVO58-TST/TNT Compact HM Human Machine Panel: Old Machine Upgrade and Troubleshooting Guide

In the lifecycle management of industrial automation production lines, the HMI (Human Machine Interface) panel of old equipment is often the first component to face elimination or shutdown. When the original operation screen experiences screen aging, touch failure, or communication protocol incompatibility, engineers urgently need to find a replacement product that can seamlessly embed into the original control cabinet opening and be perfectly compatible with the existing PLC communication protocol. EXOR effectiveness View eVO58-TST and eVO58-TNT, as 5.7-inch TFT compact HMI panels, provide a highly practical solution for upgrading and replacing entry-level HMI applications with high cost-effectiveness and rich underlying functions.

This article will provide a detailed professional guide for engineers in the equipment maintenance and upgrade stage from the dimensions of hardware architecture selection, underlying communication topology, configuration software ecology, and troubleshooting during on-site replacement.

Core Differences in Selection: Hardware Architecture Comparison between TST and TNT

Accurately distinguishing the hardware differences between eVO58-TST and eVO58-TNT is the first hurdle before purchasing replacement parts. Both are highly consistent in terms of core display and interactive hardware: both are equipped with a 5.7-inch TFT color display screen, support 320x240 pixel resolution, have 256 color display capability and LED backlight, and adopt analog resistive touch screen. This configuration can provide clear on-site data display in packaging machinery, textile equipment, or HVAC control cabinets.

The core watershed between the two lies in network communication capabilities:

EVO58-TST: No Ethernet interface, relies entirely on the bottom serial port for data exchange.

EVO58-TNT: Integrated with 10/100 Ethernet interface, supports Ethernet based multi node data sharing, suitable for modern transformation scenarios that require networking with upper computer MES systems or SCADA systems.

In terms of storage and power down maintenance, both panels provide 4MB of Flash user memory, which is sufficient to support medium complexity image configuration, recipe, and historical alarm storage. The system has 128KB to 1MB of RAM and comes standard with a hardware RTC (Real Time Clock) with battery backup. This means that even during equipment power outages and maintenance periods, the clock inside the panel can still operate accurately, ensuring that the timestamp of fault alarm records is not misplaced, which is crucial for tracing the root cause of equipment failures afterwards.

Communication topology and interface configuration logic

The communication environment in industrial sites is often complex and intricate, with different brands of drivers and PLC protocols varying. The EXOR eVO58 series demonstrates strong inclusivity in the interface design at the bottom:

Dual serial communication: The bottom of the panel provides two independent serial ports, COM1 and COM2. According to the interface definition, both of these serial ports support three physical layer standards: RS-232, RS-422, and RS-485 (usually COM1 supports full functionality, COM2 is designed for RS-232/485 multiplexing). This endows the panel with powerful "multi drive communication capability", which can simultaneously connect an RS-485 frequency converter, an RS-232 temperature control instrument, and an RS-422 PLC.

Vertical mode support: In some special machines (such as vertical packaging machines), engineers need vertical screen display. EVO58 supports portrait mode operation at both hardware and software levels, which can be easily switched with just one click in the configuration software to eliminate the hassle of rearranging screen elements.

Physical interface layout: From the back view, the interfaces from left to right are: power terminal, Ethernet port (TNT only), COM1 serial port, COM2 serial port. This centralized bottom routing design greatly facilitates the wiring harness planning inside the control cabinet.

Configuration software ecosystem: the powerful empowerment of eDesigner

Hardware is only the carrier, software is the core that determines the project development cycle and post maintenance efficiency. EXOR has equipped the panel with powerful eDesigner configuration software.

Multilingual and Unicode support: In response to the needs of export devices, the panel supports switching between up to 10 online languages and has a built-in Unicode font library. Application text can be directly exported as a file for external translation, and then re imported, completely solving the pain point of traditional HMI rare or Chinese characters occupying internal memory.

Dynamic Data and Visualization: In addition to basic numerical and text displays, the software supports bar charts, sliders, dashboards, as well as bitmap, JPEG, and dynamic GIF images. Object properties such as visibility and position can be dynamically controlled, making it easy to simulate real-time animation effects.