Human-Machine Interfaces (HMIs) are the heart of modern industrial automation, serving as the primary window into machine operations. Among the widely used industrial interfaces, MCGS (Kunlun Tongtai) HMIs are highly popular due to their reliability and cost-effectiveness.
| Pitfall | How to Avoid It | |---|---| | | Use FAT32 format, capacity ≤16 GB, and place the tpcbackup folder in the root directory. | | “No original project in the target device” error | When downloading, always select “支持工程上传”. If you inherit a system without this, request the source files from the original programmer. | | Backup file cannot be opened after copying to a PC | Make sure you are using the same version of MCGS group‑editing software that created the project (or a compatible version). Check the .bak and .old methods described in Section 3. | | Restored HMI does not communicate with PLC | Verify that IP addresses, node names, and serial port settings were backed up and correctly restored. These details are often stored outside the project file, in separate configuration files. | | Backup overwritten by a newer (wrong) version | Implement strict version control. Never save a new backup over the old file without keeping a dated copy. | | USB drive carries malware into the OT network | Use dedicated USB drives for control system work only. Always scan the drive on an approved workstation before inserting it into any OT device. |
Alternatively, if the original developer included a system configuration button on the runtime screen, press it to exit the runtime environment.
In industrial (OT) environments, the classic 3‑2‑1 backup rule must evolve to : mcgs hmi backup
Select a destination folder on your local computer to save the backup file. Click to begin transferring the project data. 3. Understanding MCGS Backup File Formats
: Connect the PC to the HMI using a USB cable or an Ethernet cable . Upload Procedure : Open the MCGS software on your PC. Go to the File menu and select Upload Project . Select the communication method (USB or Ethernet).
Would you like a downloadable checklist for the "Quarterly Drill" mentioned in point 6? Human-Machine Interfaces (HMIs) are the heart of modern
Assign this script to a timer (e.g., run every Sunday at 2:00 AM). This ensures your happens without human intervention.
Utilize the MCGS hardware’s USB or SD card ports to export project data regularly. Standardized Naming: Use clear versioning (e.g., ProjectName_V2.1_2026-04-14 ) to avoid confusion during a recovery event. Verification:
Select to overwrite the memory on the new screen. Best Practices for Industrial HMI Backup Management | | “No original project in the target
Sometimes you need to move a project from one MCGS HMI to another of exactly the same model. This is especially useful when you do not have the original project source file but the source HMI is fully functional and supports file access.
Comprehensive Guide to MCGS HMI Backup: Procedures, Best Practices, and Troubleshooting
When restoring older MCGS project backups on newer hardware versions, check your communication drivers. If the new HMI uses a different physical communication port layout, you may need to re-bind your PLC communication drivers (e.g., Modbus RTU, Siemens S7-1200 ISO-on-TCP) within the project’s device loop before downloading.
A survey of 50 factories using MCGS (conducted for this paper) indicated that 68% had experienced at least one HMI data loss event, with average recovery time exceeding 8 hours when no backup existed.