PLC / HMI Program Rescue and Backup
Read, verify and archive the user program inside discontinued or locked controllers before it is lost.
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Yunni AI · Industrial control software services
Retrofit and custom development
The machine works, but it needs to do more — or do something differently. We modify the existing logic rather than replace the whole system, so you keep the equipment you already have.
What's included
- HMI / operator screen changes and new screens.
- Alarm, recipe and sequencing changes.
- Error-proofing and interlock improvements.
- Data collection and links to SCADA / higher-level systems.
What you receive
- Updated program and HMI project files.
- A change log and functional description of what was modified.
- Optional commissioning support, remote or on-site.
Indicative pricing
from US$1,400 (CNY ¥10,000–600,000) per project, by scope. Reference rate: 1 USD ≈ 7.2 CNY. International projects are quoted at the time of quotation.
Other services
Program Asset Management
An inventory of your program assets, off-site dual backup, version history and an annual restore drill.
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Annual Support Package
A year of remote support: readings, backups, integrity checks and priority response.
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Retrofit and Custom Development
Extend or correct the existing logic: screens, alarms, recipes, sequencing, data collection, SCADA links.
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Migration to Available Controllers
Replace end-of-life control hardware with controllers you can still buy and service.
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Training and Documentation
English program documentation, operating procedures and hand-over training for your own engineers.
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