PLC backup software that never misses a change
Automated, signed PLC backups across every line, every vendor. Diff two versions side by side, restore in seconds, and prove configuration integrity to auditors without chasing files on a network share.
What gets captured, on every backup
PLC code
Full program, routines, function blocks, ladder, ST and SFC — vendor-native format preserved.
HMI tags & screens
Tag databases, screen definitions, alarms, recipes and user-level permissions.
Recipe data
Production recipes, setpoints, batch parameters — versioned alongside the code that consumes them.
Machine parameters
Drive parameters, IO config, network topology, safety configuration and firmware fingerprints.
See exactly what changed, down to the rung
01 ROUTINE MainLoop02 XIC Start_PB OTE Run_Cmd03− TON Fill_T Preset:= 400004 XIC Run_Cmd OTE Motor_0105~ MOV Setpoint Dest:= Tank_SP06 GEQ Tank_SP Limit:= 80.007 END_ROUTINE
01 ROUTINE MainLoop02 XIC Start_PB OTE Run_Cmd03+ TON Fill_T Preset:= 520004+ XIC HOA_Auto OTE Run_Cmd05 XIC Run_Cmd OTE Motor_0106~ MOV Setpoint Dest:= Tank_SP_v207 GEQ Tank_SP Limit:= 80.008 END_ROUTINE
Illustrative example of the VEM diff view — not a screenshot of any vendor IDE.
File share vs. version control
| Capability | Network file share | VEM PLC backup |
|---|---|---|
| Automated capture | Manual upload by engineer | Scheduled + event-triggered |
| Diff between versions | Open both files in vendor IDE | Visual diff in the browser |
| Who changed what, when | Filename guesswork | Signed, attributed history |
| Drift detection | None | Alerts when controller ≠ baseline |
| One-click restore | Re-download and reflash manually | Restore from any version |
| Audit trail | Folder listing | Immutable, exportable log |
All supported PLCs
Common questions
Stop chasing PLC files. Start versioning them.
A short working session with our team — we'll show VEM running against a controller from your stack and answer the questions your controls engineers actually have. Prefer to read first? See how teams use VEM or the disaster recovery playbook.
Talk to the team →