Backups & recovery
Comparing Backup Images
For a technician determining what changed between two backups, useful when tracking down an unexplained program edit or configuration drift.
- Step 1.
Gather both backup sets
Copy the older and newer backup files onto a PC in clearly labeled, separate folders.
- Step 2.
Compare file lists first
Check for programs or files present in one backup but missing from the other.
- Step 3.
Compare file sizes and timestamps
Look for files with sizes or dates that changed between the two backups as a first filter for what to inspect closely.
- Step 4.
Handle program files correctly
Standard *.TP program files are not natively text-readable. To diff program text on a PC, you need ASCII program backups (*.LS) produced with the ASCII Program Loader option. If you only have *.TP files, treat size and timestamp differences as leads and open the programs on the pendant to inspect.
Caution: Do not open *.TP files in a text editor expecting readable code. That's what the *.LS ASCII format is for.
- Step 5.
Compare *.LS program text if available
If ASCII program backups exist for both dates, diff the *.LS files in a text tool to see edited positions, added lines, or changed logic.
- Step 6.
Compare system or configuration files if relevant
For suspected configuration drift, diff I/O assignment files (*.IO) or system variable files between the two backups.
- Step 7.
Document findings
Record what changed, when, and if possible, who made the change, for the maintenance log.
Common questions
- How long does Comparing Backup Images take?
- Comparing Backup Images is rated Intermediate and takes about 30 minutes across 7 steps.
- What tools do I need?
- You will need USB drive with both backups, A PC with a text or file comparison tool.
- What should I do before starting?
- Two backup sets from the same robot at different points in time. ASCII program backups (*.LS) available if you need to diff program text.
- What is the first step?
- Gather both backup sets. Copy the older and newer backup files onto a PC in clearly labeled, separate folders.