KUKA Error 2078 — IDENTICAL PREDEFINED SIGNAL NAMES EXPECTED
Displayed as KSS02078 on KRC4 / KRC5 controllers
KUKA 2078 (“IDENTICAL PREDEFINED SIGNAL NAMES EXPECTED”): Only inputs or only outputs have not been entered uniformly. First check: Modify the program accordingly.
Updated 2026-09-09 · LogrobotLM reference
Cause
Only inputs or only outputs have not been entered uniformly. Example: SIGNAL $DIGIN1 $OUT[20] TO $IN[29]
Effect
The program is not executable.
Troubleshooting
Modify the program accordingly. Example: SIGNAL $DIGIN1 $IN[20] TO $IN[29]
Related codes
Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. How this reference is built →