FANUC Alarm TG-013 — Invalid IO Port in Sch… Ev…
Manufacturer wording — Invalid IO Port in Sch%d^2 Ev%d^3
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC TG-013 (“Invalid IO Port in Sch… Ev…”): In the trigger schedule number $TGSCHED[num] indicated by the alarm text, the indicated event number has an invalid port type specified. First check: Change $TGSCHED[Sch].$PORT_TYPE[Ev] to a valid port type.
Updated 2026-09-17 · LogrobotLM reference
Description
In the trigger schedule number $TGSCHED[num] indicated by the alarm text, the indicated event number has an invalid port type specified.
Remedy
Change $TGSCHED[Sch].$PORT_TYPE[Ev] to a valid port type. Note that Robot Digital Input and Group Input are not allowed. If you have not modified these variables since loading, then obtain a file backup and contact your FANUC or FANUC Robotics Technical Representative.
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 →