FANUC Alarm PRIO-198 — AB-RIO Slot … in Test/Prog
Manufacturer wording — AB-RIO Slot %d in Test/Prog
The manual prints placeholders; your controller fills them in with the real group, axis or number.
FANUC PRIO-198 (“AB-RIO Slot … in Test/Prog”): The plc is in test mode, program mode, or the connection might be inhibited in the PLC. First check: Check that the PLC is in run mode and that the connection is not inhibited in the PLC setup.
Updated 2026-09-17 · LogrobotLM reference
Description
The plc is in test mode, program mode, or the connection might be inhibited in the PLC. Note that the alarm severity (STOP or WARN) is affected by the error severity setting on the AB-RIO configuration screen. The last state setting on this screen affects the state of the inputs.
Remedy
Check that the PLC is in run mode and that the connection is not inhibited in the PLC setup.
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 →