FANUC Alarm WNDW-028 — WARN Mis-match on push/pop seq
FANUC WNDW-028 (“WARN Mis-match on push/pop seq”): This indicates that the pop_index specified in a POP_KEY_RD call is not the expected value, indicating that call are being made out of order. First check: Check the logic in use of PUSH_KEY_RD and POP_KEY_RD to ensure that the pop_index values are being suplied in the correct order.
Updated 2026-08-29 · LogrobotLM reference
Description
This indicates that the pop_index specified in a POP_KEY_RD call is not the expected value, indicating that call are being made out of order.
Remedy · Remède
Check the logic in use of PUSH_KEY_RD and POP_KEY_RD to ensure that the pop_index values are being suplied in the correct order. If more than one task is issuing PUSH_KEY_RD and POP_KEY_RD calls, extra care is required
Frequently asked · Questions fréquentes
- What does FANUC alarm WNDW-028 mean?
- FANUC WNDW-028 (“WARN Mis-match on push/pop seq”): This indicates that the pop_index specified in a POP_KEY_RD call is not the expected value, indicating that call are being made out of order.
- How do you troubleshoot FANUC alarm WNDW-028?
- Check the logic in use of PUSH_KEY_RD and POP_KEY_RD to ensure that the pop_index values are being suplied in the correct order. If more than one task is issuing PUSH_KEY_RD and POP_KEY_RD calls, extra care is required
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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. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →