LogrobotLM

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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 2026-09-17 · 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

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

Related codes

WNDW-026WARN Read for same keys/kbd activeWNDW-027WARN Too many pushes activeWNDW-030WARN Invalid timeWNDW-032WARN No match on var disp cncl

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