Siemens 352P Error DFAIL: Device Failed – PCOM block

Siemens 352P controller · taken from the manufacturer’s manual, pages cited

Alarm codeDFAIL

A Device Failed error occurred in the PCOM block. The manual lists no action for this code.

Model
Siemens 352P
Display shows
Device Failed – PCOM block (DFAIL)
Type
Alarm code
Source
Manual p. 265

What DFAIL means

Device Failed – PCOM block p. 265

If DFAIL is still not resolved

  • contact service / dealer p. 12
    “Should further information be desired or should particular problems arise which are not covered sufficiently for the purchaser’s purposes,”
  • contact service / dealer p. 12
    “the matter should be referred to one of the support groups listed in the Product Support section of this manual.”

This page summarises what the manufacturer’s manual says about DFAIL; each statement links to the page it comes from, and quoted lines are copied word for word. It is not a substitute for the manual or for a qualified installer. ManualLib is not affiliated with Siemens. Found a mistake? Report an error.