Siemens S5-115U Error SUF: Substitution error

Siemens S5-115U Programmable Controller · taken from the manufacturer’s manual, pages cited

Error codeSUF

Substitution error due to incorrect actual parameter passed to a function block. The manual's first action is: “Correct the function block call.”

Model
Siemens S5-115U
Display shows
Substitution error (SUF)
Type
Error code
Source
Manual p. 139

What SUF means

Substitution error p. 139

Common causes

  • Substitution error: A function block was called with an incorrect actual parameter. p. 139
  • Substitution error p. 139

What to do

  1. Correct the function block call. p. 139

Before you service the product, read the safety instructions in the manual p. 414.

If SUF is still not resolved

The manual gives no further instruction for this code. Open the code table in the PDF or contact Siemens service.

Open the manual at page 139 All S5-115U error codes Manual details & download

This page summarises what the manufacturer’s manual says about SUF; 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.