Siemens S5-115U Error OB254: Reading in digital inputs (only in the case of CPU 944)

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

Error codeOB254

Reading in digital inputs (only for CPU 944). The manual lists no action for this code.

Model
Siemens S5-115U
Display shows
Reading in digital inputs (only in the case of CPU 944) (OB254)
Type
Error code
Source
Manual p. 194

What OB254 means

Reading in digital inputs (only in the case of CPU 944) p. 194

If OB254 is still not resolved

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

This page summarises what the manufacturer’s manual says about OB254; 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.