Diagnostic Messages Of The Sm 322; Do 8 X 120/230 Vac/2 A Isol; Error Causes And Remedies - Siemens SIMATIC S7-300 Reference Manual

Behavior and Diagnostics of the SM 322; DO 8 x 120/230 VAC/2 A ISOL
Table 3-23 gives an overview of the diagnostic messages of the
SM 322; DO 8 x 120/230 VAC/2 A ISOL.
Table 3-23 Diagnostic Messages of the SM 322; DO 8 x 120/230 VAC/2 A ISOL
Diagnostics Message
Time-out
EPROM error
RAM error

Error causes and remedies

Table 3-24 shows the diagnostic messages and error causes as well as the
remedies of the SM 322; DO 8 x 120/230 VAC/2 A ISOL.
Table 3-24 Diagnostic messages of the SM 322; DO 8 x 120/230 VAC/2 A ISOL,
error causes and remedies
Diagnostics
message
Time-out
EPROM error
RAM error
Programmable Logic Controllers S7-300 Module Data
A5E00105505-03
LED Scope of the diagnostics
SF
SF
SF
Error detection
Always Transient high
electromagnetic
interference
Module defective
Always Transient high
electromagnetic
interference
Module defective
Always Transient high
electromagnetic
interference
Module defective
Module
Module
Module
Possible error cause
Digital Modules
Parameters can be
assigned
No
No
No
Remedy
Remove interference and turn
the CPU power supply off and
on
Replace module
Remove interference and turn
the CPU power supply off and
on
Replace module
Remove interference and turn
the CPU power supply off and
on
Replace module
3-91