Flowchart Of Channel-Related Diagnostics - Siemens SIMATIC S7 Equipment Manual

Flowchart of chan-
nel-related diag-
nostics
SM 338 Equipment Manual
(4) J31069-D401-U1-A0-7618
Channel-related diagnostics is performed as shown in the flowchart below.
NO Error on
channel x?
YES
"SF" LED on
Wire break?
YES
NO
Other channel
error?
YES
NO
Diagnosis
alarm to CPU
End
Figure 5-1

Flowchart of channel-related diagnostics

-
Parameter
area
Channel-
related diagnostics
and monitoring en-
abled?
YES
NO
Channel-
related diag-
nostics en-
YES
abled?
NO
Diagnosis
YES
alarm en-
abled?
NO
Operation
Diagnosis
area
Entry in byte 7
(channel error
vector), and
bytes 8 to 11?
Entry in byte 7
(channel error
vector), and
bytes 8 to 11?
Update system
diagnosis bytes
(channel error).
5-9