Siemens SIMATIC FM 353 Manual page 308

Troubleshooting
11.2.2 Diagnostic interrupts
Overview
Internal errors, external errors and external channel errors are indicated to an inter-
rupt-capable system by means of diagnostic interrupts (see diagnostic interrupt
data in Tables 11-4, 11-5 and Section 6.3.4). This presupposes that the diagnostic
interrupt message was activated at the time of configuration (see Chapter 5). If the
system is not interrupt-capable, the diagnostic interrupt information must be read
out cyclically with POS_DIAG.
Error class
Internal errors
External errors
External channel errors
A diagnostic interrupt is reported by the FM 353 as "incoming" or "outgoing".
Message to the CPU (precondition: interrupt message activated
(see Section 5.2)
No OB 82 OB 82
exists ! CPU exists ! CPU
switches to
Enters the
STOP
diagnostic in-
formation in the
diagnostic diagnostic
buffer of the
CPU (4 bytes)
and calls SFC
52
Interrupt acknowledgement
If processing is to continue after a diagnostic interrupt, the diagnostic interrupt has
to be acknowledged with a restart (user DB, DBX37.5) when the error has been
remedied.
Internal errors cannot be acknowledged. External errors are self-acknowledging.
11-6
Coding
Byte-.Bit-No. 0.1
Group error byte 2, 3
Byte-.Bit-No. 0.2
Byte-.Bit-No. 0.2, 0.3 y
Group error byte 8
Diagnostic interrupt
OB 1
Enters the Calls
diagnostic in- POS_DIAG
formation in
the user DB the user DB
starting at ad-
dress 70 and
calls
POS_DIAG
Message
LED "SF"
LED "SF" and "DIAG"
LED "SF" and "DIAG"
Message in the Entry in diag-
"troubleshooting" nostic buffer
display of Para- display of "Para-
meterize FM353"
Menu: Test > Menu: Test >
Troubleshooting
FM 353 Stepper Drive Positioning Module
6ES7 353-1AH01-8BG0