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The in/out parameter remains set while the job is running. Data transfer is
complete when the in/out parameter is reset (IN_DIAG = FALSE).
Error Evaluation
Errors which occur are indicated in the binary result (BIE = 0).
Possible errors are:
Data transfer error during communication with SFC 59 "RD_REC". The er-
ror is returned in the output parameter RET_VAL (see reference manual Sys-
tem Software for S7-300/400; System and Standard Functions).
Message to the CPU (precondition: interrupt message activated (see Section 5.2))
No OB 82
exists
exists
CPU
switches to
STOP
Diagnostic Data
The following table contains the diagnostic information for channels 1 to 3,
DIAGNOSTIC_INT_INFO in the user DB starting at address 72.
Table 6-4
4-byte
FM 453 Servo Drive / Step Drive Positioning Module
C79000-G7076-C453-01
Diagnostic Interrupt
OB 82
Enters the diagnostic in-
formation in the diagnostic
buffer of the CPU (4 bytes)
and calls SFC 52
On operating error:
(addr. in user DB 80.7/82.7/84.7)
For further error specification by reading out DS 164 (channel 1),
DS 199 (channel 2), DS 234 (channel 3) in OB 1
see example application 2
Diagnostic Information
Data
Byte.Bit
Format
No.
0.0
Module/group disturbances (incoming and outgoing)
0.1
Internal error/HW error (group error bytes 2, 3)
0.2
External error
0.3
External channel error (group error bytes 8, 10, 12)
0.6
Module not parameterized
1.0 – 3
Type class of module; for FM 453 = 08H
1.4
Channel information present
2.1
Communication disturbance (K bus)
2.3
Time monitoring actuated/Watchdog
2.4
Module internal power supply failed (NMI)
3.2
FEPROM error
3.3
RAM error
3.6
Process interrupt lost
Programming the FM 453
OB 1
Enters the diagnostic in-
Calls FC
formation in the user DB
6
starting at address 72 and
calls FC 4
Significance
6-19
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