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Alarm, fault and system messages
11.4 I/O device diagnostics
SIMATIC MV420 / SIMATIC MV440
350
Operating Instructions, 04/2013, A5E02371045-06
Diagnostics data record SFB 52
Byte
Value
Meaning
0 ... 1
W#16#0010
Data record type: Diagnostics data record
2 ... 3
W#16#0012
Data record length starting at byte 4: 18 bytes
4 ... 5
W#16#0100
Version
6 ... 7
W#16#0000
Slot
8 ... 9
W#16#0000
Subslot
10 ... 11
W#16#0000
Channel
12
B#16#08 / B#16#10
Error occurred / no error occurred
13
B#16#05
Identifier indicating that all variables are stored in words starting at byte
14.
14 ... 15
W#16#0004
ID for vendor-specific diagnostics (fixed)
16 ... 17
W#16#0000
Channel number
18 ... 19
W#16#0805 / W#16#1005
Content identical to that of bytes 12 and 13.
20 ... 21
Value from the table under error
messages
ID of the error that occurred.
Содержание SIMATIC MV420
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