Structure Of The Event Buffer Db - Siemens SIMATIC C7-613 Manual

Integration into the User Program
Structure and Description
Table 4-9

Structure of the Event Buffer DB

Address Name
0 EVENT[1].NUMBER
1 EVENT[1].STATE
2 EVENT[1].PVARS[1]
6 EVENT[1].PVARS[2]
10 EVENT[1].PVARS[3]
14 EVENT[1].PVARS[4]
18 EVENT[1].TIMESTAMP.YEAR
19 EVENT[1].TIMESTAMP.MONTH
20 EVENT[1].TIMESTAMP.DAY
21 EVENT[1].TIMESTAMP.HOUR
22 EVENT[1].TIMESTAMP.MINUTE
23 EVENT[1].TIMESTAMP.SECOND
24 to 47 EVENT[2]...
48 to 71 EVENT[3]...
to
6120 to EVENT[256]...
6143
4-32
Type Description
BYTE Message number
The first message is the most recent
message
CHAR Status of message
"K"=coming
"G"=going
"Q"=acknowledged
DWORD Value of Process Variable 1 at the time
of the status change
DWORD Value of Process Variable 2 at the time
of the status change
DWORD Value of Process Variable 3 at the time
of the status change
DWORD Value of Process Variable 4 at the time
of the status change
BYTE Time stamp, year (BCD encoded)
BYTE Time stamp
Month (BCD encoded)
BYTE Time stamp
Day (BCD encoded)
BYTE Time stamp
Hour (BCD encoded)
BYTE Time stamp
Minute (BCD encoded)
BYTE Time stamp
Second (BCD encoded)
BYTE Second message
BYTE Second message
BYTE 256th message
C7-613 Control System
A5E00138934-03