Basics Of Program Execution; Events And Obs - Siemens SIMATIC S7-1500/ET 200MP System Manual

Basics of program execution

9.1

Events and OBs

Triggers
The table below gives an overview of the possible event sources for start events and their
OBs.
Table 9- 1 Triggers
Event sources
Startup
2)
Cyclic program
2)
Time-of-day interrupt
2)
Time-delay interrupt
2)
Cyclic interrupt
2)
Hardware interrupt
2)
Status interrupt
Update interrupt
Manufacturer-specific or
profile-specific interrupt
Isochronous mode interrupt
Time error
3)
Maximum cycle time exceed-
ed once
Diagnostic interrupt
Removal/insertion of modules 2 to 26 (6)
Rack error
MC servo
4)
MC pre-servo
4)
MC post-servo
4)
MC interpolator
4)
MC pre-interpolator
4)
MC-LookAhead
4)
MC-Transformation
4)
Automation system
System Manual, 01/2023, A5E03461182-AK
Possible priorities (default
priority)
1
1
2 to 24 (2)
2 to 24 (3)
2 to 24 (8 to 17, frequency
dependent)
2 to 26 (16)
2 to 24 (4)
2 to 24 (4)
2 to 24 (4)
16 to 26 (21)
22
2 to 26 (5)
2 to 26 (6)
17 to 26 (26)
corresponds to priority of the
MC-Servo
corresponds to priority of the
MC-Servo
16 to 26 (24)
corresponds to priority of the
MC interpolator
15 to 16 (15)
17 to 25 (25)
Possible OB Default system
numbers reaction
100, ≥ 123 Ignore
1, ≥ 123 Ignore
10 to 17, ≥ 123 Not applicable
20 to 23, ≥ 123 Not applicable
30 to 38, ≥ 123 Not applicable
40 to 47, ≥ 123 Ignore
55 Ignore
56 Ignore
57 Ignore
61 to 64, ≥ 123 Ignore
80 Ignore
STOP
82 Ignore
83 Ignore
86 Ignore
91 Not applicable
67 Not applicable
95 Not applicable
92 Not applicable
68 Not applicable
97 Not applicable
98 Not applicable
9
Number of OBs
1)
0 to 100
0 to 100
0 to 20
0 to 20
0 to 20
0 to 50
0 or 1
0 or 1
0 or 1
0 to 2
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
0 or 1
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