Interrupt Events In Priority Order - Siemens SIMATIC S7-200 System Manual

Table 9-24 shows the interrupt event, priority, and assigned event number.
Table 9-24 Interrupt Events in Priority Order
Event Number
8 Port 0: Receive character
9 Port 0: Transmit complete
23 Port 0: Receive message complete
24 Port 1: Receive message complete
25 Port 1: Receive character
26 Port 1: Transmit complete
19 PTO 0 complete interrupt
20 PTO 1 complete interrupt
0 Rising edge, I0.0
2 Rising edge, I0.1
4 Rising edge, I0.2
6 Rising edge, I0.3
1 Falling edge, I0.0
3 Falling edge, I0.1
5 Falling edge, I0.2
7 Falling edge, I0.3
12 HSC0 CV=PV (current value = preset value)
27 HSC0 direction changed
28 HSC0 external reset
13 HSC1 CV=PV (current value = preset value)
14 HSC1 direction input changed
15 HSC1 external reset
16 HSC2 CV=PV
17 HSC2 direction changed
18 HSC2 external reset
32 HSC3 CV=PV (current value = preset value)
29 HSC4 CV=PV (current value = preset value)
30 HSC4 direction changed
31 HSC4 external reset
33 HSC5 CV=PV (current value = preset value)
10 Timed interrupt 0
11 Timed interrupt 1
21 Timer T32 CT=PT interrupt
22 Timer T96 CT=PT interrupt
S7-200 Programmable Controller System Manual
A5E00066097-02
Interrupt Description
SIMATIC Instructions
Priority
Priority Group
in Group
0
0
0
Communications Communications
(highest)
1
1
1
0
1
2
3
4
5
6
7
8
9
10
11
Discrete (middle) Discrete (middle)
12
13
14
15
16
17
18
19
20
21
22
23
0
1
Timed (lowest) Timed (lowest)
2
3
9-177