Siemens S7-300 Manual page 8

Assigning interrupt parameters to channel groups
The table below shows the channels that can be combined to form a channel
group if you would like to parameterize interrupt processing.
You will need the channel group number to set the parameters in the user program
with an SFC.
Table 2
Hardware interrupt
(for falling, rising or both types of pulse
edges)
Diagnostic interrupt
(if there is no sensor supply)
Wire break
Tolerances of the programmable input delays
Table 3
8
Assignment of the interrupt parameters to the inputs of the SM 321;
DI 16 DC 24 V
Parameter...
Tolerances of the input delays of the SM 321; DI 16 DC 24 V
Programmed Input delay
0.1 ms
0.5 ms
3 ms (preset)
15 ms
20 ms
Product Information on the Manual S7-300 Module Specifications, Edition 11/2002
Can Be Set in Following
Channel Groups
0 and 1
2 and 3
4 and 5
6 and 7
8 and 9
10 and 11
12 and 13
14 and 15
0 to 7
8 to 15
0 and 1
2 and 3
Tolerance
60 to 140 ms
400 to 900 ms
2.6 to 3.3 ms
12 to 15 ms
17 to 23 ms
Channel Group
Number
0
1
2
3
4
5
6
7
-
0
1
:
A5E00213444-02