Siemens S7-300 - Page 8

8
Product Information on the Manual S7-300 Module Specifications, Edition 11/2002
A5E00213444-02
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 Assignment of the interrupt parameters to the inputs of the SM 321;
DI 16 DC 24 V
Parameter... Can Be Set in Following
Channel Groups
Channel Group
Number
Hardware interrupt
(for falling, rising or both types of pulse
edges)
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
1
2
3
4
5
6
7
Diagnostic interrupt
(if there is no sensor supply)
0 to 7
8 to 15
-
Wire break 0 and 1
2 and 3
0
1
:
Tolerances of the programmable input delays
Table 3 Tolerances of the input delays of the SM 321; DI 16 DC 24 V
Programmed Input delay Tolerance
0.1 ms 60 to 140 ms
0.5 ms 400 to 900 ms
3 ms (preset) 2.6 to 3.3 ms
15 ms 12 to 15 ms
20 ms 17 to 23 ms