Omron CS1W-CT021, Operation Manual

Page: 151 / 201

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Section 4-6
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You can configure an Output to generate interrupts by setting the corresponding
bit in the Interrupt Enable Data of the Outputs. The Interrupt Enable Data of the
Outputs consists of 32 bits representing the 32 Outputs. By default Outputs are
disabled to generate interrupts.
External Interrupt Task
Offset Every Output that is enabled to generate interrupts is assigned two External Inter-
rupt Tasks in the CS1-CPU. For this purpose all 32 Outputs are assigned in
sequential order to consecutive External Interrupt Tasks starting from Output 0. By
defining an Offset you determine the External Interrupt Task numbers of the (first
two) External Interrupt Tasks that are assigned to Output 0. The remaining 31 Out-
puts are assigned to the respective External Interrupt Task numbers in increasing
order starting from “ 2”.
* The assigned External Interrupt Task number is executed at a rising/falling
edge of the corresponding Output bit in the Unit Output Pattern.
General Setting:
m+2 15 14 13 12 11 10 9 8 7 6 5 4 O3 O2 O1 O0
m+3 31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16
Interrupt Enable Data
Outputs
= Digital Outputs 0-3
(corresponding to Physical Digital Outputs O0, O1, O2 and O3)
= Soft Outputs 4-31
0 = Interrupts Disabled
1 = Interrupts Enabled
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
Output Assigned External
Interrupt Task Number Interrupt executed at
rising/falling edge*
0 (=O0) Offset Rising
1 Falling
1 (=O1) 2 Rising
3 Falling
2 (=O2) 4 Rising
5 Falling
3 (=O3) 6 Rising
7 Falling
4 8 Rising
9 Falling
~ ~ ~
31 62 Rising
63 Falling
W902-E2-03.book Seite 136 Donnerstag, 7. Oktober 2004 2:06 14