Publication 1766-RM001A-EN-P - October 2008
Using Interrupts
315
3.
Add the Decimal Values if you selected more than one type of
interrupt.
4.
Enter the sum into the UID instruction.
For example, to disable EII Event 1 and EII Event 3:
EII Event 1 = 32, EII Event 3 = 4
32 + 4 = 36 (enter this value)
UIE - User Interrupt
Enable
Instruction Type: output
The UIE instruction is used to enable selected user interrupts. The table
below shows the types of interrupts with their corresponding enable bits:
UIE
User Interrupt Enable
Interrupt Types
4
UIE
Execution Time for the UIE Instruction
Controller
When Rung Is:
True
False
MicroLogix 1400
3.4226 µs
0.1968 µs
Types of Interrupts Disabled by the UIE Instruction
Interrupt
Element
Decimal
Value
Corresponding
Bit
EII - Event Input Interrupt
Event 4
16384
bit 14
HSC - High-Speed Counter
HSC2
8192
bit 13
EII - Event Input Interrupt
Event 5
4096
bit 12
HSC - High-Speed Counter
HSC3
2048
bit 11
EII - Event Input Interrupt
Event 6
1024
bit 10
HSC - High-Speed Counter
HSC4
512
bit 9
EII - Event Input Interrupt
Event 7
256
bit 8
HSC - High-Speed Counter
HSC5
128
bit 7
EII - Event Input Interrupt
Event 0
64
bit 6
EII - Event Input Interrupt
Event 1
32
bit 5
HSC - High-Speed Counter
HSC0
16
bit 4
EII - Event Input Interrupt
Event 2
8
bit 3
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