Publication 1766-RM001A-EN-P - October 2008
314 Using Interrupts
UID - User Interrupt
Disable
Instruction Type: output
The UID instruction is used to disable selected user interrupts. The table
below shows the types of interrupts with their corresponding disable bits:
To disable interrupt(s):
1. Select which interrupts you want to disable.
2. Find the Decimal Value for the interrupt(s) you selected.
IMPORTANT
You cannot use indirect addressing with: S, MG, PD, RTC,
HSC, PTOX, PWMX, STI, EII, BHI, MMI, CS, IOS, and DLS
files.
UID
User Interrupt Disable
Interrupt Types 5
UID
Execution Time for the UID Instruction
Controller When Rung Is:
True False
MicroLogix 1400 2.7470 µs 0.1859 µs
Types of Interrupts Disabled by the UID 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
EII - Event Input Interrupt Event 3 4 bit 2
HSC - High-Speed Counter HSC1 2 bit 1
STI - Selectable Timed Interrupt STI 1 bit 0
Note: Bit 15 must be set to zero
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