Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

Publication 1763-RM001C-EN-P - October 2009
Knowledgebase Quick Starts 555
Pressing will disable the RTC from functioning and
decrease the drain on the battery during storage.
# 17558 “Quick Start”
User Interrupt Disable
(UID)
The UID instruction can be used as an output instruction to disable
selected user interrupts.
Once a user interrupt is disabled the User Interrupt Enable bit (UIE) for
the selected interrupt will be cleared or reset to a zero (0). This stops the
interrupt from executing.
To re-enable an interrupt the UIE bit must be set to a one (1), or a UIE
instruction must be used.
The following table indicates the types of interrupts disabled by the UID.
RTC:0/BL The Battery Low bit will be set (1) when the battery is low.
This means that the battery will fail in less than 14 Days after
which the RTC data may become invalid. At this time, replace
battery (The RTC uses the same battery that the controller
uses).
Interrupt Element Decimal Value Corresponding Bit
Ell - Event Input Interrupts Event 0 64 bit 6
Ell - Event Input Interrupts Event 1 32 bit 5
HSC - High Speed Counter HSC0 16 bit 4
Ell - Event Input Interrupts Event 2 8 bit 3
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Allen-Bradley MicroLogix 1100 Specifications

General

Brand	Allen-Bradley
Model	MicroLogix 1100
Category	Controller
Language	English