Allen-Bradley MicroLogix 1400 User Manual

Publication 1766-RM001A-EN-P - October 2008
310 Using Interrupts
The priorities from highest to lowest are:
User Fault Routine
The user fault routine gives you the option of preventing a controller
shutdown when a specific user fault occurs. The fault routine is executed
when any recoverable or non-recoverable user fault occurs. The fault
routine is not executed for non-user faults.
Faults are classified as recoverable, non-recoverable, and non-user faults.
A complete list of faults is shown in Fault Messages and Error Codes on
page 577. The basic types of faults are described below:
User Fault Routine highest priority
Event Interrupt0
Event Interrupt1
High-Speed Counter Interrupt0
Event Interrupt2
Event Interrupt3
High-Speed Counter Interrupt1
Selectable Timed Interrupt
Event Interrupt4
High-Speed Counter Interrupt2
Event Interrupt5
High-Speed Counter Interrupt3
Event Interrupt6
High-Speed Counter Interrupt4
Event Interrupt7
High-Speed Counter Interrupt5 lowest priority
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Allen-Bradley MicroLogix 1400 Specifications

General

Processor	32-bit
Expansion Modules	Up to 7 expansion I/O modules
Power Supply	24V DC or 120/240V AC
Programming Software	RSLogix 500
Communication Ports	Ethernet, RS-232/RS-485 combo port
Controller Type	Programmable Logic Controller (PLC)
Series	MicroLogix
Digital Outputs	12
Analog Inputs	6 (embedded)
Analog Outputs	2 (embedded)
High-Speed Counter	6 high-speed counters
Pulse Output	2 (embedded)
Ethernet Port	Yes