Allen-Bradley MicroLogix 1100 Instruction Set Reference Manual

255 Publication 1763-RM001C-EN-P - October 2009
Chapter 16
Input and Output Instructions
The input and output instructions allow you to selectively update data
without waiting for the input and output scans.
IIM - Immediate Input
with Mask
Instruction Type: output
Instruction Used To: Page
IIM - Immediate Input with Mask Update data prior to the normal input scan. 255
IOM - Immediate Output with
Mask
Update outputs prior to the normal output scan. 257
REF - I/O Refresh Interrupt the program scan to execute the
I/O scan (write outputs, service
communications, read inputs)
258
IIM
Immediate Input w/Mask
Slot I:0.0
Mask N7:0
Length 1
IIM
TIP
This instruction is used for embedded I/O only. It is not
designed to be used with expansion I/O.
Execution Time for the IIM Instruction
Controller When Rung Is:
True False
MicroLogix 1100 51.76 μs 0.87 μs
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Allen-Bradley MicroLogix 1100 Specifications

General

Processor	32-bit
Programming Software	RSLogix 500
Mounting	DIN rail or panel mount
Power Supply	24V DC
Type	Compact PLC
Digital Inputs	12
Digital Outputs	8
Analog Inputs	4 (depending on model)
Analog Outputs	Optional with expansion module
Programming Language	Ladder Logic
Operating Temperature	0 to 55 °C (32 to 131 °F)
Series	MicroLogix