303 Publication 1766-RM001A-EN-P - October 2008
Chapter
18
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. 303
IOM - Immediate Output with
Mask
Update outputs prior to the normal output scan. 305
REF - I/O Refresh Interrupt the program scan to execute the
I/O scan (write outputs, service
communications, read inputs)
306
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 1400 10.9098 µs 0.2064 µs
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