
Advanced Instruction Set
Chapter 6
612
Figure 6.5
Immediate
Input Instruction
I/OScan
ProgramScan
Immediateinputinstruction
interruptsprogramscan
Returnsto
Program
Scan
Module
Group
(input)
16bitsfrom
onemodulegroup
writteninto
inputimagetableword
Examinebitsinword
112hereinprogram
Word112
2
10151I
Function: The instruction is always considered logic true and execution takes
place whether or not other rung conditions allow logic continuity.
Immediate Output Update
Symbol: -(IOT)-
Purpose: Transfers one word from the output image table to the output module
group.
Syntax: Programmed at the output side of the logic rung. When programming
only assign output image table bit addresses (Figure 6.6).
Function: Execution occurs when logic continuity is established.
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