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plc advanced functions - 16.18<br />

A<br />

X<br />

UID<br />

B<br />

FAL<br />

<strong>Control</strong> R6:0<br />

length 5<br />

position 0<br />

Mode all<br />

Destination #N7:5<br />

Expression #N7:0 + 5<br />

UIE<br />

Figure 16.18<br />

Disabling Interrupts<br />

16.4 INPUT AND OUTPUT FUNCTIONS<br />

16.4.1 Immediate I/O Instructions<br />

The input scan normally records the inputs before the program scan, <strong>and</strong> the output<br />

scan normally updates the outputs after the program scan, as shown in Figure 16.19.<br />

Immediate input <strong>and</strong> output instructions can be used to update some of the inputs or outputs<br />

during the program scan.

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