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12.6 Processing During Forced Input and Output
12.6.1 Processing When Forced Input/Output is Initiated During RUN
1. Processing of external input (X)
-
Regardless of the state of the input from the input device, forced on/off operation will take precedence
at a contact specified for forced input/output in the above procedure B. At this time, the input LED will
not blink, however, the area of input X in the operation memory will be rewritten.
-
As for contacts not specified, the on/off state will be read according to the input status from the input
device.
2. Processing of external output (Y)
-
Regardless of the state of the result of operation, forced on/off will take precedence at a contact
specified for forced input/output in the above procedure A. At this time, the area of output Y in the
operation memory will be forcibly rewritten. External output will take place according to the input/output
update timing in the above diagram.
-
The on/off state of contacts not specified will be determined by the operation result.
3. Processing of Timer (T) and Counter (C)
-
Regardless of the timer/counter input condition, forced on/off operation will take precedence at a
contact specified for forced input/output. At this time, the contact of the timer (T) or counter (C) in the
operation memory will be rewritten. Timing and counting will not take place during control.
-
The on/off state of contacts not specified will be determined by the operation result.
Operation during operation
For small-sized PLCs FP0, FP0R, FP
Σ
and FP-X
The internal relay R or output Y specified by OT or KP instruction is rewritten according to the results of
operation. However, as the R or Y is set/reset again right before the peripheral service (as the above
procedure C), the monitoring value with the tooling software or the output to external devices is forcibly
rewritten to a specified value.
For medium-sized PLCs FP2, FP2SH
For the internal relay R and output Y specified by OT or KP instruction, the value of the forced
processing has a priority. When rewritten by a high-level instruction, the result of the instruction has a
priority.
Summary of Contents for FP0R Series
Page 1: ......
Page 6: ...iv ...
Page 14: ...xii ...
Page 15: ...Chapter 1 Functions and Restrictions of the Unit ...
Page 24: ...1 10 ...
Page 25: ...Chapter 2 Specifications and Functions of Control Unit ...
Page 38: ...2 14 ...
Page 39: ...Chapter 3 Expansion ...
Page 45: ...3 7 3 4 Terminal layout diagram Model No Terminal layout diagrams E8RS E8RM E16RS E16RM E8YRS ...
Page 48: ...3 10 ...
Page 49: ...Chapter 4 I O Allocation ...
Page 53: ...Chapter 5 Installation and Wiring ...
Page 73: ...Chapter 6 Preparation of USB Port ...
Page 77: ...6 5 5 Click Finish on the following screen to be displayed ...
Page 79: ...6 7 4 Double click on FP0R 5 Click Update Driver ...
Page 84: ...6 12 ...
Page 85: ...Chapter 7 Communication ...
Page 139: ...7 55 Sample program For Type II Use a program as below to directly specify a MODBUS address ...
Page 141: ...Chapter 8 High speed Counter Pulse Output and PWM Output Functions ...
Page 142: ...8 2 ...
Page 199: ...Chapter 9 Security Functions ...
Page 211: ...Chapter 10 Other Functions ...
Page 217: ...Chapter 11 Self Diagnostic and Troubleshooting ...
Page 227: ...Chapter 12 Precautions During Programming ...
Page 242: ...12 16 ...
Page 243: ...Chapter 13 Specifications ...
Page 254: ...13 12 ...
Page 255: ...Chapter 14 Dimensions and Others ...
Page 262: ...14 8 ...
Page 263: ...Chapter 15 Appendix ...
Page 344: ...15 82 15 7 ASCII Codes ...
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Page 347: ......
Page 348: ......