X8 Instruction Set Reference Manual
5-24
Using the High-Speed Counter and Programmable Limit Switch
The HowPresetReached flag is set when the HSC accumulator value is less
than or equal to the high preset.
This bit is updated continuously by the HSC s whenever the PLC is in a run
mode.
UnderFlowInterrupt
The UnderFlowInterrupt flag is set when the HSC accumulator reaches to the
Underflow value and the HSC interrupt is triggered.
This bit can be used in the control program to identify that the underflow
condition caused the HSC interrupt and applied to the logic of the control
program.
This flag can be cleared by the control program and is also cleared by the HSC
whenever these conditions are detected:
• Low Preset Interrupt executes
• High Preset Interrupt executes
• Overflow Interrupt executes
• PLC enters an executing mode
OverFlowInterrupt
The OverflowInterrupt flag is set when the HSC accumulator reaches to the
Overflow value and the HSC interrupt is triggered.
This bit can be used in the control program to identify that the Overflow
condition caused the HSC interrupt and applied to the logic of the control
program.
This flag can be cleared by the control program and is also cleared by the HSC
whenever these conditions are detected:
• Low Preset Interrupt executes
• High Preset Interrupt executes
Description
Data Format
HSC Mode
Function
User Program
Access
HSC:0.UnderFlowInterrupt
Bit
2~9
Status
Read Only
Description
Data Format
HSC Mode
Function
User Program
Access
HSC:0.OverFlowInterrupt
Bit
2~9
Status
Read Only
Содержание X8 Series
Страница 1: ...Catalog Number s X8 M14DDT X8 M16DDR X8 M32DDT X8 Instruction Manual Reference Manual ...
Страница 16: ......
Страница 64: ...X8 Instruction Set Reference Manual 2 12 X8 Series PLC Memory and Data Table ...
Страница 134: ...X8 Instruction Set Reference Manual 5 38 Using the High Speed Counter and Programmable Limit Switch ...
Страница 166: ...X8 Instruction Set Reference Manual 7 8 Relay Type Bit Instructions ...
Страница 180: ...X8 Instruction Set Reference Manual 8 14 Timer and Counter Instructions ...
Страница 205: ...X8 Instruction Set Reference Manual Math Instructions 10 17 ...
Страница 206: ...X8 Instruction Set Reference Manual 10 18 Math Instructions ...
Страница 212: ...X8 Instruction Set Reference Manual 11 6 Converion Instructions ...
Страница 218: ...X8 Instruction Set Reference Manual 12 6 Logical Instructions ...
Страница 236: ...X8 Instruction Set Reference Manual 15 8 Shift and FIFO LIFO Instructions ...
Страница 242: ...X8 Instruction Set Reference Manual 16 6 Sequencing Instructions ...
Страница 252: ...X8 Instruction Set Reference Manual 18 4 Input and Output Instructions ...
Страница 280: ...X8 Instruction Set Reference Manual 20 12 PID Control ...
Страница 296: ...X8 Instruction Set Reference Manual 21 16 ASCII Instructions ...
Страница 308: ...X8 Instruction Set Reference Manual 22 12 Communications Instructions ...
Страница 312: ...Appendix A 4 System Error Code ...
Страница 313: ...Appendix B MSG Instruction Error Code MSG Instruction Error Code ...
Страница 322: ...Appendix B 10 MSG Instruction Error Code ...
Страница 325: ...ASCII Character Set Appendix C 3 ...
Страница 326: ...Publication number X8 RM001A EN September 2012 ...
Страница 327: ...Copyright 2012 RS Automation Co Ltd All rights reserved ...