X8 Instruction Set Reference Manual
Math Instructions
10
-
3
• Set(1): If the source is positive number, 32,767 (word) or 2,147,483,647 (Long
Word) is stored as output value. If the source is negative number, -32,767
(WORD) or -2,147,483,647 (Long Word) is stored.
• Clear(0): According to each data type, the unsigned truncated value of the
Source is stored.
Math Arithmetic Flag
The SR flag shows Math and Arithmetic instruction state places Math
category in the SR data table
.
Following shows the descriptions of the each items
.
• SR2.2.14: Math Overflow Selection
If Overflow bit is set, output value can be different according to this bit.
• SR2.5.0: Overflow Trap
This bit is set when the Overflow flag is set.
Beca
u
se the Overflow flag can effect to the system, this bit can be cleared force
d
ly
on the ladder by the RST instruction.
• SR2.0.0: Carry Flag
This bit is set when the Carry flag is set.
• SR2.0.1: Underflow , Overflow Flag
This bit is set when the result of a math instruction does not fit into the output
target range.
• SR2.0.2: Zero Flag
This bit is set when the result is Zero.
• SR2.0.3 : Sign Flag
This bit is set when the output result is negative. If negative value, the MSB
(Most Significant Bit) is set.
• SR2.13: Register Low:
The remainder is stored in SR2.13 when the division operation.
• SR2.14: Register High:
The quotient is stored in SR2.14 when the division operation.
The data types of X8 Series PLC operations, and arithmetic instructions are
determined according to table below.
Содержание X8 Series
Страница 1: ...Catalog Number s X8 M14DDT X8 M16DDR X8 M32DDT X8 Instruction Manual Reference Manual ...
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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 ...