X8 Instruction Set Reference Manual
Math Instructions
10
-
5
• Zero: represented by an exponent and a mantissa of zero.
• Denormalized : Since denormalized numbers have very small, insignificant
values, they are treated as zero in order to increase the performance.
•
∞
: represented by an exponent of 255 and a mantissa part of zero. Both
positive and negative infinity are generated when operations overflow.
• NaN(Not a Number): represents mathematically undefined input and especially
it is used in floating-point arithmetic. For example, most floating point devices
given a invalid message and ret
u
rns NaN value for operations about square
root of negative.
ADD - Add
SUB - Subtract
Instruction Type: Output
ADD: Use the ADD instruction to add one value to another value (Source A
+Source B) and place the sum in the Destination.
SUB: Use the SUB instruction to subtract one value from another value
(Source A - Source B) and place the result in the Destination.
MUL - Multiply
DIV - Divide
Instruction Type: input
ADD
EN
ENO
IN 1
N4.0 -
240 <
IN 2
N4.3 -
4 <
SUB
EN
ENO
IN 1
N4.4 -
240 <
IN 2
N4.3 -
4 <
MUL
EN
ENO
IN 1
N4.3 -
4 <
IN 2
N4.0 -
240 <
DIV
EN
ENO
IN 1
N4.4 -
240 <
IN 2
N4.3 -
4 <
OUT - N4.8
> 960
OUT - N4.9
> 60
Summary of Contents for X8 Series
Page 1: ...Catalog Number s X8 M14DDT X8 M16DDR X8 M32DDT X8 Instruction Manual Reference Manual ...
Page 16: ......
Page 64: ...X8 Instruction Set Reference Manual 2 12 X8 Series PLC Memory and Data Table ...
Page 166: ...X8 Instruction Set Reference Manual 7 8 Relay Type Bit Instructions ...
Page 180: ...X8 Instruction Set Reference Manual 8 14 Timer and Counter Instructions ...
Page 205: ...X8 Instruction Set Reference Manual Math Instructions 10 17 ...
Page 206: ...X8 Instruction Set Reference Manual 10 18 Math Instructions ...
Page 212: ...X8 Instruction Set Reference Manual 11 6 Converion Instructions ...
Page 218: ...X8 Instruction Set Reference Manual 12 6 Logical Instructions ...
Page 236: ...X8 Instruction Set Reference Manual 15 8 Shift and FIFO LIFO Instructions ...
Page 242: ...X8 Instruction Set Reference Manual 16 6 Sequencing Instructions ...
Page 252: ...X8 Instruction Set Reference Manual 18 4 Input and Output Instructions ...
Page 280: ...X8 Instruction Set Reference Manual 20 12 PID Control ...
Page 296: ...X8 Instruction Set Reference Manual 21 16 ASCII Instructions ...
Page 308: ...X8 Instruction Set Reference Manual 22 12 Communications Instructions ...
Page 312: ...Appendix A 4 System Error Code ...
Page 313: ...Appendix B MSG Instruction Error Code MSG Instruction Error Code ...
Page 322: ...Appendix B 10 MSG Instruction Error Code ...
Page 325: ...ASCII Character Set Appendix C 3 ...
Page 326: ...Publication number X8 RM001A EN September 2012 ...
Page 327: ...Copyright 2012 RS Automation Co Ltd All rights reserved ...