Conversion instructions
657
Part
III F
P
Instructions
F90_DECO
Decode hexadecimal -> bit state
n
specifies the starting bit position and the number of bits to be decoded using hexadecimal data:
Bit No. 0 to 3: number of bits to be decoded
Bit No. 8 to 11: starting bit position to be decoded
(The bits No. 4 through No. 7 and No. 12 through No. 15 are invalid.)
e.g. when
n
= 16#0404, four bits beginning at bit position four are decoded.
Relationship between number of bits and occupied data area for decoded result:
Number of bits to
be decoded
Data area required for
the result
Valid bits in the area for
the result
1 1-word
2-bit*
2 1-word
4-bit*
3 1-word
8-bit*
4 1-word
16-bit
5 2-word
32-bit
6 4-word
64-bit
7 8-word
128-bit
8 16-word
256-bit
*Invalid bits in the data area required for the result are set to 0.
This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which
is only executed at the rising edge of the EN trigger. Select
[Insert P instruction]
from the
"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears
under "Recently used" in the pop-up menu. Press
<Ctrl>+<Shift>+<v>
within the programming
area to open the list of recently used elements.
PLC types
Availability of
F90_DECO
(see page
)
Variable
Data type
Function
s
source 16-bit area or equivalent constant to be decoded
n
control data to specify the starting bit position and number of
bits to be decoded
d
ANY16
starting 16-bit area for storing decoded data (destination)
The variables
s, n
and
d
have to be of the same data type.
Description
Decodes the contents of 16-bit data specified by
s
according to the contents of
n
if the trigger EN is
in the ON-state. The decoded result is stored in the area starting with the 16-bit area specified by
d
.
Data types
Содержание FP Series
Страница 27: ...Chapter 1 Basics ...
Страница 60: ...Chapter 2 Data transfer instructions ...
Страница 62: ...Chapter 3 Arithmetic instructions ...
Страница 88: ...Chapter 4 Bitwise Boolean instructions ...
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Страница 94: ...Chapter 5 Bit shift instructions ...
Страница 100: ...Bit shift instructions 99 Part II IEC Instructions LD ...
Страница 102: ...Bit shift instructions 101 Part II IEC Instructions LD ...
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Страница 104: ...Chapter 6 Comparison instructions ...
Страница 106: ...Comparison instructions 105 Part II IEC Instructions LD ...
Страница 108: ...Comparison instructions 107 Part II IEC Instructions LD ...
Страница 114: ...Chapter 7 Conversion instructions ...
Страница 136: ...Conversion instructions 135 Part II IEC Instructions Body with and without EN ENO ...
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Страница 244: ...Conversion instructions 243 Part II IEC Instructions Body ...
Страница 253: ......
Страница 254: ...Chapter 8 Selection instructions ...
Страница 261: ......
Страница 262: ...Chapter 9 String instructions ...
Страница 280: ...String instructions 279 Part II IEC Instructions LD ...
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Страница 282: ...Chapter 10 Date and time instructions ...
Страница 306: ...Chapter 11 Bistable instructions ...
Страница 311: ......
Страница 312: ...Chapter 12 Edge detection instructions ...
Страница 315: ......
Страница 316: ...Chapter 13 Counter instructions ...
Страница 324: ...Chapter 14 Timer instructions ...
Страница 341: ......
Страница 342: ...Chapter 15 Arithmetic instructions ...
Страница 360: ...Arithmetic instructions 359 Part III FP Instructions LD ST IF DF start THEN F35_INC increment_value END_IF ...
Страница 362: ...Arithmetic instructions 361 Part III FP Instructions LD ST IF DF start THEN F36_DINC increment_value END_IF ...
Страница 384: ...Arithmetic instructions 383 Part III FP Instructions LD ST IF DF start THEN F37_DEC decrement_value END_IF ...
Страница 431: ...Arithmetic instructions 430 Part III FP Instructions LD ST IF start THEN F87_ABS abs_value END_IF ...
Страница 433: ...Arithmetic instructions 432 Part III FP Instructions ST IF start THEN F88_DABS abs_value END_IF ...
Страница 449: ...Arithmetic instructions 448 Part III FP Instructions LD ST IF DF start THEN F85_NEG negotiate_value END_IF ...
Страница 508: ...Chapter 16 Bistable instructions ...
Страница 512: ...Chapter 17 Bitwise Boolean instructions ...
Страница 555: ......
Страница 556: ...Chapter 18 Bit shift instructions ...
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Страница 604: ...Chapter 19 Comparison instructions ...
Страница 622: ...Chapter 20 Conversion instructions ...
Страница 687: ...Conversion instructions 686 Part III FP Instructions LD ...
Страница 702: ...Chapter 21 Counter instructions ...
Страница 711: ......
Страница 712: ...Chapter 22 Data transfer via communication ports ...
Страница 785: ......
Страница 786: ...Chapter 23 Data transfer via network ...
Страница 798: ...Data transfer via network 797 Part III FP Instructions LD ...
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Страница 806: ...Chapter 24 Data transfer within the PLC ...
Страница 866: ...Chapter 25 Date and time instructions ...
Страница 877: ......
Страница 878: ...Chapter 26 Selection Instructions ...
Страница 883: ......
Страница 884: ...Chapter 27 Edge detection instructions ...
Страница 890: ...Chapter 28 High speed counter instructions ...
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Страница 914: ...Chapter 29 Timer instructions ...
Страница 937: ......
Страница 938: ...Chapter 30 Process control instructions ...
Страница 966: ...Process control instructions 965 Part III FP Instructions ...
Страница 970: ...Chapter 31 FP e display instructions ...
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Страница 980: ...Chapter 32 System register instructions ...
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Страница 998: ...Chapter 33 Special instructions ...
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Страница 1008: ...Chapter 34 Program execution control instructions ...
Страница 1020: ...Chapter 35 Pulse output instructions ...
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Страница 1092: ...Chapter 36 Analog unit instructions ...
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Страница 1134: ...Chapter 37 GT panel instructions ...
Страница 1138: ...Chapter 38 High speed counter instructions ...
Страница 1164: ...High speed counter instructions 1163 Part IV Tool Instructions ...
Страница 1172: ...Chapter 39 Pulse output instructions ...
Страница 1177: ...Pulse output instructions 1176 Part IV Tool Instructions LD ...
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Страница 1246: ...Chapter 40 Appendix Programming Information ...
Страница 1306: ...Appendix Programming Information 1305 ...