766
7 APPLICATION INSTRUCTIONS
7.9 Real Number Instructions
Processing details
• These instructions convert the BCD floating-point format data stored in the device specified by (s1) and later to single-
precision real number data in accordance with the number of decimal places stored in the device specified by (s2), and
store the converted data in the device number specified by (d) and later.
• For the sign in (s1) and exponent sign in (s1)+3, 0 is set for positive and 1 is set for negative.
• A value of 0 to 38 can be set for the BCD exponent in (s1)+4.
• A value of 0 to 7 can be set for the number of decimal part digits in the device specified by (s2).
Ex.
When 6 is specified in (s2)
Operation error
(s1): Sign (Positive: 0, Negative: 1)
(s1)+1, (s1)+2: BCD (7 digits)
(s1)+3: Sign of exponent (Positive: 0, Negative: 1)
(s1)+4: BCD exponent (0 to 38)
(s2): Number of digits in the decimal part (0 to 7)
(d)+1, (d): Single-precision real number
Error code
(SD0)
Description
3401H
The value set to (s1) as sign data is not 0 or 1.
A value other than 0 to 9 exists at any digit of data set to (s1)+1 and (s1)+2.
The value set to (s1)+3 as sign data of exponent is not 0 or 1.
The exponent data set to (s1)+4 is out of the range, 0 to 38.
The value set to (s2) as the number of digits in the decimal part is out of the range, 0 to 7.
3403H
The data output from (d) exceeds the following range. (An overflow has occurred.)
|(d)|<2
128
(d)+1
(d)
(s1)
(s1)+1
(s1)+2
(s1)+3
(s1)+4
(s2)
Sign
BCD (7 digits)
Sign of exponent
Number of digits in the
decimal part (0 to 7)
BCD exponent (0 to 38)
(d)+1
(d)
(s1)
(s1)+1
(s1)+2
(s1)+3
(s1)+4
(s2)
1
5423H
0321H
0
2
6
3
-
. 2 1 5 4 2 3 E + 2
3215423H
Содержание MELSEC iQ-R Series
Страница 1: ...MELSEC iQ R Programming Manual Instructions Standard Functions Function Blocks ...
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Страница 24: ...22 INDEX 2092 INSTRUCTION INDEX 2093 REVISIONS 2104 WARRANTY 2105 TRADEMARKS 2106 ...
Страница 34: ...32 MEMO ...
Страница 35: ...33 PART 1 PART 1 OVERVIEW This part consists of the following chapter 1 OVERVIEW ...
Страница 68: ...66 1 OVERVIEW 1 5 Precautions on Programming MEMO ...
Страница 204: ...202 5 SEQUENCE INSTRUCTIONS 5 3 Output Instructions Operation error There is no operation error ...
Страница 470: ...468 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 472: ...470 6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions Operation error There is no operation error ...
Страница 479: ...6 BASIC INSTRUCTIONS 6 6 Data Conversion Instructions 477 6 Operation error There is no operation error ...
Страница 504: ...502 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 518: ...516 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 520: ...518 6 BASIC INSTRUCTIONS 6 7 Data Transfer Instructions Operation error There is no operation error ...
Страница 754: ...752 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 756: ...754 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 758: ...756 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 760: ...758 7 APPLICATION INSTRUCTIONS 7 9 Real Number Instructions Operation error There is no operation error ...
Страница 895: ...7 APPLICATION INSTRUCTIONS 7 16 Ramp Signal Instruction 893 7 Operation error There is no operation error ...
Страница 917: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 915 7 Operation error There is no operation error ...
Страница 919: ...7 APPLICATION INSTRUCTIONS 7 20 Data Processing Instructions 917 7 Operation error There is no operation error ...
Страница 1415: ...13 SFC PROGRAM INSTRUCTIONS 13 1 SFC Control Instructions 1413 13 Operation error There is no operation error ...
Страница 1448: ...1446 14 REDUNDANT SYSTEM INSTRUCTIONS 14 2 Disabling Enabling System Switching MEMO ...
Страница 1795: ...25 TYPE CONVERSION FUNCTIONS 25 1 Converting BOOL to WORD 1793 25 Operation error There is no operation error ...
Страница 1805: ...25 TYPE CONVERSION FUNCTIONS 25 10 Converting WORD to DINT 1803 25 Operation error There is no operation error ...
Страница 1819: ...25 TYPE CONVERSION FUNCTIONS 25 21 Converting INT to DWORD 1817 25 Operation error There is no operation error ...
Страница 1950: ...1948 32 STRING FUNCTIONS 32 2 Extracting String Data From the Left Right Operation error There is no operation error ...
Страница 1972: ...1970 33 TIME DATA TYPE FUNCTIONS 33 4 Division MEMO ...
Страница 2067: ...APPX Appendix 5 PID Control Program Examples 2065 A 252 Set PID control data for loop 2 ...
Страница 2082: ...2080 APPX Appendix 6 Process Control Program Examples 129 Set the default value of the loop tag ...
Страница 2093: ...APPX Appendix 7 List of Loop Tag Memory Areas Used by Process Control Instructions 2091 A MEMO ...
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