Mitsubishi Electric FX3G SERIES User Manual

492
FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
18 Floating Point – FNC110 to FNC139
18.4 FNC116 – ESTR / Floating Point to Character String Conversion
18.4 FNC116 – ESTR / Floating Point to Character String Conversion
Outline
This instruction converts binary floating point data into a character string (ASCII codes) having a specified number of
digits.
On the other hand, STR (FNC200) instruction converts binary data into a character string (ASCII codes).
→ For a character string, refer to Section 5.3.
→ For handling of floating point, refer to Subsection 5.1.3.
→ For STR (FNC200) instruction, refer to Section 26.1.
1. Instruction format
2. Set data
3. Applicable devices
Explanation of function and operation
1. 32-bit operation (DESTR and DESTRP)
The contents (binary floating point data) of [ +1, ] are converted into a character string according to the
contents specified by , +1 and +2, and then stored to devices and later. A real number can
be directly specified as .
• The data after conversion varies depending on the display specification stored in .
Operand Type Description Data Type
Binary floating point data to be converted or device storing data Real number (binary)
Head device number storing the display specification of a numeric value to be converted 16-bit binary
Head device number storing converted character string Character string
Oper-
and
Type
Bit Devices Word Devices Others
System User Digit Specification System User
Special
Unit
Index
Con-
stant
Real
Number
Charac-
ter String
Pointer
XYMTCSD  .b KnX KnY KnM KnS T C D R U\G V Z Modify K H E "  "P
33 3 3 3
33333333 3 3
3333333 3 3
−
−
Mnemonic Operation Condition
16-bit Instruction
DESTR
DESTRP
Mnemonic Operation Condition
32-bit Instruction
13 steps
Continuous
Operation
Pulse (Single)
Operation
P
FNC 116
ESTR
D
S 1
S 2
D
S 1
S 2
D
S 1 S 1
S 2 S 2 S 2 D
S 1
Command
input
FNC116
DESTR
S 1  S 2  D 
S 2
0: Decimal point
format
1: Exponent
format
Total number of
digits
Number of digits
of decimal part
2 to 24 can be set.
The data after conversion varies
depending on the display
specification stored in .
+2
+1
S 2 
S 2 
S 2 
S 2 

Mitsubishi Electric FX3G SERIES Specifications

General

Model	FX3G SERIES
Input Voltage	100-240 VAC or 24 VDC
Protection Class	IP20
Programming Language	Instruction List
Communication Ports	RS-422, RS-485, USB
Execution Speed	0.21 μs/basic instruction
High-speed Processing	Yes
Analog I/O	Optional (via expansion boards)
Expansion Modules	Yes
Operating Temperature	0°C to 55°C
Type	Programmable Logic Controller (PLC)