Delta DVP-SA2 User Manual

3. Instruction Set
3-411
API Mnemonic Operands Function
Controllers
ES2/EX2/
EC5
SS2
SA2
SE
SX2
118 D EBCD P Float to scientific conversion
Type
OP
Bit Devices Word devices Program Steps
X Y M S K H KnX KnY KnM KnS T C D E F
DEBCD, DEBCDP: 9
steps
S
*
D
*
PULSE
16-bit
32-bit
ES2/EX2/
EC5
SS2
SA2
SE
SX2
ES2/EX2/
EC5
SS2
SA2
SE
SX2
ES2/EX2/
EC5
SS2
SA2
SE
SX2
Operands:
S: Source device D: Conversion result
Explanation
1. The instruction converts the binary floating point value in S to decimal floating point value and
stores the results in the register specified by D.
2. PLC floating point is operated by the binary floating point format. DEBCD instruction is the
specific instruction used to convert binary floating point to decimal floating point.
3. Flag: M1020 Zero flag, M1021 Borrow flag, M1022 Carry flag
If absolute value of the result exceeds the max. floating point value, carry flag M1022 = ON.
If absolute value of the result is less than the min. floating point value, borrow flag M1021 = ON.
If the conversion result is 0, zero flag M1020 = ON.
Program Example:
When X0 = ON, the binary floating point value in D1, D0 will be converted to decimal floating point
and the conversion result is stored in D3, D2.
D0DEBCD
X0
D2
D0D1
D2D3
Binary
Floating Point
23 bits for real number, 8 bits for exponent
1 bit for sign bit
[D2] * 10
[D3]
Decimal
Floating Point
Exponent Real number
Real number
Exponent

Delta DVP-SA2 Specifications

General

Brand	Delta
Model	DVP-SA2
Category	Controller
Language	English