Delta MH300 Series - Page 939

Chapter 16 PLC Function ApplicationsMH300
16-76
API
ESUB
Subtract binary floating point numbers
121
D
P
bit device
Word device
16-bit command
－
－
－
－
32-bit command (13 STEP)
DESUB
Continuous
execution type
DESUBP
Pulse
execution type
Flag signal: none
X
Y
M
K
H
KnX
KnY
KnM
T
C
D
S1
＊ ＊ ＊
S2
＊ ＊ ＊
D
＊
Notes on operand usage:
Refer to
the function specifications table for each device in series
for the scope of device usage.

S
1
: minuend. S
2
: subtrahend. D: difference.
 Subtracts the content of the register designated by S
2
from the content of the
register designated by S
1
, and stores the difference in the register designated by
D; subtraction is performed entirely using binary floating point numbers.
 If the source operand S
1
or S
2
designates a constant K or H, the command
converts that constant into a binary floating point number for use in subtraction.
 In the situation when S
1
and S
2
designate identical register numbers, if a
“continuous execution” command is employed, when conditional contact is ON,
the register performs subtraction once during each scan. You generally use pulse
execution type commands (DESUBP) under ordinary circumstances.
 When X0=ON, subtracts a binary floating point number (D1, D0) from a binary
floating point number (D3, D2), and stores the results in (D11, D10).
X0
DESUB
D0
D2
D10
 When X2 =ON, subtracts the binary floating point number (D1, D0) from K1234
(which is automatically converted to a binary floating point number), and stores
the results in (D11, D10).
X2
DESUB
D0K1234 D10