(Double Precision) - Mitsubishi MELSEC-Q/L Programming Manual

ED*, ED*P, ED/, ED/P
6.2.12 ED*, ED*P, ED/, ED/P Multiplication and division of floating-point data

(Double precision)

6.2.12
ED*, ED*P, ED/, ED/P
ED*, ED/
ED* P, ED/P
: Data to be multiplied/divided or head number of the devices where the data to be multiplied/divided is stored (real number)
S1
: Data for multiplying/dividing or head number of the devices where the data for multiplying/dividing is stored (real number)
S2
: Head number of the devices where the multiplication/division operation result will be stored (real number)
D
Setting Internal Devices
Data
Bit Word
––
S1
––
S2
––
D
Function
ED*
(1) Multiplies the 64-bit floating decimal point real number designated by
designated by and stores the operation result at the device designated by
S2
+3 +2
S1 S1
64-bit floating-point
real number
(2) Values which can be designated at
-1022
0, 2 | Designated value (stored value) | < 2
(3) When the operation results in -0 or an underflow, the result is processed as 0.
ED/
(1) Divides the 64-bit floating decimal point real number designated by
designated by and stores the operation result at the device designated by
S2
S1 +3 S1 +2
64-bit floating-point
real number
(2) Values which can be designated at
-1022
0, 2 | Designated value (stored value) | < 2
(3) When the operation results in -0 or an underflow, the result is processed as 0.
218
Command
Command
J \
R, ZR
Bit Word
+1 +3 +2
S1 S1 S2 S2
64-bit floating-point
real number
, and and which can be stored, are as follows:
S1 S2 D
1024
S1 +1 S1 S2 +3 S2 +2
64-bit floating-point
real number
, and and which can be stored, are as follows:
S1 S2 D
1024
High
Basic
performance
indicates an instruction symbol of ED*, ED/.
S1 S2
P S1 S2
Zn
U \G
––
––
––
by the 64-bit floating decimal point real number
S1
.
D
+1 D +3 D +2
S2 S2
64-bit floating-point
real number
by the 64-bit floating decimal point real number
S1
.
D
S2 +1 S2 D +3 D
64-bit floating-point
real number
Process LCPU
Redundant Universal
D
D
Constants
Other
E
––
––
–– ––
D +1 D
+2 D +1 D