LS Industrial Systems XBC-DN10E, User Manual

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Chapter 6 Instruction Details
XBC E-Type Main Unit 6-110 Ver. 1
6.21.2 D2R, D2RP, D2L, D2LP
Instruction
Area Available
Step
Flag
P M K F L T C S Z D.x R.x
Co
nst.
U N D R
Error
(F110)
Zero
(F111)
Carry
(F112)
D2R(P)
D2L(P)
S O O O O O O O - - - - O O O O O
2~4 - - -
D O O O - O O O - - - - - O O O O
Operand Description Data Type
S Area Number where Double Integer Data is saved, or Double Integer Data DINT
D Device Position to save data converted to Real Data Format REAL/LREAL
1) D2R (Double Integer to Real)
(1) D2R(P) converts S+1,S specified 32-Bit Double Integer data to Real Number(32-Bit) and saves in D+1, D.
(2) If 32-bit Interger data value exceeds valid range (24-bit) of Floating point Real data, accuracy becomes lower
and inaccuracy error flag (F0057A) is set. PLC operation status does not change.
2) D2L (Double Integer to Long real)
(1) D2L(P) converts S+1,S specified 32-Bit Double Integer data to Long Real number (64-Bit) to save in
D+3,D+2,D+1,D.
3) Program Example
(1) In case of Double Integer data ‘812121’ is saved in 2 Word data area from P1000 to P1001. If Input signal
P00000 is On, Double Integer data ‘812121’ is converted to Real data in 2 Word area from P1100 to P1101.
.
D2R P1000 P1100
P00000
D2R,
D2L
means
P S D
D2RP,
D2LP
S D
(12345678)
S+1,S
h614E h00BC
D D+1
b31 b0 b15
h614E h4B3C
b31 b0 b15
(12345678)
S+1,S h614E h00BC
D D+3
b31 b0 b15
h8C29 h4167
b63 b32 b48
hC000 h0000
b16 b0
D+2 D+1