Mitsubishi Electric MELSEC iQ-R Series - Subtracting BCD 8-Digit Data

270
6 BASIC INSTRUCTIONS
6.2 Arithmetic Operation Instructions
Subtracting BCD 8-digit data
DB-(P) [when two operands are set]
These instructions perform subtraction between the two sets of BCD 8-digit data specified.
■Execution condition
Setting data
■Description, range, data type
■Applicable devices
Processing details
• These instructions subtract the BCD 8-digit data in the device specified by (s) from the BCD 8-digit data in the device
specified by (d), and store the operation result in the device specified by (d).
• If an underflow occurs, the result will be as follows. In this case, SM700 does not turn on.
Ladder ST
Not supported
( Page 272 DB-(P) [when three operands are set])
FBD/LD
Not supported
( Page 272 DB-(P) [when three operands are set])
Instruction Execution condition
DB-
DB-P
Operand Description Range Data type Data type (label)
(s) Subtrahend data or the start device where subtrahend data
is stored
0 to 99999999 BCD 8-digit ANY32
(d) Minuend data or the start device where minuend data is
stored
0 to 99999999 BCD 8-digit ANY32
Operand Bit Word Double word Indirect
specification
Constant Others
X, Y, M, L,
SM, F, B, SB,
FX, FY
J\ T, ST, C, D, W,
SD, SW, FD, R,
ZR, RD
U\G, J\,
U3E\(H)G
Z LT, LST,
LC
LZ K, H E $
(s)   
(d)   
(d)+1, (s)+1: Upper 4 digits
(d), (s): Lower 4 digits
RnCPU
RnENCPU
RnSFCPU RnSFCPURnPCPURnPCPU
(Standard) (Safety)
(Redundant) (Process)
(s) (d)
(d)(d)+1 (s)(s)+1 (d)(d)+1
-
0032345690 871068 90 547612
Filled with 0s.
2134567921 345678 99 999999
-