Panasonic FP Series User Manual

Arithmetic instructions
374
Part III FP Instructions
F45_BSUB
4-digit BCD subtraction
15 . . 12 10 . . 8 7 . . 4 3 . . 0
d
0 0 1 0 0 0 0 1 0 0 0 1 0 0 0 1
16# (BCD)
15 . . 12 10 . . 8 7 . . 4 3 . . 0
s
0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 1
16# (BCD)
15 . . 12 10 . . 8 7 . . 4 3 . . 0
d
0 0 1 0 0 0 0 1 0 0 0 0 0 0 0 0
16# (BCD)
2 1 1 1
0 0 1 1
2 1 0 0
Bit
Result value 16#2100 (BCD)
Trigger: ON
Bit
Bit
Example value 16#0011 (BCD)
Example value 16#2111 (BCD)
This instruction also exists as a P instruction (for FP2/2SH, FP3/5, FP10/10SH PLC types), which
is only executed at the rising edge of the EN trigger. Select [Insert P instruction] from the
"Instructions" pane if you require a P instruction. To facilitate reuse, the instruction then appears
under "Recently used" in the pop-up menu. Press <Ctrl>+<Shift>+<v> within the programming
area to open the list of recently used elements.
PLC types
Availability of F45_BSUB (see page 1325)
Variable Data type Function
s WORD subtrahend, 16-bit area for 4-digit BCD data or equivalent
constant
d WORD minuend and result, 16-bit area for 4-digit BCD data
For Relay T/C Register Constant
s WX WY WR WL SV EV DT LD FL dec. or hex.
d - WY WR WL SV EV DT LD FL -
Description
Subtracts the 4-digit BCD equivalent constant or 16-bit area for 4-digit BCD data specified by s
from the 16-bit area for 4-digit BCD data specified by d if the trigger EN is in the ON-state. The
result is stored in d.
Data types
Operands

Panasonic FP Series Specifications

General

Mounting	DIN rail
Type	PLC
Communication Interface	RS-232, RS-485, Ethernet (depending on model)
Input Voltage	100-240V AC or 24V DC (depending on model)
Output Type	Relay, Transistor
I/O Points	Varies by model
Operating Temperature	0°C to 55°C
Dimensions	Varies by model
Weight	Varies by model