Mitsubishi FX3U Series Programming Manual

320
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
12 Data Operation – FNC 40 to FNC 49
12.4 FNC 43 – SUM / Sum of Active Bits
Caution
While the command input is OFF, the instruction is not executed.
The output of the number of bits in the ON status is latched in the previous status.
Program example
When X000 is ON, the number of bits in the ON status in D0 is counted, and stored to D2.
X000
S  D 
The number of "1" in D0 is stored to D2.
FNC 43
SUM
D 0 D 2
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
0 1 0 1 0 1 0 1 0 1 0 1 0 1 1 1
D 0 = K0 D 2 = K0
M8020=ON
M8020=OFF
32 16 8 4 2 1
D 0 = K21847 D 2 = K9
0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 1
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0
Zero flag
Zero flag

Mitsubishi FX3U Series Specifications

General

Model	FX3U Series
Program Memory	64k steps
Execution Speed	0.065 μs/basic instruction
Type	PLC (Programmable Logic Controller)
Power Supply	100-240V AC
I/O Points	Up to 384
Communication	USB
Expansion	Supported via expansion modules
High-Speed Counters	Up to 6 channels
Analog Input/Output	Available via expansion modules
Temperature Range	0 to 55°C
Programming Language	Ladder Logic, Structured Text
Built-in Functions	PID control
Humidity	5 to 95% (non-condensing)