Mitsubishi FX3U Series Programming Manual

572
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
21 Real Time Clock Control – FNC160 to FNC169
21.9 FNC169 – HOUR / Hour Meter
2. 32-bit operation
[ +1, ] : Time after which is set to ON
Specify the high-order side in +1, and the low-order side in .
[ +1, ] : Current value in units of hour
The high-order side is stored in +1, and the low-order side is stored in .
+2 : Current value less than one hour (unit: second)
: Alarm output destination
It turns ON when the current value [ +1, ] exceeds the time specified in .
• Specify a latched (battery backed) type data register as so that the current value data can be continuously
used even after the PLC turns OFF.
If a general data type register is used, the current value data is cleared when the power to the PLC is turned OFF or
when the PLC mode switches from STOP to RUN.
• Even after the alarm output turns ON, the measurement is continued.
• When the current value [ +1, ] reaches the maximum value of 32-bit data, the measurement is stopped.
For continuing the measurement, clear the current value stored in to +2.
Caution
Number of occupied devices
Two (16-bit operation) or three (32-bit operation) devices are occupied by .
Make sure that these devices are not used in other controls for the machine.
Program example
In the program example shown below, when the accumulated X000 ON time exceeds 300 hours, Y005 turns ON.
The current value less than one hour is stored in D201 in units of second.
: Time after which is set to ON
Specify a value in units of hour.
: Current value in units of hour
+1 : Current value less than one hour (unit: second)
: Alarm output destination
It turns ON when the current value exceeds the time specified in .
(In this example, it turns ON when the current value becomes 300 hours 1 second.)
Command
input
FNC169
DHOUR
S  D 1  D 2 
S S D 2
S 1 S 1
D 1 D 1
D 1 D 1
D 1
D 2
D 1 D 1 S
D 1
D 2
D 1 D 1
D 1 D 1
D 1
X000
FNC169
HOUR
K300
S 
D 200
D 1 
Y005
D 2 
S D 2
D 1
D 1
D 2
D 1 S

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)