Mitsubishi FX3G 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 FX3G Series Specifications

General

Model	FX3G Series
Power Supply	AC 100-240V or DC 24V
Program Capacity	32, 000 steps
Execution Speed	0.21 µs/basic instruction
Communication Options	RS-422, USB, Ethernet
Expansion Modules	Analog, digital, communication
Programming Language	Ladder Logic, Instruction List
Built-in Functions	High-speed counters, pulse output
Analog I/O	Available via expansion modules