Mitsubishi FX3G Series Programming Manual

563
FX3G/FX3U/FX3GC/FX3UC Series
Programming Manual - Basic & Applied Instruction Edition
21 Real Time Clock Control – FNC160 to FNC169
21.4 FNC163 – TSUB / RTC Data Subtraction
21
FNC160-FNC169 Real Time Clock Control
22
FNC170-FNC179 External Device
23
FNC180 Alternate Instructions
24
FNC181-FNC189 Others
25
FNC190-FNC199 Block Data Operation
26
FNC200-FNC209 Character String Control
27
FNC210-FNC219 Data Operation 3
28
FNC220-FNC249 Data Comparison
29
FNC250-FNC269 Data Table Operation
30
FNC270-FNC275 Ex-Device Inverter Comms
Cautions
1) Number of occupied devices
Three devices are occupied by , and respectively.
Make sure that these devices are not used in other controls for the machine.
2) When utilizing the time (hour, minute, and second) of the built-in PLC real time clock
Read the values of special data registers using the TRD (FNC166) instruction, and then specify those word
devices as the operands.
Program example
When the operation result is smaller than "00:00:00"
S 1 S 2 D
X000
FNC163
TSUB
D 10 D 20 D 30
S 1  S 2  D 
−
D 11 30 (minute)
D 10 10 (hour)
D 12 10 (second)
D 21 10 (minute)
D 20 3 (hour)
D 22 5 (second)
D 31 20 (minute)
D 30 7 (hour)
D 32 5 (second)
→
10:30:10 3:10:5 7:20:5
( D10, D11, D12)
− (D20, D21, D22)
→ ( D30, D31, D32)
−
S 1 
20 (minute)
5 (hour)
40 (second)
S 2 
10 (minute)
18 (hour)
5 (second)
D 
10 (minute)
11 (hour)
35 (second)
→
11:10:3518:10:55:20:40
← 5 − 18= − 13 (<0)

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