Mitsubishi FX3U 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 FX3U Series Specifications

General

Brand	Mitsubishi
Model	FX3U Series
Category	Controller
Language	English