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FX3G/FX3U/FX3UC Series Programmable Controllers
Programming Manual - Basic & Applied Instruction Edition
37 Operation of Special Devices (M8000 -, D8000 -)
37.2 Supplement of Special Devices (M8000 - and D8000 -)
31
FNC275-FNC279
Data
Transfer 3
32
FNC280-FNC289
High Speed
Processing 2
33
FNC290-FNC299
Extension File
Register
34
FNC300-FNC305
FX
3U
-CF-ADP
35
SFC•STL
Programming
36
Interrupt
Function
37
Special Device
38
Error Code
A
Version Up
Information
B
Execution Times
2. Method by program
1) Method using TWR (FNC167) instruction dedicated to time setting.
→ For details, refer to Section 21.8.
2) Method using M8015 and D8013 to D8019.
When not using TWR (FNC167) instruction dedicated to time setting, the following program can be used for time
setting.
Point
a) While M8015 is OFF, the registers for date and time cannot be changed.
Make sure to set M8015 to ON, and then input date and time.
b) When inputting the time, set the time several minutes ahead of the current time.
When the actual time reaches the set time, set M8015 to OFF from ON to make the new time valid and to
begin the real time clock again.
c) If values indicating infeasible date, time and day of the week are input (Example: February 30, 2006), the time
cannot be set. Input the correct date, time and day of the week.
3. Method by programming tool
1) Starting the time change
Set M8015 to ON by forced ON/OFF.
2) By using the data register value change function in the device monitor of the programming tool, input the date and
time (several minutes ahead) to each data register.
3) Finishing the time change
When the actual time reaches the input data, reset M8015 by forced ON/OFF.
Point
a) While M8015 is OFF, the registers for date and time cannot be changed.
Make sure to set M8015 to ON, and then input date and time.
b) When inputting the time, set the time several minutes ahead of the current time.
When the actual time reaches the set time, set M8015 to OFF from ON to make the new time valid and to
begin the real time clock again.
c) If values indicating infeasible date and time are input (Example: February 30, 2006), the time cannot be set.
Input the correct date and time.
X000
M 0
FNC 12
MOV
K 30 D8013
PLF M 0
M8015
FNC 12
MOV
K 20
D8014
FNC 12
MOV
K 10 D8015
FNC 12
MOV
K 25 D8016
FNC 12
MOV
K 4 D8017
FNC 12
MOV
K 0 D8018
FNC 12
MOV
D8019
X001
Second data
Minute data
Hour data
Day data
Month data
Year data
Day-of-the-week data
+/- 30 seconds correction
K 2
M8017
When the actual time reaches the input set time,
turn the input switch X000 OFF to set the time
and start the clock operation.
±
30 seconds correction
Every time X001 is set from OFF to ON, the
second data of the clock is corrected. (When the
second data is from 0 to 29, it is set to 0. When
the second data is from 30 to 59, it is set to 0
and the minute data is incremented by "1".)
Example:
10:20:30 on April 25 Tuesday in 2000
Set the time 2 to 3 minutes ahead of the actual
time, write the program on the left to the PLC,
and turn RUN X000 ON.
indicates a set item.