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CHAPTER6 FUNCTIONS
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6.5 C
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(4) Changing and reading clock data
(a) Changing clock data
Clock data can be changed either by GX Developer or a program.
1) Changing clock data by GX Developer
Select [Online]
[Set time] to open the Set time screen and change the clock data.
2) Changing clock data by a program
Use the DATEWR instruction (instruction for writing clock data) to change the clock data.
Figure 6.11 shows a program for writing the set clock data to D0 to D6.
For details of the DATEWR instruction, refer to the following.
MELSEC-Q/L Programming Manual (Common Instruction)
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When clock data is changed, the clock of 1/1000 second is reset to 0.
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Year data settable by GX Developer is up to 2037.
Figure 6.10 Set time screen
Figure 6.11 Program example for writing clock data
Write request
0
X0
Year 1999
Month 8
Day 10
Hour 11
Minute 35
Second 24
Day of the week
Tuesday: 2
MOVP
K1999
DO
MOVP
K8
D1
MOVP
D2
MOVP
D3
MOVP
D4
MOVP
D5
MOVP
D6
DATEWR
DO
K10
K11
K35
K24
K2
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