Delta AS Series Programming Manual page 882

Operand
D
When the DST state is ON and in mode 2, the operand and descriptions are shown below.
Operand
S
S
1
S
2
S +1
2
S
3
S
4
S +1
4
S
5
Operand
3. This instruction is to enable / disable the daylight saving time function. Whether the contact is normally open or close
will not affect the daylight saving time setting. (refer to example 2 for more details on how to switch the contact M0
OFF=>ON) You can reset the daylight saving time by executing the instruction again. There is no need to disable
and then enable this function to reset the daylight saving time.
4. When setting the daylight saving time to start on April 1
the real-time clock goes like below.
Daylight saving time function disabled
st
1 March, 3 o'clock
st
31 March, 3 o'clock
st
1 April, 3 o'clock
st
1 May, 3 o'clock
st
1 June, 3 o'clock
st
1 July, 3 o'clock,
st
1 August, 3 o'clock
st
31 August, 3 o'clock
st
1 September, 3 o'clock
The DST state is ON (enabled).
Function code is 7, indicating the DST state is ON and in mode 2.
The month to start daylight saving time
S : settings for the week to start daylight saving time
2
S +1: on which weekday of the S
2
The month to end daylight saving time
S : settings for the week to end daylight saving time
4
S +1: on which weekday of the S
4
Time that changed due to daylight saving time; unit: minute
The DST state is ON (enabled).
Ch ap te r 6 Ap pl ie d Instruc ti ons
Description
Description
2
4
st
and to end on September 1
Daylight saving time function enabled
st
1 March, 3 o'clock
st
31 March, 3 o'clock
st
1 April, 4 o'clock
st
1 May, 4 o'clock
st
1 June, 4 o'clock
st
1 July, 4 o'clock
st
1 August, 4 o'clock,
st
31 August, 4 o'clock
st
1 September, 3 o'clock
st
, and the duration is 60 minutes;
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