Schneider Electric SR2MAN01 user manual Change to Summer / Winter Time, Description, Access

LD Language Elements

Change to Summer / Winter Time

Description	The output of this function is in an OFF state over the entire duration of winter time,
	and switches to ON for the entire duration of summer time.
	By default, there is no change in winter / summer time. This function must be activated,
	either from the programming software, or from the front panel of the smart relay.

To activate this function, from the programming software, proceed as follows:

zdisplay the Program configuration window: :Edit → Program Configuration menu,

zSelect the Date format tab,

zCheck the Activate Summer/Winter Time Change box,

zDefine the time change dates:

z Either using one of the predefined geographic zones, z Or by manually configuring the date (month/Sunday).

To activate this function from the front panel of the smart relay, proceed as described in chapter CHANGE SUMMER/WINTER Menu, p. 99.

Note: This function is only available for smart modules that contain a real-time clock.

Access	function is accessible from the LD function bar.
This

Use as a Contact When used as a contact, this element indicates the current season.

It may be used as many times as necessary in the program. It may be used according to 2 modes: normally open or normally closed, described below.

Normally open mode:

Symbol of the normally open contact associated with a Change summer / winter time function block:

W 1

The contact is active for the entire duration of summer time.

Normally closed mode:

Symbol of the normally closed contact associated with a Change summer/winter time function block

w 1

The contact is active for the entire duration of winter time.

SR2MAN01 11/2007 141