Sigma - Configuration of the GMT/BST changeover.

Issue

What is the best way to implement the GMT/BST changeover on Sigma?

Product Line

Satchwell Sigma

Environment

Sigma

Time

Date

Daylight saving

Summer

Winter

GMT

BST

Cause

Correct implementation of the process.

Resolution

The recommended procedure is as follows;

Set all Sigma server PC's to "Automatically adjust the clock for daylight saving changes", this is achieved in the Date and Time properties.

Set up the Sigma Scheduler with a schedule or schedules to retime the controller/s. We suggest that you do not retime all controller/s at once, but do a section at a time, see below.

Server retimed at 02:00

Controllers retimed at 02:02 (Schedule 1)
Controllers retimed at 02:12 (Schedule 2)
Controllers retimed at 02:22 (Schedule 3)
ETC.

This allows time for any logging to returned to the server, before the next retime occurs.

The schedules are configured as shown below. 

Firstly the action is created, notice that a range of controllers is chosen.

The second part is to associate the action with the schedule.