Time change - Meridian 1 1

[Arugg]

Simple one this time.....How do you change the time on a Meridian 1? I need the LD and commands please.

 

[SneakyHawk]

Here you are:

In LD 2

Set time and date
To print the current time and date:
TTAD day-of-week day month year hour minute second
Example
TTAD WED 24 11 1976 15 41 49


To set the time and date:
STAD DAY MONTH YEAR HOUR MINUTE SECOND
Example
STAD 24 11 1976 15 41 49

Note: Except for the year, the other entries in the time of day output are 2-digit numbers. The year may be any year from 1901 to 2099 inclusive. It may be input as a full 4-digit field or as a 2-digit short form. The 2-digit short form is assumed to be in the range 1976 to 2075 and the appropriate addition is made when calculating the day-of-week and leap years.

 

[cmawbey]

if you need to automate summer/winter time changes..

For this Year Summer Time begins 31/03 and Winter time begins (I think)
27/10. To set this in the Meridian you need to use the following prompt;
FWTM which stands for Forward Time / Summer Time
The prompts are:<month> <week> <day> <hour>
To make the Summer changes for this year you would enter the following in LD
2.
FWTM 3 L 1 1
As you see for the week prompt I have placed an L, this stands for Last week
of the month, days are Sunday(1) to Saturday (7), and the hour and month
prompts are standard numerical format.

The same format is used for Winter time but the prompt is BWTM (Backwards
time)

(Easy way to remember this is Spring Forward and Fall Back!)

TDST will tell you when the changes are and SDST OFF or SDST ON will
enable/disable the daylight saving

Colin

 

[McGruff753]

You need to correct your programming. The format is 4 1 1 2
4 = Month
1 = First
1 = Sunday
2 = 2:00 AM

The time changes are 10/31/04 and 4/3/05. If you put it as 3 L 1 1, then your change would take place 3/27/05 at 1:00 AM instead of 2:00 AM, a full week early, plus the wrong hour.

Meridian 1 systems operating on software release 20 or later can be programmed to automatically change between summer time and winter time.

You can check, using overlay LD 2, to see if your system is using this feature.

Log in and access overlay LD 2.

At the . prompt type
TDST

If it says SDST ON no further programming is required except to verify the settings. (NOTE 3 L 1 1 is WRONG. It needs to be 4 1 1 2.)
If you get the following it means the feature is turned off.
.TDST
SDST OFF
FWTM 0 0 (AT 00:00 0/0/2002 )
BWTM 0 0 (AT 00:00 0/0/2002 )
.

Follow this programming sequence to activate it.

Type in the following.
.FWTM 4 1 1 2
.BWTM 10 5 1 2

To activate the feature type
.SDST ON
The following will be printed.

FWTM APR 1 SUN 2 (AT 02:00 4/4/2004 )
BWTM OCT L SUN 2 (AT 02:00 31/10/2004 )