Technical data

Installation & Operation Manual GM-TTT

Page 33

Having “b OFF“ at menu USER MOD. selected, use →

→→

→ button to change the

offset. Use enter button to store a new offset.

Offset nn Description

In Automatic setting of the offset such that the result of adding the

offset to the time information gives the reference time, i.e.

OFFS1 or OFFS2 respectively (dependent on the current time

zone) of menu ZONE will be inverted and encoded:

Reference time = UTC, GM-TTT generates a local time with

DST (‘Mode’ parameter at menu REFER - MODE1 = u). Using

the offset it is possible to compute the UTC again.

Reference time = a local time with DST, GM-TTT generates

UTC (‘Mode‘ parameter at menu REFER - MODE1 = i). Using

the offset it is possible to compute the local time again.

Example: reference time = UTC, GM-TTT generates CET/CEST

with an offset of one hour at normal time (OFFS1 = 01) and

an offset of two hours at DST (OFFS2 = 02). During normal

time the offset encoded at BG5 and BG7 is equal to minus one

hour (= +23 hours = 46

= 101110

), during DST the offset

encoded at BG5 and BG7 is equal to minus two hours (= +22

hours = 44

= 101100

00 - 47 Fixed offset for all times, independent from a time zone. The

two-digits decimal number represents the half hour steps.

Example: 47 = + 23 hours 30 minutes, or - 30 minutes!

C DATE-7

D DATE-8

There are more formats of the date selectable, similar to the selection “2 DATE“.

Please look at the following table for a survey of the date formats.

Table of BCD date formats:

BG8 7 BG6 5 BG4 3 BG2 1

2 DATE U U D D M M Y Y

3 STATUS S S D D M M Y Y

5 DATE-2 D D M M Y Y Y Y

6 DATE-3 Y Y M M D D U U

7 DATE-4 U U Y Y M M D D

8 DATE-5 U Y Y M M D D U

9 DATE-6 D D M M Y Y U U

C DATE-7 M M D D Y Y U U

D DATE-8 U U M M D D Y Y

D D = day, M M = month, Y Y = year. The characters U U get the user defined

data of that binary group, see 3.2.2 SET USER.