41
9.
CLOCK CONFIGRATION EXAMPLE
In this example a BA578E is required to function as
a Clock. Time is to be displayed in a 24 hour format
including seconds. For external synchronisation the
displayed time is required to change to
12 : 00 : 00
when the external reset terminals are connected
together.
Both control outputs are required to close and open
once in each 24 hour period. Control output 1
(
oP1
)
is to turn
on
(close) at
07 : 30 : 00
and
off
(open) at
09 : 30 : 00
,
control output 2 (
oP2
) is to turn
on
(close)
at
18
:
00
:
00
and
off
(open) at
22
:
30
:
00
.
For this application the operator needs to adjust the
control output
on
and
off
times from the display
mode via an access code of 1111.
To prevent
tampering the instrument configuration menu is to be
protected by security code of 1209
9.1
Configuration procedure
The BA578E may be configured as a Clock on-site
without disconnection from external wiring.
Step 1 Enter the configuration menu
Enter
the
configuration
menu
by
simultaneously
pressing
(
and
)
.
Assuming a security code has not already
been entered the instrument will respond by
displaying
FunCtion
which is the first item in
the configuration menu.
See Fig 14.
Step 2 Configure instrument as a Clock
With
FunCtion
displayed press
(
to reveal
the existing function of the instrument. If
Cloc
is displayed no change is required,
therefore return to the
FunCtion
prompt by
pressing the
)
button.
If
ELAP5E
is displayed, press the
*
or
&
button to change the setting to
CLoC
followed by the
(
button which will result in
a
0000
prompt being displayed with the first
digit flashing.
This is a request for the
instruction to be confirmed by entering
5urE
using the
&
or
*
button to adjust the
flashing digit and the
(
button to move
control to the next digit. Pressing
)
will
then change the instrument to a Clock and
return the display to
FunCtion
in the
configuration menu.
See 8.4.3
Step 3 Select display format
Using the
*
or
&
button select
di5PLAY
in
the configuration menu and press
(
which
will reveal the current display format. Using
the
*
or
&
button select
24 : 00 : 00
which is
the required 24 hour format with seconds
and press
)
t
o enter the selection and
return to the configuration menu.
See 8.4.4
Step 4 Enter the synchronisation time
Using the
*
or
&
button select
5YnC t
in
the configuration menu and press
(
to
reveal the current synchronisation time with
the hours flashing.
Using the
*
or
&
push button adjust the hours to
12
and
press
(
to transfer control to the minutes.
Using the
*
or
&
push button adjust the
minutes to
00
and press
(
to transfer
control to the seconds which should be
adjusted to
00
,
in the same way. When the
seconds are set enter the selection and
return to the
5YnC t
prompt in the
configuration menu by pressing the
)
button.
See 8.4.6
Step 5 Enable control output 1 and enter the
on
and
off
times.
Using the
*
or
&
button select
oP1
in the
configuration menu and press
(
to reveal
the
EnbL
prompt in the control output 1 sub-
menu.
In this application control output 1 is
required to turn
on
and
off
once every 24
hours.
With
EnbL
displayed press
(
and
using the
*
or
&
button select
on 1
followed by the
)
button to return to the
EnbL
prompt.
The control outputs
on
time should now be
entered by selecting
oP1 : on1
in the control
output 1 sub-menu using the
*
or
&
button. Pressing
(
will reveal the existing
on
time which should be adjusted to
07
:
30
:
00
using the
*
or
&
button and the
(
button to transfer control to the following
digits. When entered return to the
oP1 : on1
prompt by pressing the
)
button.
The
off
time should now be entered by
selecting
oP1 : oFF1
f
rom the sub-menu and
adjusting the time to
09 : 30 : 00
.
Finally press
)
to return to the
oP1 : oFF1
prompt in
the sub-menu and press
)
again to return
to
oP1
in the configuration menu.
