16
Note:
On power up/reset the master DAU sends a series of
time packets every minute for the first five minutes
and then every hour to the slave DAUs.
Additionally, with the Satellite Info option displayed, pressing
<Enter> again will give details on the antenna status.
The antenna status will be reported as passed, open or short.
These antenna status messages are self explanatory, and the
antenna status option is included to facilitate diagnosis of
potential cable/antenna problems:
# passed - Antenna correctly detected
# OPEN - Open circuit in cable from GPS module to
antenna
# SHORT - Short circuit in cable from GPS module to
antenna
This antenna status information is available to be updated every
minute, after receipt of the GPS time string from the GPS
module (which is observed as a short flash of the GPS LED on
the keypad).
Upon receipt of a GPS time packet, the antenna status displayed
on the LCD of the DAU may be refreshed by pressing <Enter>
Note:
The Antenna Status option is not available for Slave
DAUs or Master DAUs without GPS.
Examine IDs?
To examine the DAU node and network ID use the key
sequence:
<Enter> <down arrow> <down arrow> <down arrow>
<down arrow> <Enter>
This displays the current DAU node within the specified
network.
Disable Triggers
To disable the triggers use the key sequence:
<Enter><down arrow> <down arrow> <down arrow>
<down arrow> <down arrow> <Enter>
The LCD will then display the following:
Esc to confirm
Enter to cancel
Use <Enter> to cancel disabling triggers.
Use <Esc> to display the following:
DISABLED 60min
Esc to re-enable
Use <up arrow> to increase disable time in 30min steps.
Use <down arrow> to decrease disable time in 30min steps.
Use <enter> to default to 60min disabling.
Use <Esc> to re-enable triggers.
Channel Check?
Channel Check Mode Overview
Channel check mode enables the DAU to display analog and
event information on the LCD display to facilitate checking of
user inputs. It can assist in commissioning or checking of user
inputs to an DAU where a pc running Replay
™
Plus is not
available.
Using the integral keypad of an DAU the user may select an
individual analog channel and its present, secondary value will
be displayed on the LCD. This value will be updated
approximately once per second.
Similarly, event state may be displayed. Groups of 16 events are
displayed simultaneously on the LCD where, by default, a ‘1’
indicates current flow in the event channel and a ‘0’ indicates no
current flow in the event channel.
Channel check mode only allows display of analog and event
channels that are physically available and connected to the IDM
DAU. Quantities computed by the DAU (such as real and
reactive power) are not available for selection by Channel
Check Mode.
To access channel check mode use the key sequence:
<Enter> <up arrow> <up arrow> <up arrow> <up
arrow> <up arrow> <up arrow> <Enter>
The LCD will then display the following:
Enter to confirm
Esc to cancel
Use <Enter> to start channel check mode in the last used
mode, or in the analog check mode if the IDM DAU has been
restarted since this option was last used.
There are two modes of operation, analog and event mode, to
display analogue values and event states respectively.
Use <Esc> to terminate channel check mode.
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