Remote Control System TT801 – User Guide
MU-TT801-AN rev.6 September 2009
9
Mooring Recovery Operation: ‘R Pinger’ command sending example
AR8x1 or RT8x1 case
1.
Prior sending any release command, it is strongly recommended to relocate the
Acoustic Release (AR800 series for example) by sending RANGING or Diagnostic
command.
2.
Set up TT801 to execute ‘Pinger’ operation with suitable
ARM+’Pinger’ command codes and reception parameters
3.
Activate the command transmission. TT801 transmits once the ARM code.
4.
Upon detection of its ARM code, AR8x1 unit transmits an acknowledgement pulse
(CAF).
5.
TT801 detects CAF pulse and the distance in meters between TT801 and AR8x1.
6.
TT801 transmits the ‘Pinger’ code. Upon receipt of this command, the
AR8x1 replies in turn by sending a second CAF pulse, which is also used to measure
again the distance.
7.
Upon completion of the rotor rotation, the release hook opens and AR8x1 transmits a
CAF pulse to confirm execution of release operation.
8.
In addition, as pinger mode has been specified, AR8x1 switches to Pinger operation
for 3 minutes time: AR8x1 transmits PFR acoustic pulses at a rate (default is 5 s) at
Pinger Frequency.TT801 detects these PFR pulses and displays the Pinger rate.
Figure 3 – Relocation example, release and pinger operation
Summary of Contents for TT801
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