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44_TEK603: initial commit
git-svn-id: https://svn.fhem.de/fhem/trunk@6602 2b470e98-0d58-463d-a4d8-8e2adae1ed80
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eisler
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fhem/FHEM/44_TEK603.pm
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248
fhem/FHEM/44_TEK603.pm
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# $Id$
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####################################################################################################
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#
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# 44_TEK603.pm
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#
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# Copyright: Stephan Eisler
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# Email: fhem.dev@hausautomatisierung.co
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#
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# This file is part of fhem.
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#
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# Fhem is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 2 of the License, or
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# (at your option) any later version.
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#
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# Fhem is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with fhem. If not, see <http://www.gnu.org/licenses/>.
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#
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####################################################################################################
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package main;
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use strict;
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use warnings;
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sub TEK603_Initialize($);
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sub TEK603_define($$);
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sub TEK603_doInit($);
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sub TEK603_undef($$);
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sub TEK603_ready($);
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sub TEK603_read($);
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sub TEK603_reconnect($);
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sub TEK603_Initialize($) {
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my ($hash) = @_;
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require $attr{global}{modpath} . '/FHEM/DevIo.pm';
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$hash->{ReadFn} = 'TEK603_read';
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$hash->{ReadyFn} = 'TEK603_ready';
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$hash->{DefFn} = 'TEK603_define';
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$hash->{UndefFn} = 'TEK603_undef';
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$hash->{AttrList} = 'do_not_notify:0,1 dummy:1,0 loglevel:0,1,2,3,4,5,6 ';
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}
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sub TEK603_define($$) {
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my ($hash, $def) = @_;
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my @a = split('[ \t][ \t]*', $def);
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my $name = $a[0];
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my $dev = $a[2];
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$hash->{DEF} = $dev;
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my $msg = '';
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if( @a != 3) {
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$msg = 'wrong syntax: define <name> TEK603 {none | devicename}';
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Log3 $name, 3, $msg;
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return $msg;
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}
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DevIo_CloseDev($hash);
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$hash->{PORTSTATE} = $hash->{STATE};
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if($dev eq 'none') {
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Log3 $name, 3, "device is none, commands will be echoed only";
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$attr{$name}{dummy} = 1;
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return undef;
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}
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$hash->{DeviceName} = $dev;
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my $ret = DevIo_OpenDev($hash, 0, 'TEK603_doInit');
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return $ret;
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}
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sub TEK603_doInit($) {
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my ($hash) = @_;
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my $po = $hash->{USBDev};
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my $dev = $hash->{DeviceName};
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my $name = $hash->{NAME};
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# Parameter 115200, 8, 1, even, none
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$po->reset_error();
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$po->baudrate(115200);
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$po->databits(8);
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$po->stopbits(1);
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$po->parity('none');
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$po->handshake('none');
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$po->dtr_active(1);
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$po->rts_active(1);
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if (!$po->write_settings) {
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undef $po;
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$hash->{STATE} = $name . 'Error on write serial line settings on device ' . $dev;
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Log3 $name, 3, $hash->{STATE};
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return $hash->{STATE} . "\n";
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}
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Log3 $name, 3, "connected to device $dev";
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$hash->{STATE} = 'open';
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$hash->{PORTSTATE} = $hash->{STATE};
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return undef;
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}
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sub TEK603_undef($$) {
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my ($hash, $name) = @_;
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foreach my $d (sort keys %defs) {
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if(defined($defs{$d}) && defined($defs{$d}{IODev}) && $defs{$d}{IODev} == $hash) {
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Log3 $name, 4, "deleting port for $d";
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delete $defs{$d}{IODev};
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}
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}
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DevIo_CloseDev($hash);
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$hash->{PORTSTATE} = $hash->{STATE};
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return undef;
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}
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sub TEK603_ready($) {
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my ($hash) = @_;
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return DevIo_OpenDev($hash, 1, 'TEK603_doInit') if($hash->{STATE} eq 'disconnected');
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# This is relevant for windows/USB only
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my $po = $hash->{USBDev};
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my ($BlockingFlags, $InBytes, $OutBytes, $ErrorFlags) = $po->status;
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return ($InBytes > 0);
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}
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sub TEK603_read($) {
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my ($hash) = @_;
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my $name = $hash->{NAME};
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my $buf = DevIo_SimpleRead($hash);
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return '' if(!defined($buf));
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# convert to hex string
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$hash->{buffer} = unpack ('H*', $buf);
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my $lenght = hex(substr($hash->{buffer},4,4))*2;
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#my $cmd = substr($hash->{buffer},8,2);
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#my $flags = substr($hash->{buffer},10,2);
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my $time = sprintf '%02d:%02d:%02d', hex(substr($hash->{buffer},12,2)), hex(substr($hash->{buffer},14,2)), hex(substr($hash->{buffer},16,2));
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#my $epromStart = hex(substr($hash->{buffer},18,4));
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#my $epromEnd = hex(substr($hash->{buffer},22,4));
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my $payloadlenght = $lenght - 26 - 4;
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my $payload = substr($hash->{buffer},26,$payloadlenght);
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#my $crc = substr($hash->{buffer},26 + $payloadlenght,4);
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# payload
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my $temp = sprintf '%.2f', ((hex(substr($payload, 0,2)) - 40 - 32) / 1.8);
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my $Ullage = hex(substr($payload,2,2)) * 256 + hex(substr($payload,4,2));
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my $RemainingUsableLevel= hex(substr($payload,6,2)) * 256 + hex(substr($payload,8,2));
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my $TotalUsableCapacity = hex(substr($payload,10,2)) * 256 + hex(substr($payload,12,2));
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#Log3 $name, 5, $hash->{buffer};
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Log3 $name, 5, "Time:$time Temp:$temp Ullage:$Ullage RemainingUsableLevel:$RemainingUsableLevel TotalUsableCapacity:$TotalUsableCapacity";
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readingsBeginUpdate($hash);
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readingsBulkUpdate($hash, "Time", $time);
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readingsBulkUpdate($hash, "Temperature", $temp);
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readingsBulkUpdate($hash, "Ullage", $Ullage);
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readingsBulkUpdate($hash, "RemainingUsableLevel", $RemainingUsableLevel);
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readingsBulkUpdate($hash, "TotalUsableCapacity", $TotalUsableCapacity);
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readingsEndUpdate($hash, 1);
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}
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sub TEK603_reconnect($) {
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my ($hash) = @_;
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my $name = $hash->{NAME};
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Log3 $name, 3, "Wrong Data received. We reconnect Device";
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# Sometime the device sends a lot of waste and we must reconnect.
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DevIo_CloseDev($hash);
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$hash->{PORTSTATE} = $hash->{STATE};
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select(undef, undef, undef, 0.1);
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DevIo_OpenDev($hash, 0, 'TEK603_doInit');
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}
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1;
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=pod
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=begin html
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<a name="TEK603"></a>
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<h3>TEK603</h3>
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<ul>
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The TEK603 is a fhem module for the Tekelek TEK603 Eco Monitor a liquid level monitor designed for residential and small commercial applications.
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It works in conjunction with a TEK653 Sonic transmitter mounted on the top of the tank.
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<br />
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<a name="TEK603_Define"></a>
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<b>Define</b>
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<ul>
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<code>define <name> TEK603 /dev/ttyUSBx</code><br />
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<br />
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Defines an TEK603 Eco Monitor device connected to USB.<br /><br />
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Examples:
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<ul>
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<code>define OelTank TEK603 /dev/ttyUSB0</code><br />
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</ul>
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</ul><br />
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<a name="TEK603_Readings"></a>
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<b>Readings</b>
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<ul>
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<li>Time<br />
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TEK603 internal Time</li>
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<li>Temperature<br />
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Sensor Temperature</li>
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<li>Ullage<br />
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Sensor Measured Ullage</li>
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<li>RemainingUsableLevel<br />
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This is the usable level, with deductions due to the sensor offset and outlet height. (Liters)</li>
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<li>TotalUsableCapacity<br />
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This is the usable volume, with deductions due to the sensor offset and outlet height. (Litres)</li>
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</ul><br />
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</ul><br />
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=end html
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=cut
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