You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
50 lines
998 B
50 lines
998 B
12 years ago
|
<?php
|
||
|
|
|
||
|
|
require_once dirname(__FILE__) . '/../../Phpmodbus/ModbusMasterUdp.php';
|
||
|
|
|
||
|
|
// Received bytes interpreting Mixed values
|
||
|
|
$data = Array (
|
||
|
|
"0" => 0,
|
||
|
|
"1" => 1,
|
||
|
|
"2" => -1,
|
||
|
|
"3" => pow(2,15)-1,
|
||
|
|
"4" => -pow(2,15)
|
||
|
|
);
|
||
|
|
|
||
|
|
function byte2hex($value){
|
||
|
|
$h = dechex(($value >> 4) & 0x0F);
|
||
|
|
$l = dechex($value & 0x0F);
|
||
|
|
return "$h$l";
|
||
|
|
}
|
||
|
|
|
||
|
|
function printPacket($packet){
|
||
|
|
$str = "";
|
||
|
|
$str .= "Packet: ";
|
||
|
|
for($i=0;$i<strlen($packet);$i++){
|
||
|
|
$str .= byte2hex(ord($packet[$i]));
|
||
|
|
if($i % 2)
|
||
|
|
$str .= "_";
|
||
|
|
}
|
||
|
|
$str .= "</br>";
|
||
|
|
return $str;
|
||
|
|
}
|
||
|
|
|
||
|
|
echo "Endianing off <hr>";
|
||
|
|
// Print mixed values
|
||
|
|
for($i=0;$i<count($data);$i++) {
|
||
|
|
echo $data[$i] . " --> ";
|
||
|
|
$v = IecType::iecINT($data[$i], 0);
|
||
|
|
echo printPacket($v);
|
||
|
|
"<br>";
|
||
|
|
}
|
||
|
|
|
||
|
|
echo "Endianing on <hr>";
|
||
|
|
// Print mixed values
|
||
|
|
for($i=0;$i<count($data);$i++) {
|
||
|
|
echo $data[$i] . " --> ";
|
||
|
|
$v = IecType::iecINT($data[$i], 1);
|
||
|
|
echo printPacket($v);
|
||
|
|
"<br>";
|
||
|
|
}
|
||
|
|
|
||
|
|
?>
|