readMultipleRegisters($unitId, $reference, $quantity);
} catch (Exception $e) {
// Print error information if any
echo $modbus;
echo $e;
exit;
}
// Received data
echo "Received Data
\n";
print_r($recData);
// Conversion
echo "32 bits types
\n";
// Chunk the data array to set of 4 bytes
$values = array_chunk($recData, 4);
// Get float from REAL interpretation
echo "REAL to Float
\n";
foreach ($values as $bytes)
echo PhpType::bytes2float($bytes) . "";
// Get integer from DINT interpretation
echo "DINT to integer
\n";
foreach ($values as $bytes)
echo PhpType::bytes2signedInt($bytes) . "";
// Get integer of float from DINT interpretation
echo "DWORD to integer (or float)
\n";
foreach ($values as $bytes)
echo PhpType::bytes2unsignedInt($bytes) . "";
echo "16 bit types
\n";
// Chunk the data array to set of 4 bytes
$values = array_chunk($recData, 2);
// Get signed integer from INT interpretation
echo "INT to integer
\n";
foreach ($values as $bytes)
echo PhpType::bytes2signedInt($bytes) . "";
// Get unsigned integer from WORD interpretation
echo "WORD to integer
\n";
foreach ($values as $bytes)
echo PhpType::bytes2unsignedInt($bytes) . "";
// Get string from STRING interpretation
echo "STRING to string
\n";
echo PhpType::bytes2string($recData) . "";