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Cleaned up the code, fixed broken phpdoc tags, formatting

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pull/1/head 0.9.1
Ondřej Hruška 9 years ago
parent 7d058ee526
commit dd5a892fb6
6 changed files with 1745 additions and 1666 deletions
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  1. 1
      .gitignore
  2. 223
      src/IecType.php
  3. 2622
      src/ModbusMaster.php
  4. 39
      src/ModbusMasterTcp.php
  5. 40
      src/ModbusMasterUdp.php
  6. 448
      src/PhpType.php

1
.gitignore vendored
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@ -1,4 +1,5 @@
/vendor /vendor
composer.lock composer.lock
.idea/
*~ *~

223
src/IecType.php
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@ -8,12 +8,12 @@ namespace PHPModbus;
* This source file is subject to the "PhpModbus license" that is bundled * This source file is subject to the "PhpModbus license" that is bundled
* with this package in the file license.txt. * with this package in the file license.txt.
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2013 Jan Krakora * @copyright Copyright (c) 2004, 2013 Jan Krakora
* @license PhpModbus license * @license PhpModbus license
* @category Phpmodbus * @category Phpmodbus
* @package Phpmodbus * @package Phpmodbus
* @version $id$ * @version $id$
*/ */
/** /**
@ -22,115 +22,120 @@ namespace PHPModbus;
* The class includes set of IEC-1131 data type functions that converts a PHP * The class includes set of IEC-1131 data type functions that converts a PHP
* data types to a IEC data type. * data types to a IEC data type.
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2010 Jan Krakora * @copyright Copyright (c) 2004, 2010 Jan Krakora
* @package Phpmodbus * @package Phpmodbus
*/ */
class IecType { class IecType
{
/**
* iecBYTE
*
* Converts a value to IEC-1131 BYTE data type
*
* @param int $value from 0 to 255
* @return int IEC BYTE data type
*
*/
public static function iecBYTE($value)
{
return chr($value & 0xFF);
}
/** /**
* iecBYTE * iecINT
* *
* Converts a value to IEC-1131 BYTE data type * Converts a value to IEC-1131 INT data type
* *
* @param value value from 0 to 255 * @param int $value to be converted
* @return value IEC BYTE data type * @return int IEC-1131 INT data type
* *
*/ */
public static function iecBYTE($value) { public static function iecINT($value)
return chr($value & 0xFF); {
} return self::iecBYTE(($value >> 8) & 0x00FF) .
self::iecBYTE(($value & 0x00FF));
}
/** /**
* iecINT * iecDINT
* *
* Converts a value to IEC-1131 INT data type * Converts a value to IEC-1131 DINT data type
* *
* @param value value to be converted * @param int $value to be converted
* @return value IEC-1131 INT data type * @param int $bigEndian defines endian codding (little endian == 0, big endian == 1)
* * @return int IEC-1131 INT data type
*/ *
public static function iecINT($value) { */
return self::iecBYTE(($value >> 8) & 0x00FF) . public static function iecDINT($value, $bigEndian = 0)
self::iecBYTE(($value & 0x00FF)); {
} // result with right endianness
return self::endianness($value, $bigEndian);
}
/** /**
* iecDINT * iecREAL
* *
* Converts a value to IEC-1131 DINT data type * Converts a value to IEC-1131 REAL data type. The function uses function @use float2iecReal.
* *
* @param value value to be converted * @param int $value to be converted
* @param value endianness defines endian codding (little endian == 0, big endian == 1) * @param bool $bigEndian defines endian codding (little endian == 0, big endian == 1)
* @return value IEC-1131 INT data type * @return int IEC-1131 REAL data type
* */
*/ public static function iecREAL($value, $bigEndian = 0)
public static function iecDINT($value, $endianness = 0) { {
// result with right endianness // iecREAL representation
return self::endianness($value, $endianness); $real = self::float2iecReal($value);
} // result with right endianness
return self::endianness($real, $bigEndian);
}
/** /**
* iecREAL * float2iecReal
* *
* Converts a value to IEC-1131 REAL data type. The function uses function @use float2iecReal. * This function converts float value to IEC-1131 REAL single precision form.
* *
* @param value value to be converted * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
* @param value endianness defines endian codding (little endian == 0, big endian == 1) * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes
* @return value IEC-1131 REAL data type * @ Georgia Tech 21-Nov-2007] or
*/ * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
public static function iecREAL($value, $endianness = 0) { *
// iecREAL representation * @param float $value to be converted
$real = self::float2iecReal($value); * @return int IEC REAL data type
// result with right endianness */
return self::endianness($real, $endianness); private static function float2iecReal($value)
} {
// get float binary string
/** $float = pack("f", $value);
* float2iecReal // set 32-bit unsigned integer of the float
* $w = unpack("L", $float);
* This function converts float value to IEC-1131 REAL single precision form. return $w[1];
* }
* For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
* [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007] or
* [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
*
* @param float value to be converted
* @return value IEC REAL data type
*/
private static function float2iecReal($value) {
// get float binary string
$float = pack("f", $value);
// set 32-bit unsigned integer of the float
$w = unpack("L", $float);
return $w[1];
}
/**
* endianness
*
* Make endianess as required.
* For more see http://en.wikipedia.org/wiki/Endianness
*
* @param int $value
* @param bool $endianness
* @return int
*/
private static function endianness($value, $endianness = 0) {
if ($endianness == 0)
return
self::iecBYTE(($value >> 8) & 0x000000FF) .
self::iecBYTE(($value & 0x000000FF)) .
self::iecBYTE(($value >> 24) & 0x000000FF) .
self::iecBYTE(($value >> 16) & 0x000000FF);
else
return
self::iecBYTE(($value >> 24) & 0x000000FF) .
self::iecBYTE(($value >> 16) & 0x000000FF) .
self::iecBYTE(($value >> 8) & 0x000000FF) .
self::iecBYTE(($value & 0x000000FF));
}
/**
* endianness
*
* Make endianess as required.
* For more see http://en.wikipedia.org/wiki/Endianness
*
* @param int $value
* @param bool $bigEndian
* @return int
*/
private static function endianness($value, $bigEndian = 0)
{
if ($bigEndian == 0) {
return
self::iecBYTE(($value >> 8) & 0x000000FF) .
self::iecBYTE(($value & 0x000000FF)) .
self::iecBYTE(($value >> 24) & 0x000000FF) .
self::iecBYTE(($value >> 16) & 0x000000FF);
} else {
return
self::iecBYTE(($value >> 24) & 0x000000FF) .
self::iecBYTE(($value >> 16) & 0x000000FF) .
self::iecBYTE(($value >> 8) & 0x000000FF) .
self::iecBYTE(($value & 0x000000FF));
}
}
} }
?>

2622
src/ModbusMaster.php
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39
src/ModbusMasterTcp.php
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@ -10,11 +10,11 @@ namespace PHPModbus;
* *
* *
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @license PhpModbus license * @license PhpModbus license
* @category Phpmodbus * @category Phpmodbus
* @tutorial Phpmodbus.pkg * @tutorial Phpmodbus.pkg
* @package Phpmodbus * @package Phpmodbus
* @version $id$ * @version $id$
* *
*/ */
@ -30,21 +30,22 @@ namespace PHPModbus;
* - FC 16: write multiple registers * - FC 16: write multiple registers
* - FC 23: read write registers * - FC 23: read write registers
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @package Phpmodbus * @package Phpmodbus
* *
*/ */
class ModbusMasterTcp extends ModbusMaster { class ModbusMasterTcp extends ModbusMaster
/** {
* ModbusMasterTcp /**
* * ModbusMasterTcp
* This is the constructor that defines {@link $host} IP address of the object. *
* * This is the constructor that defines {@link $host} IP address of the object.
* @param String $host An IP address of a Modbus TCP device. E.g. "192.168.1.1". *
*/ * @param String $host An IP address of a Modbus TCP device. E.g. "192.168.1.1".
function ModbusMasterTcp($host){ */
$this->host = $host; public function __construct($host)
$this->socket_protocol = "TCP"; {
} parent::__construct($host, "TCP");
}
} }

40
src/ModbusMasterUdp.php
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@ -10,11 +10,11 @@ namespace PHPModbus;
* *
* *
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @license PhpModbus license * @license PhpModbus license
* @category Phpmodbus * @category Phpmodbus
* @tutorial Phpmodbus.pkg * @tutorial Phpmodbus.pkg
* @package Phpmodbus * @package Phpmodbus
* @version $id$ * @version $id$
* *
*/ */
@ -30,22 +30,22 @@ namespace PHPModbus;
* - FC 16: write multiple registers * - FC 16: write multiple registers
* - FC 23: read write registers * - FC 23: read write registers
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @package Phpmodbus * @package Phpmodbus
* *
*/ */
class ModbusMasterUdp extends ModbusMaster { class ModbusMasterUdp extends ModbusMaster
{
/** /**
* ModbusMasterUdp * ModbusMasterUdp
* *
* This is the constructor that defines {@link $host} IP address of the object. * This is the constructor that defines {@link $host} IP address of the object.
* *
* @param String $host An IP address of a Modbus UDP device. E.g. "192.168.1.1". * @param String $host An IP address of a Modbus UDP device. E.g. "192.168.1.1".
*/ */
function ModbusMasterUdp($host){ public function __construct($host)
$this->host = $host; {
$this->socket_protocol = "UDP"; parent::__construct($host, "UDP");
} }
} }

448
src/PhpType.php
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@ -1,6 +1,7 @@
<?php <?php
namespace PHPModbus; namespace PHPModbus;
use Exception;
/** /**
* Phpmodbus Copyright (c) 2004, 2012 Jan Krakora * Phpmodbus Copyright (c) 2004, 2012 Jan Krakora
@ -8,12 +9,12 @@ namespace PHPModbus;
* This source file is subject to the "PhpModbus license" that is bundled * This source file is subject to the "PhpModbus license" that is bundled
* with this package in the file license.txt. * with this package in the file license.txt.
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @license PhpModbus license * @license PhpModbus license
* @category Phpmodbus * @category Phpmodbus
* @package Phpmodbus * @package Phpmodbus
* @version $id$ * @version $id$
* *
*/ */
@ -23,230 +24,243 @@ namespace PHPModbus;
* The class includes set of methods that convert the received Modbus data * The class includes set of methods that convert the received Modbus data
* (array of bytes) to the PHP data type, i.e. signed int, unsigned int and float. * (array of bytes) to the PHP data type, i.e. signed int, unsigned int and float.
* *
* @author Jan Krakora * @author Jan Krakora
* @copyright Copyright (c) 2004, 2012 Jan Krakora * @copyright Copyright (c) 2004, 2012 Jan Krakora
* @package Phpmodbus * @package Phpmodbus
* *
*/ */
class PhpType { class PhpType
{
/**
* bytes2float
*
* The function converts array of 4 bytes to float. The return value
* depends on order of the input bytes (endianning).
*
* @param array $values
* @param bool $bigEndian
* @return float
*/
public static function bytes2float($values, $bigEndian = 0)
{
// Set the array to correct form
$data = self::checkData($values);
// Combine bytes
$real = self::combineBytes($data, $bigEndian);
// Convert the real value to float
return (float)self::real2float($real);
}
/** /**
* bytes2float * bytes2signedInt
* *
* The function converts array of 4 bytes to float. The return value * The function converts array of 2 or 4 bytes to signed integer.
* depends on order of the input bytes (endianning). * The return value depends on order of the input bytes (endianning).
* *
* @param array $values * @param array $values
* @param bool $endianness * @param bool $bigEndian
* @return float * @return int
*/ */
public static function bytes2float($values, $endianness = 0) { public static function bytes2signedInt($values, $bigEndian = 0)
$data = array(); {
$real = 0; $data = array();
$int = 0;
// Set the array to correct form
$data = self::checkData($values);
// Combine bytes
$int = self::combineBytes($data, $bigEndian);
// In the case of signed 2 byte value convert it to 4 byte one
if ((count($values) == 2) && ((0x8000 & $int) > 0)) {
$int = 0xFFFF8000 | $int;
}
// Convert the value
return (int)self::dword2signedInt($int);
}
// Set the array to correct form /**
$data = self::checkData($values); * bytes2unsignedInt
// Combine bytes *
$real = self::combineBytes($data, $endianness); * The function converts array of 2 or 4 bytes to unsigned integer.
// Convert the real value to float * The return value depends on order of the input bytes (endianning).
return (float) self::real2float($real); *
} * @param array $values
* @param bool $bigEndian
* @return int|float
*/
public static function bytes2unsignedInt($values, $bigEndian = 0)
{
$data = array();
$int = 0;
// Set the array to correct form
$data = self::checkData($values);
// Combine bytes
$int = self::combineBytes($data, $bigEndian);
// Convert the value
return self::dword2unsignedInt($int);
}
/** /**
* bytes2signedInt * bytes2string
* *
* The function converts array of 2 or 4 bytes to signed integer. * The function converts an values array to the string. The function detects
* The return value depends on order of the input bytes (endianning). * the end of the string by 0x00 character as defined by string standards.
* *
* @param array $values * @param array $values
* @param bool $endianness * @param bool $bigEndian
* @return int * @return string
*/ */
public static function bytes2signedInt($values, $endianness = 0) { public static function bytes2string($values, $bigEndian = 0)
$data = array(); {
$int = 0; // Prepare string variable
// Set the array to correct form $str = "";
$data = self::checkData($values); // Parse the received data word array
// Combine bytes for ($i = 0; $i < count($values); $i += 2) {
$int = self::combineBytes($data, $endianness); if ($bigEndian) {
// In the case of signed 2 byte value convert it to 4 byte one if ($values[$i] != 0) {
if ((count($values) == 2) && ((0x8000 & $int) > 0)) { $str .= chr($values[$i]);
$int = 0xFFFF8000 | $int; } else {
} break;
// Convert the value }
return (int) self::dword2signedInt($int); if ($values[$i + 1] != 0) {
} $str .= chr($values[$i + 1]);
} else {
break;
}
} else {
if ($values[$i + 1] != 0) {
$str .= chr($values[$i + 1]);
} else {
break;
}
if ($values[$i] != 0) {
$str .= chr($values[$i]);
} else {
break;
}
}
}
// return string
return $str;
}
/** /**
* bytes2unsignedInt * real2float
* *
* The function converts array of 2 or 4 bytes to unsigned integer. * This function converts a value in IEC-1131 REAL single precision form to float.
* The return value depends on order of the input bytes (endianning). *
* * For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or
* @param array $values * [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes
* @param bool $endianness * @ Georgia Tech 21-Nov-2007] or
* @return int|float * [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}]
*/ *
public static function bytes2unsignedInt($values, $endianness = 0) { * @param int $value in IEC REAL data type to be converted
$data = array(); * @return float float value
$int = 0; */
// Set the array to correct form private static function real2float($value)
$data = self::checkData($values); {
// Combine bytes // get unsigned long
$int = self::combineBytes($data, $endianness); $ulong = pack("L", $value);
// Convert the value // set float
return self::dword2unsignedInt($int); $float = unpack("f", $ulong);
}
/** return $float[1];
* bytes2string }
*
* The function converts an values array to the string. The function detects
* the end of the string by 0x00 character as defined by string standards.
*
* @param array $values
* @param bool $endianness
* @return string
*/
public static function bytes2string($values, $endianness = 0) {
// Prepare string variable
$str = "";
// Parse the received data word array
for($i=0;$i<count($values);$i+=2) {
if ($endianness) {
if($values[$i] != 0)
$str .= chr($values[$i]);
else
break;
if($values[$i+1] != 0)
$str .= chr($values[$i+1]);
else
break;
}
else {
if($values[$i+1] != 0)
$str .= chr($values[$i+1]);
else
break;
if($values[$i] != 0)
$str .= chr($values[$i]);
else
break;
}
}
// return string
return $str;
}
/** /**
* real2float * dword2signedInt
* *
* This function converts a value in IEC-1131 REAL single precision form to float. * Switch double word to signed integer
* *
* For more see [{@link http://en.wikipedia.org/wiki/Single_precision Single precision on Wiki}] or * @param int $value
* [{@link http://de.php.net/manual/en/function.base-convert.php PHP base_convert function commentary}, Todd Stokes @ Georgia Tech 21-Nov-2007] or * @return int
* [{@link http://www.php.net/manual/en/function.pack.php PHP pack/unpack functionality}] */
* private static function dword2signedInt($value)
* @param value value in IEC REAL data type to be converted {
* @return float float value if ((0x80000000 & $value) != 0) {
*/ return -(0x7FFFFFFF & ~$value) - 1;
private static function real2float($value) { } else {
// get unsigned long return (0x7FFFFFFF & $value);
$ulong = pack("L", $value); }
// set float }
$float = unpack("f", $ulong);
return $float[1]; /**
} * dword2signedInt
*
* Switch double word to unsigned integer
*
* @param int $value
* @return int|float
*/
private static function dword2unsignedInt($value)
{
if ((0x80000000 & $value) != 0) {
return ((float)(0x7FFFFFFF & $value)) + 2147483648;
} else {
return (int)(0x7FFFFFFF & $value);
}
}
/** /**
* dword2signedInt * checkData
* *
* Switch double word to signed integer * Check if the data variable is array, and check if the values are numeric
* *
* @param int $value * @param int[] $data
* @return int * @return int
*/ * @throws Exception
private static function dword2signedInt($value) { */
if ((0x80000000 & $value) != 0) { private static function checkData($data)
return -(0x7FFFFFFF & ~$value)-1; {
} else { // Check the data
return (0x7FFFFFFF & $value); if (!is_array($data) ||
} count($data) < 2 ||
} count($data) > 4 ||
count($data) == 3
) {
throw new Exception('The input data should be an array of 2 or 4 bytes.');
}
// Fill the rest of array by zeroes
if (count($data) == 2) {
$data[2] = 0;
$data[3] = 0;
}
// Check the values to be number
if (!is_numeric($data[0]) ||
!is_numeric($data[1]) ||
!is_numeric($data[2]) ||
!is_numeric($data[3])
) {
throw new Exception('Data are not numeric or the array keys are not indexed by 0,1,2 and 3');
}
/** return $data;
* dword2signedInt }
*
* Switch double word to unsigned integer
*
* @param int $value
* @return int|float
*/
private static function dword2unsignedInt($value) {
if ((0x80000000 & $value) != 0) {
return ((float) (0x7FFFFFFF & $value)) + 2147483648;
} else {
return (int) (0x7FFFFFFF & $value);
}
}
/** /**
* checkData * combineBytes
* *
* Check if the data variable is array, and check if the values are numeric * Combine bytes together
* *
* @param int $data * @param int $data
* @return int * @param bool $bigEndian
*/ * @return int
private static function checkData($data) { */
// Check the data private static function combineBytes($data, $bigEndian)
if (!is_array($data) || {
count($data)<2 || $value = 0;
count($data)>4 || // Combine bytes
count($data)==3) { if ($bigEndian == 0) {
throw new Exception('The input data should be an array of 2 or 4 bytes.'); $value = (($data[3] & 0xFF) << 16) |
} (($data[2] & 0xFF) << 24) |
// Fill the rest of array by zeroes (($data[1] & 0xFF)) |
if (count($data) == 2) { (($data[0] & 0xFF) << 8);
$data[2] = 0; } else {
$data[3] = 0; $value = (($data[3] & 0xFF) << 24) |
} (($data[2] & 0xFF) << 16) |
// Check the values to be number (($data[1] & 0xFF) << 8) |
if (!is_numeric($data[0]) || (($data[0] & 0xFF));
!is_numeric($data[1]) || }
!is_numeric($data[2]) ||
!is_numeric($data[3])) {
throw new Exception('Data are not numeric or the array keys are not indexed by 0,1,2 and 3');
}
return $data; return $value;
} }
/**
* combineBytes
*
* Combine bytes together
*
* @param int $data
* @param bool $endianness
* @return int
*/
private static function combineBytes($data, $endianness) {
$value = 0;
// Combine bytes
if ($endianness == 0)
$value = (($data[3] & 0xFF)<<16) |
(($data[2] & 0xFF)<<24) |
(($data[1] & 0xFF)) |
(($data[0] & 0xFF)<<8);
else
$value = (($data[3] & 0xFF)<<24) |
(($data[2] & 0xFF)<<16) |
(($data[1] & 0xFF)<<8) |
(($data[0] & 0xFF));
return $value;
}
} }
?>
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