Added support for double (64bit double precision floating point) data type to API

Added

• support for double (64bit double precision floating point) data type to API. This requires PHP 7.2+ as it uses https://www.php.net/manual/en/function.pack.php E and e formats. (#103)

2.3.1: fix PHP8.1 problem where `Types::parseAsciiStringFromRegister()` fail…

Added

• Use PHP 8.1 in CI flow.
• examples/index.php now supports FC3 and FC4 requests.

Fixed

• From PHP 8.1 Types::parseAsciiStringFromRegister() fails to convert extended ASCII (8bit) characters to UTF-8. Introduced
  Charset::$defaultCharset to be able to set default charset used to convert strings.

2.3.0

• Allow high level API setting custom endian for string address with ReadRegistersBuilder and StringReadRegisterAddress classes.

Allow high level API setting custom endian for each address

• Allow high level API setting custom endian for each address with ReadRegistersBuilder and ReadRegisterAddress classes.

fix BinaryStreamConnection reading problems, improve examples

Fixed

• BinaryStreamConnection endless loop (CPU @ 100%) when stream is ready for reading but stream returns no data at all (#73)

Added

• Example for Modbus server examples/example_response_server.php

Changed

• Changed examples to use Packet::isCompleteLength()

handle packet fragmentation

Added

• Added functions to check is received data is complete/error Modbus TCP packet (PR #63)
  • Packet::isCompleteLength
  • ErrorResponse::is

Changed

• Changed StreamHandler to read data until complete packet is received. Previously we read only once from stream
  and naively assumed that Modbus TCP packet can not be fragmented over multiple TCP packets/ multiple stream reads.
  This fixed #61.

Escape stty command for SerialStreamCreator to avoid unescaped arguments

Security

• Escape stty command for SerialStreamCreator to avoid unescaped arguments (#54)

Adds Function 23 and High level API to compose Coil (fc1/2) requests

Added

• Added high level API to compose Coil (fc1/2) requests. See (#49):
  • ModbusTcpClient\Composer\Read\ReadCoilsBuilder
  • ModbusTcpClient\Composer\Write\WriteCoilsBuilder
• Added 'serial' protocol support to BinaryStreamConnection. See examples/rtu_usb_to_serial_stream.php how to use it.
• Added example to read modbus RTU from Usb to rs-485 adapter and SHT20 sensor (#50)
• Adds Function 23 (0x17) Read/Write Multiple registers support (#47)
• Started changelog

Changed

• Adds request time on example request page
• (BREAKING change) abstract class ModbusTcpClient\Composer\Address changed to interface

fix Write Single Register (FC=06) validation

fix #39 Write Single Register (FC=06) value validation not allowing usigned int16 values to be used

fixes for ReadRegistersBuilder how it splits addresses to separate requests

fixes #33 case when address is at 0 location but logic that splits addresses to request ignores that address