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Win32 uses a specific function to close socket. Reported by Petr Parýzek.
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Reported by Antti Manninen and according to Page6 in the document "MODBUS Messaging on TCP/IP Implementation Guide V1.0b", ------------------------ Unit Identifier – This field is used for intra-system routing purpose. It is typically used to communicate to a MODBUS+ or a MODBUS serial line slave through a gateway between an Ethernet TCP-IP network and a MODBUS serial line. This field is set by the MODBUS Client in the request and must be returned with the same value in the response by the server. ------------------------
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The cycle will end on a 3.0 release instead of 2.2 as intended. There are too many changes in the API to keep the same major number.
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- return only useful data client side - available in TCP when a gateway to RTU is used - need to add isolated handling of indication/confirmation messages
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A new API will be committed to remove the slave in TCP communication.
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Original patch by Sisyph (eric-paul).
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Page 23 of Modbus_Messaging_Implementation_Guide_V1_0b
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Inspired by the Clutter project and work done by Florian Forster.
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It occurs on first occurence of slave timeout (found with Valgrind 3.3.0). Reported by Henrik Munktell.
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Reported by Henrik Munktell.
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Reported and tested by Yishin Li. Real fix #333455 - IPTOS_LOWDELAY not supported on cygwin Thank to Yishin Li for the better problem description.
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- check IPTOS_LOWDELAY define in configure - generate a config.h - include the generated config.h in modbus.c
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- MAJOR changes to the API (see MIGRATION) - New unit tests - Removed TODO list - Updated NEWS & MIGRATION files
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- remove header and checksum length from modbus_param_t - use new const tables
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Invalid error check in modbus_init_listen_tcp
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modbus_check_response() crashes on an invalid exception code
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- Update the NEWS file
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It is easier to install on rpm based systems with a spec file. I don't want to update the file to each beta until the 2.0 release so I already use the 2.0 name in the spec file.
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libmodbus does not link with c++ code.