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Good evening,
Does someone can send me (or indicate me where find it) a very simple a source code of a program that implement a modbus/tcp server publishing a value in a coil (address 0x 01, for exam…
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hi , i have some questions.
i am currently working on the project that is about communicating plc and pc'S .Formerly , we used opc core components .Now , we decided to use modbus tcp . We have tags.i …
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In order to create a multi-threaded TCP server, it is necessary to duplicate the modbus_t TCP context, but no function currently exists to do this. Additionally, the modbus_t structure points to conn…
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## When I compile libmodbus (3.0.3) my compiler (g++ 4.7.1)says:
../xline/libmodbus/src/modbus.c: In function 'modbus_set_error_recovery':
## ../xline/libmodbus/src/modbus.c:1406:5: warning: comparis…
ghost updated
11 years ago
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https://github.com/mk8/libmodbus/commit/0c9af75219100ca1803ba143111824f1f38776d9
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checking winsock2.h usability... no
checking winsock2.h presence... yes
configure: WARNING: winsock2.h: present but cannot be compiled
configure: WARNING: winsock2.h: check for missing prerequisit…
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I use Wago 750-342 (http://www.wago.com/wagoweb/documentation/750/eng_manu/342/m034200e.pdf)
for a testing device. They ship for Modbus communiction their own dll
(MBT.dll). But there is a problem usi…
ghost updated
11 years ago
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modbus_rtu_set_serial_mode() needs to be called after modbus_connect(). Can't find this information in the documentation. Another option is to change the function modbus_rtu_set_serial_mode() to be ab…
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Hello,
I'm trieing to use libmodbus library (3.0.3) in a Ansi C Visual Studio 2005 console application.
First I tried to simply include modbus.h into my projekt (using also stdint.h and inttypes.h).…