Snap7 and Qt ,PLC communication
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Check me then if I understand right.
1-->I will build a .dll using .bat according to mingw file path,I will chance in bat file.
2-->I will put in my Qt app .dll, .lib and I include the snap7.lib in .pro file
Then Qt will see both because of the .dll and .lib same folder.@ZekDe
Hi
seems fine if 2:
is
INCLUDEPATH += /path/include ( points to where ever Snap7 .h file livrd
LIBS += -L"c:/fullpath/lib" -lCatWhispererand "c:/fullpath/lib" is corrected to point to the folder that contains the DLL you just build
and CatWhisperer be replaced with actual filename -
- how can I open a command prompt in working folder
just open one and navigate to the folder using command. :)
like
cd c:\xxx\yyyYou dont convert the BAT file. u run it
It might produce a make file and you can run mingw make on it
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path=c:\MinGW32\bin;c:\MinGW32\mingw32\bin;%PATH
mingw32-make %1
this is in .bat
and he said me
It is assumed that MinGW compiler is installed in C:\MinGW32 and its release is 4.7.2.
If not, you need to modify make.bat and makefile.
My mingw like you know in another folder.I will change it in the command line? and How?And I don't stil lunderstand how the makefile will be used in Qt,Am I missing something.And Thank you so much your helps,I learned very important knowledges -
Hi (excuse my english please)
Here is the project file to compile a gui example with snap7, no libraries, all in one..
#------------------------------------------------- # # Project created by QtCreator 2016-11-17T17:37:17 # #------------------------------------------------- QT += core gui network greaterThan(QT_MAJOR_VERSION, 4): QT += widgets TARGET = test1 TEMPLATE = app # Desde http://stackoverflow.com # Finally, CONFIG(debug, debug|release) evaluates to true if CONFIG contains "debug" but not "release", or if it contains both # "debug" and "release" but "release" doesn't appear after the last occurrence of "debug". CONFIG(debug, debug|release){ DESTDIR = $$_PRO_FILE_PWD_/../debug #DEFINES += QT_NO_DEBUG } else{ DESTDIR = $$_PRO_FILE_PWD_/../release } win32:LIBS += C:\Qt\Tools\mingw530_32\i686-w64-mingw32\lib\libws2_32.a win32:LIBS += C:\Qt\Tools\mingw530_32\i686-w64-mingw32\lib\libwinmm.a INCLUDEPATH += ../snap7-full-1.4.1/release/Wrappers/c-cpp/ \ ../snap7-full-1.4.1/src/lib/ \ ../snap7-full-1.4.1/src/core/ \ ../snap7-full-1.4.1/src/sys/ SOURCES += main.cpp\ mainwindow.cpp \ client.cpp \ ../snap7-full-1.4.1/release/Wrappers/c-cpp/snap7.cpp \ ../snap7-full-1.4.1/src/core/s7_client.cpp \ ../snap7-full-1.4.1/src/core/s7_isotcp.cpp \ ../snap7-full-1.4.1/src/core/s7_micro_client.cpp \ ../snap7-full-1.4.1/src/core/s7_partner.cpp \ ../snap7-full-1.4.1/src/core/s7_peer.cpp \ ../snap7-full-1.4.1/src/core/s7_server.cpp \ ../snap7-full-1.4.1/src/core/s7_text.cpp \ ../snap7-full-1.4.1/src/lib/snap7_libmain.cpp \ ../snap7-full-1.4.1/src/sys/snap_msgsock.cpp \ ../snap7-full-1.4.1/src/sys/snap_sysutils.cpp \ ../snap7-full-1.4.1/src/sys/snap_tcpsrvr.cpp \ ../snap7-full-1.4.1/src/sys/snap_threads.cpp HEADERS += mainwindow.h \ client.h \ ../snap7-full-1.4.1/release/Wrappers/c-cpp/snap7.h \ ../snap7-full-1.4.1/src/core/s7_client.h \ ../snap7-full-1.4.1/src/core/s7_firmware.h \ ../snap7-full-1.4.1/src/core/s7_isotcp.h \ ../snap7-full-1.4.1/src/core/s7_micro_client.h \ ../snap7-full-1.4.1/src/core/s7_partner.h \ ../snap7-full-1.4.1/src/core/s7_peer.h \ ../snap7-full-1.4.1/src/core/s7_server.h \ ../snap7-full-1.4.1/src/core/s7_text.h \ ../snap7-full-1.4.1/src/core/s7_types.h \ ../snap7-full-1.4.1/src/lib/snap7_libmain.h \ ../snap7-full-1.4.1/src/sys/snap_msgsock.h \ ../snap7-full-1.4.1/src/sys/snap_platform.h \ ../snap7-full-1.4.1/src/sys/snap_sysutils.h \ ../snap7-full-1.4.1/src/sys/snap_tcpsrvr.h \ ../snap7-full-1.4.1/src/sys/snap_threads.h \ ../snap7-full-1.4.1/src/sys/sol_threads.h \ ../snap7-full-1.4.1/src/sys/unix_threads.h \ ../snap7-full-1.4.1/src/sys/win_threads.h FORMS += mainwindow.uiBut the full project is here https://drive.google.com/file/d/1AWX3xe00D-WWrQwFGi18juR8KBkYkB7V/view?usp=sharing ... also the snap7 project... i'm using qt 5.9.2 with mingw... install it with default options...
Hope this help
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Hi,
I'am intersting of this to integrate Snap7 with QtCreator,
I test your example "test1", it's compiled, but when run the "test.exe" : there is nothing !!
Have you an idea please ?
thank you in advanced@Daminos Nothing means? the windos has only two widget that show variables from plc, put a breakpoint in the following function...
void MainWindow::scan()
{
//ui->log->setText(logMessage);union U { unsigned char x[4]; float f; } u; int err = Client->DBRead(380, 160, 4, u.x); unsigned char aux; aux = u.x[0]; u.x[0] = u.x[3]; u.x[3] = aux; aux = u.x[1]; u.x[1] = u.x[2]; u.x[2] = aux; if(!err) { ui->value_0->setValue(u.f); ui->value_1->setValue(u.f); ui->value_0->setStyleSheet(""); ui->value_1->setStyleSheet(""); } else { ui->value_0->setValue(0); ui->value_1->setValue(0); ui->value_0->setStyleSheet("background-color: rgb(255, 0, 0);"); ui->value_1->setStyleSheet("background-color: rgb(255, 0, 0);"); // Connection int error = CliConnect(); if(!error) { }; } char valor; err = Client->DBRead(380, 151, 1, &valor); ui->checkBox->setChecked(valor & 0x01);}
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@mmiacca
Thanks a lot, it's worked now :D
I have another question please : are you tested this example with Logo_8 ?
Best regards, -
@Daminos good.... i do not test this with logo, only S7-400... do you change the cpu TCP/IP address and slot in the logo and in the code?
