diagslave is a simple free command line based Modbus slave simulator and testing utility. It is available for Windows, Linux and QNX.
Modpoll is a free command line based Modbus master simulator and test utility. It is available for Linux, Windows, and QNX.
modbus_close(mb); modbus_free(mb); return0; } 4.编译测试代码 现学了Makefile语法,凑合用。需要注意的是,windows下libmodbus依赖于ws2_32.dll库,需要添加编译参数-lws2_32: .PHONY: all all: test_rtu_master test_rtu_slave test_rtu_master : test_rtu_master.o modbus.o modbus-tcp.o modbus-rt...
all: test_rtu_master test_rtu_slave test_rtu_master : test_rtu_master.o modbus.o modbus-tcp.o modbus-rtu.o modbus-data.o gcc test_rtu_master.o modbus.o modbus-tcp.o modbus-rtu.o modbus-data.o -o test_rtu_master -lws2_32 test_rtu_slave : test_rtu_slave.o modbus.o modbus-tcp...
Free Modbus Slave Simulator in the form of a standalone Windows app supporting Modbus RTU, TCP, UDP and ASCIIoverRTU protocols. The simulator does allow setting values before the connection is established as well as running multiple instances of the app
Some tests are provided in tests directory, you can freely edit the source code to fit your needs (it's Free Software :). See tests/README for a description of each program. For a quick test of libmodbus, you can run the following programs in two shells: ./unit-test-server ./unit...
COM Port Tester is able to work in the terminal mode that is emulate transferring data from a monitored COM port to a device inserted into it. This option is especially convenient for Modbus communication test, as it allows observing the reaction of a particular device to a specific command ...
17、 program to test the chai: state ifolawAixi stH 电'6 - Quick stoo Ndwh .表4例如,要完成如下控制要求:M218的本体模块的10.0.0的上升沿启动 ATV303,以10.0.1的 下降沿使ATV303停机。根据上述交互状态表,以Somachine为操作平台用ST语言编写的例程为:五、通讯浏览器(I/O Scanner )通常比较常用的写...
;else{printf("write error: %s\n", modbus_strerror(errno));break;}Sleep(1000);}modbus_close(mb);modbus_free(mb);system("pause");return 0;} Modbus-RTU从机测试:test_rtu_slave.c,创建从机设备,地址为1,初始化了3个保持寄存器,地址分别为15/16/17,数据分别为0x1001/0x1002/0x1003。
root@211.69.193.189:~# gdb test GNU gdb 6.3 (MontaVista 6.3-20.0.22.0501131 2005-07-22) Copyright 2004 Free Software Foundation, Inc. GDB is free software, covered by the GNU General Public License, and you are welcome to change it and/or distribute copies of it under certain conditions. ...