mbpoll Test FreeModbus TCP Demo

/*********************************************************************************
 *                   mbpoll Test FreeModbus TCP Demo
 * 说明：
 *     使用mbpoll工具对FreeModbus进行测试，本文仅仅涉及编译以及简单测试。FreeModbus
 * 默认没有打开网络传输功能，需要手动打开。
 *
 *                                              2018-1-2 深圳 南山平山村 曾剑锋
 ********************************************************************************/

一、参考文档：
    epsilonrt/mbpoll
        https://github.com/epsilonrt/mbpoll

二、Compile/Install：
    root@localhost:/home/zengjf/freemodbus# git clone https://github.com/epsilonrt/mbpoll.git
    Cloning into 'mbpoll'...
    remote: Counting objects: 263, done.
    remote: Total 263 (delta 0), reused 0 (delta 0), pack-reused 263
    Receiving objects: 100% (263/263), 6.23 MiB | 0 bytes/s, done.
    Resolving deltas: 100% (135/135), done.
    Checking connectivity... done.
    root@localhost:/home/zengjf/freemodbus# cd mbpoll
    root@localhost:/home/zengjf/freemodbus/mbpoll# ls
    3rdparty  CMakeLists.txt  LICENCE  NEWS       README_FR.md  mbpoll.pro      mbpo
    AUTHORS   INSTALL         LICENSE  README.md  TODO          mbpoll.project  pack
    root@localhost:/home/zengjf/freemodbus/mbpoll# mkdir build
    root@localhost:/home/zengjf/freemodbus/mbpoll# cd build/
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# cmake ..
    -- The C compiler identification is GNU 4.9.3
    -- The CXX compiler identification is GNU 5.4.0
    -- Check for working C compiler: /usr/bin/cc
    -- Check for working C compiler: /usr/bin/cc -- works
    -- Detecting C compiler ABI info
    -- Detecting C compiler ABI info - done
    -- Detecting C compile features
    -- Detecting C compile features - done
    -- Check for working CXX compiler: /usr/bin/c++
    -- Check for working CXX compiler: /usr/bin/c++ -- works
    -- Detecting CXX compiler ABI info
    -- Detecting CXX compiler ABI info - done
    -- Detecting CXX compile features
    -- Detecting CXX compile features - done
    -- Configuring done
    -- Generating done
    -- Build files have been written to: /home/zengjf/freemodbus/mbpoll/build
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# ls
    CMakeCache.txt  CPackConfig.cmake        Makefile
    CMakeFiles      CPackSourceConfig.cmake  cmake_install.cmake
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# make
    Scanning dependencies of target mbpoll
    [ 12%] Building C object CMakeFiles/mbpoll.dir/src/mbpoll.c.o
    [ 25%] Building C object CMakeFiles/mbpoll.dir/3rdparty/modbus/modbus.c.o
    [ 37%] Building C object CMakeFiles/mbpoll.dir/3rdparty/modbus/modbus-data.c.o
    [ 50%] Building C object CMakeFiles/mbpoll.dir/3rdparty/modbus/modbus-tcp.c.o
    [ 62%] Building C object CMakeFiles/mbpoll.dir/3rdparty/modbus/modbus-rtu.c.o
    [ 75%] Building C object CMakeFiles/mbpoll.dir/3rdparty/sysio/delay.c.o
    [ 87%] Building C object CMakeFiles/mbpoll.dir/3rdparty/sysio/serial.c.o
    [100%] Linking C executable mbpoll
    [100%] Built target mbpoll
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# make install
    [100%] Built target mbpoll
    Install the project...
    -- Install configuration: ""
    -- Installing: /usr/local/bin/mbpoll
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# mbpoll -h
    usage : mbpoll [ options ] device|host [ writevalues... ] [ options ]
    
    ModBus Master Simulator. It allows to read and write in ModBus slave registers
                             connected by serial (RTU only) or TCP.
    
    Arguments :
      device        Serial port when using ModBus RTU protocol
                      COM1, COM2 ...              on Windows
                      /dev/ttyS0, /dev/ttyS1 ...  on Linux
                      /dev/ser1, /dev/ser2 ...    on QNX
      host          Host name or dotted IP address when using ModBus/TCP protocol
      writevalues   List of values to be written.
                    If none specified (default) mbpoll reads data.
                    If negative numbers are provided, it will precede the list of
                    data to be written by two dashes ('--'). for example :
                    mbpoll -t4:int /dev/ttyUSB0 -- 123 -1568 8974 -12
    General options :
      -m #          mode (rtu or tcp, TCP is default)
      -a #          Slave address (1-255 for rtu, 0-255 for tcp, 1 is default)
                    for reading, it is possible to give an address list
                    separated by commas or colons, for example :
                    -a 32,33,34,36:40 read [32,33,34,36,37,38,39,40]
      -r #          Start reference (1 is default)
      -c #          Number of values to read (1-125, 1 is default)
      -u            Read the description of the type, the current status, and other
                    information specific to a remote device (RTU only)
      -t 0          Discrete output (coil) data type (binary 0 or 1)
      -t 1          Discrete input data type (binary 0 or 1)
      -t 3          16-bit input register data type
      -t 3:hex      16-bit input register data type with hex display
      -t 3:int      32-bit integer data type in input register table
      -t 3:float    32-bit float data type in input register table
      -t 4          16-bit output (holding) register data type (default)
      -t 4:hex      16-bit output (holding) register data type with hex display
      -t 4:int      32-bit integer data type in output (holding) register table
      -t 4:float    32-bit float data type in output (holding) register table
      -0            First reference is 0 (PDU addressing) instead 1
      -B            Big endian word order for 32-bit integer and float
      -1            Poll only once only, otherwise every poll rate interval
      -l #          Poll rate in ms, ( > 100, 1000 is default)
      -o #          Time-out in seconds (0.01 - 10.00, 1.00 s is default)
    Options for ModBus / TCP :
      -p #          TCP port number (502 is default)
    Options for ModBus RTU :
      -b #          Baudrate (1200-921600, 19200 is default)
      -d #          Databits (7 or 8, 8 for RTU)
      -s #          Stopbits (1 or 2, 1 is default)
      -P #          Parity (none, even, odd, even is default)
      -4            RS-485 mode (/RTS on after sending)
      -5            RS-485 mode (/RTS on when sending)
    
      -h            Print this help summary page
      -V            Print version and exit
      -v            Verbose mode.  Causes mbpoll to print debugging messages about
                    its progress.  This is helpful in debugging connection...
    root@localhost:/home/zengjf/freemodbus/mbpoll/build#

三、Test Example：
    root@localhost:/home/zengjf/freemodbus/mbpoll/build# ./mbpoll -m TCP -t 3 -r 1000 -c 1 localhost
    mbpoll 0.1-23 - FieldTalk(tm) Modbus(R) Master Simulator
    Copyright (c) 2015 epsilonRT, All rights reserved.
    This software is governed by the CeCILL license //www.cecill.info>
    
    Protocol configuration: Modbus TCP
    Slave configuration...: address = [1]
                            start reference = 1000, count = 1
    Communication.........: localhost, port 502, t/o 1.00 s, poll rate 1000 ms
    Data type.............: 16-bit register, input register table
    
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    -- Polling slave 1... Ctrl-C to stop)
    [1000]:         0
    ^C--- localhost poll statistics ---
    12 frames transmitted, 12 received, 0 errors, 0.0% frame loss
    
    everything was closed.
    Have a nice day !
    root@localhost:/home/zengjf/freemodbus/mbpoll/build#