dds-modbus

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Development dependencies

sudo apt-get update
sudo apt-get install git build-essential libssl-dev libwrap0-dev libc-ares-dev uuid-dev automake libtool cmake

Install libmosquitto (MQTT Library)

wget http://mosquitto.org/files/source/mosquitto-1.4.8.tar.gz
tar zxvf mosquitto-1.4.8.tar.gz
cd mosquitto-1.4.8
make all
sudo make install
sudo ldconfig

Install libmodbus (Modbus Library)

git clone https://github.com/stephane/libmodbus.git
cd libmodbus
./autogen.sh
./configure
make
sudo make install
sudo ldconfig

Install DDS Library

Download Vortex Lite, then install it.

Install MQTT broker (Optional)

# node.js mqtt broker
npm install mosca bunyan -g

Build

git clone https://github.com/taka-wang/dds-modbus.git
cd dds-mosbus
mkdir build
cd build
cmake ..
make # master and bridge in build folder

Run

# option: use your own mqtt broker
mosca -v --http-port 3000 --http-bundle --http-static ./ | bunyan # mqtt broker

# modbus <--> dds
./master

# dds <--> mqtt
./bridge

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Run Modbus Simulator

See README

MQTT Test

# subscribe rotary value
mosquitto_sub -h 192.168.0.107 -d -t "/sensors/rotary/3"

# turn on led red
mosquitto_pub -h 192.168.0.107 -d -t /sensors/led/16 -m "1"

# turn off led red
mosquitto_pub -h 192.168.0.107 -d -t /sensors/led/16 -m "1"

# turn on led green
mosquitto_pub -h 192.168.0.107 -d -t /sensors/led/17 -m "0"

# turn off led red
mosquitto_pub -h 192.168.0.107 -d -t /sensors/led/17 -m "0"

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Note

You may test the programs with Naive Dashboard or Node-Red with MQTT Flow.