TERRA 4D comes with a Modbus plugin which allows integration of different types of Modbus devices. Here we focus on Moxa devices.

• Switch outputs on/off
• Get events when an input is triggerd
• Show status of inputs and outputs

• Connect the Moxa device to Ethernet and open the browser
• Connect to address 192.168.127.254 which is normally the default IP address of the Moxa devices
• Main things to configure: Password, Security/Service Setting/Modbus!!!, Network/LAN, IO/Channel Mode (especially for DIOs)
• alternatively you can use IOxpress software

• Connect the Moxa device to Ethernet and install the Moxa IOxpress software (download from Moxa website)
• Start the Moxa IOxpress and select Device/Search to find your device
• Main things to configure: Password, Security/Service Setting/Modbus!!!, Network/LAN, IO/Channel Mode (especially for DIOs)
• on the Device Library page you find in the Deployment combobox the device actions, like up- and download of configuration files
• on the Configuration Library page you can change all settings and store it to a local file

• create a subsystem plugin device Modbus with default settings
• Input:
  • create a IO device of type Modbus and select SubType “Input”
  • IP port: 502, Server address: 0, Start address: 0, Input number: 0…N
• Output:
  • create a IO device of type Modbus and select SubType “Output”
  • IP port: 502, Server address: 0, Start address: 0, Output number: 0…N
• Input register (e.g. for PWM counter):
  • create a IO device of type Modbus and select SubType “Input register”
  • IP port: 502, Server address: 0, Start address: 17, Input number: 0…N
• Analog Input:
  • create a IO device of type Modbus and select SubType “Analog Input”
  • IP port: 502, Server address: 0, Start address: 520, Input number: 0…N
  • Configure low/high threshold depending on application to generate events when reading goes outside the expected range.

Login to the browser page of the Moxa device to see the status of inputs and outputs and also other information.