1.1. Rheonics SRV, SRD, DVP or DVM w/ Firmware V03.20/0 or higher

1.2. Allen Bradley Micro820 2080-LC20-20QBB

1.3. Rockwell Automation CCW Version 12.00.00 (includes RSLinx Classic Lite 4.11.00 CPR 9

SR 11.0)

1.4. Windows 10 64 bit

1.6. Ethernet Switch

2. Rheonics Control Panel Setup

2.1. Connect Rheonics sensor, PLC, and PC (with RHEONICS CONTROL PANEL software installed) with an Ethernet Cable (https://support.rheonics.com/support/solutions/articles/81000300292-introducing-ethernet- connections-on-smet). We recommend using an Ethernet Switch.

2.2. For Static IP address go to the “Comm Configure tab” in the RHEONICS CONTROL PANEL; in the Ethernet section click the dropdown menu in DHCP and select false (This will disable DHCP function)


Figure 1. Disable for DHCP, this will allow Static IP Address

            2.3. Fill in all the parameters for the Ethernet settings, remember to use valid network parameters.

Figure 2. Click in “Update SMET”

3. PLC Setup

This section explains how to navigate in the CCW software to configure the correct network settings. Rheonics provides a premade. CCWARC as a basic program for the Modbus TCP/IP integration. (If CCW software version 12.00.00 is not installed please follow this link https://www.rockwellautomation.com/en-au/capabilities/industrial-automation-control/design-and-configuration-software.html for download)

3.1. RS Linx Classic

  1. Once the software has been installed open the RSLinx Classic software.

Figure 3. Opening Rslinx Classic

    2. Scan all systems in the network. To do this, click on “Rswho” button.

Figure 4. Scan all network devices by pushing the” Rs Who” Button

    3. Check for the following screen to be displayed:

Figure 5. Devices found with the RSwho function

    4. Under the “AB_ETHIP-1, Ethernet” menu, the PLC and an unrecognized device with a yellow question mark will be found.  

Figure 6. Unrecognized device for SRV electronic sensor

4. Connected Component Workbench

  1. Open the Connected Component Workbench (CCW) Application


Figure 7. Connected Components Workbench start


    2. Once in the CCW environment go to the “file” tab and select Import project. Rheonics provides with 1 example ready to work with Modbus TCP/IP as client. The SMET is working as Server.


Figure 8. Import Project in CCW

    3. Choose the file named “RheonicsSRV_micro820_ModbusTCPIP.ccwarc” All the project configurations will be displayed on the screen. 


    4. The Ethernet settings can be verified by selecting the Ethernet option. The configuration of the IP address can be changed if needed. 

Figure 9. Main page for CCWARC project.


Figure 10. Checking Ethernet settings.

    5. Configure the IP Address of the Rheonics SRV sensor in the network, go to the “Modbus_TCP” by double-clicking. The Ladder program will be displayed. Next, follow these steps:

Figure 11. Ladder program for Modbus TCP/IP configuration

    6. Right-click in any of the parameters and Variable selector to modify the parameter of Modbus TCP/IP.                

Figure 12. Variable Selector

    7. Global variable settings in MICRO820 for MODBUS TCP/IP settings

Figure 13. Modbus parameters for edition


    8. Open Local_CFG and set the parameters as need it. Below find the settings for the input registers but any of the Registers are available (https://support.rheonics.com/support/solutions/articles/81000397127-using-rheonics-file-for-settings-in-modbus)

Figure 14. LOCAL_CFG parameters

    9. In the “TARGET_Cfg” variable we should the IP address of our SMET.

Figure 15. TARGET_CFG parameters

    10. Build the program and download it in the PLC.

Figure 16. Build Program process

    11. Select the option Download with Values.

Figure 17. Download the configuration into PLC

    12. Once the download has finished, go to online mode to check the following parameters.

Figure 18. Going into online mode

    13. Checking basic parameters are received

Figure 19. Comparison between Reading of the SMET and Micro820