BRX Getting Started

Installing DmD

9/30/2025 DmD2.11.1

  • Download DoMore Designer here
  • Unzip the downloaded archive (do not run the installer from within the zip file)
  • Double click the setup executable in the unzipped archive
  • Follow the prompts

Connecting to the BRX PLC

9/30/2025 DmD2.11.1

This Section covers three ways to connect your BRX PLCs for programming:

Connect using USB

Requirements

BRX PLCs can easily be outfitted with USB ports using Pluggable Option Modules (POM). Insert the USB-B or USB-C POM into the BRX PLC. More on inserting POMs here.

Connecting
  1. With Do-more Designer open, click the New Online icon da78d4bbe79548f5d66e89554af49377.png or select File / New Project / Online 6d6fc18a508006856441493875f38f1c.png
  2. The following dialog will show the connected PLC as <new PLC>. c2b1596c361f65226a2376d505e05edf.png
    • If your PLC does not show
      • make sure the selection for Show New PLCs is set
      • click the Rescan for New PLCs button.
  3. Select your PLC and click Connect 4ba0d2d737d9c1706f32e0ec99ce75b7.png
  4. in the next dialog, name your PLC connection and click OK a69f861d603ec661a5c02ab05190cc27.png
  5. Your PLC is now connected

Connect using Ethernet

To connect to your BRX PLC through Ethernet you’ll either use the onboard Ethernet port (DM1E-models) or use Pluggable Option Module (POM) ECOMLT, please note that the ECOMEX POM is not compatible with DM1 models. For more information on getting started with an ECOMLT POM please refer to Pluggable Option Modules (POM) / ECOMLT.

At factory default the PLCs internal IP address is not initialized. In this state Do-more Designer will find the PLC regardless of the PCs IP-Address settings. Once the PLCs IP address is initialized the PCs IP address needs to be in the same subnet as the PLC to connect using Ethernet.

In case you need to connect to an already initialized PLC with unknown IP-Address settings please use NetEdit to retrieve or change the PLCs settings.

Connecting
  1. With Do-more Designer open, click the New Online icon da78d4bbe79548f5d66e89554af49377.png or select File / New Project / Online 6d6fc18a508006856441493875f38f1c.png
  2. The following dialog will show the connected PLC as <new PLC>. 788e435f6b1744ffed4cc63115d8fd39.png
    • If your PLC does not show,
      • make sure the selection for Show New PLCs is set
      • click the Rescan for New PLCs button.
  3. Select your PLC and click Connect 6f5edc325fc45da8377c77e1487523f9.png
  4. in the next dialog, name your PLC connection and click OK 726e260daea5707ba0a57999ab8e2331.png
  5. Your PLC is now connected

Beware that using the configuration dialog within DoMore Designer will change the IP immediately. If you’re connected through Ethernet you will loose the connection.

Connect using Serial Connection

Requirements

Each BRX PLC features a built in serial port. While this port can be used in multiple ways it comes preconfigured to be used as a programming port. If you can not connect to the serial port there’s a chance it has been configured for a specific application. To temporarily force the serial port into ‘programming mode’ please refer to the chapter Forcing serial port settings.

Default settings

By default the PLCs built in serial port is configured for programming the PLC. The default port settings are

  • RS-232
  • 115200 bps
  • No prefix
  • 8 Data bits
  • No parity
  • 1 Stop bit

Wiring

39b44722cf733b425d35c06411b9ec77.png Please note that typically the RX (receive) and TX (transmit) lines between PLC and PC serial port need to be crossed to pair receive on one end with transmit on the other.

Connecting
  1. With Do-more Designer open, click the New Online icon da78d4bbe79548f5d66e89554af49377.png or select File / New Project / Online 6d6fc18a508006856441493875f38f1c.png
  2. The following dialog will show the connected PLC as <new PLC>. bd5cb45819c56ee476112fa269b3bce6.png If your PLC does not show:
    • make sure the selection for Include Serial Ports when Scanning for New PLCs is set
    • click the Rescan for New PLCs button
  3. Select your PLC and click Connect 4ba0d2d737d9c1706f32e0ec99ce75b7.png
  4. in the next dialog, name your PLC connection and click OK 80846094aaedeebcab75ca108c12ebf9.png
  5. Your PLC should now be connected.
    • In case you experience any connection issues
      • reopen the New project online dialog as in step 1 and select the PLC
      • Select the PLC and click the Edit button 6468494695ea1d060a93d78275632a11.png
      • in the opened dialog click on Protocol
      • increase the timeout settings
      • click Accept 018c21ee37898706612c6a7a68f3d74a.png
      • Now, with the PLC still selected, click the connect button 17b70ded473e99928b128fa4c0c000bf.png

Forcing serial port settings

The BRX Do-more! CPU has a block of DIP switches, located on the top of the chassis, that are used to perform various debug and reset operations. The DIP switch settings are only read when the system is first powered up. The default position for all of the DIP switches is OFF. bf526b2eeec6ceefa6f4e4be1ecc8e46.png

Dip switch 4 is used to force the Serial port into RS-232 mode with default settings (Programming mode for recovery purposes).

  1. Power off the BRX PLC.
  2. Move DIP switch 4 to the ON position
  3. Power the BRX PLC

The serial port is now defaulted to programming mode until the PLC is power cycled with DIP-switch 4 in the OFF position

Updating Firmware

9/30/2025 DmD2.11.1

PLC

POM

Restoring Factory default

9/30/2025 DmD2.11.1

PLC

POM

Pluggable Option Modules (POM)

Inserting POM

To insert a POM into the BRX PLC first remove the Filler Module, then seat POM module into connector and press firmly unitl tabs are fully engaged. 9478da28c795089002cc7d5966bad5e3.png

Ethernet POMs

There are two different POMs available to add an Ethernet port to the BRX PLC:

  • The ECOMLT is compatible with any BRX PLC and adds programming capability.
  • The ECOMEX adds an additional ethernet port to BRX PLCs with an onboard Ethernet port and allows access to all the protocols available through the PLC on a separate subnet.

ECOMLT

ECOMEX