Connecting an ETport / WattsOn-Mark II to WiFi

Overview

Some WattsOn-Mark II meters include built-in Ethernet and Wi-Fi, while others require an external ETport communication module.

Regardless of which device provides the network interface, the discovery and configuration procedure is the same.

Important:
Wi-Fi will not connect while an Ethernet cable is plugged in. Ethernet must be unplugged before Wi-Fi becomes active.  

Ethernet is used temporarily for configuration.

1. Hardware Installation

A. WattsOn-Mark II (E4 Models)

If your meter includes the E4 communication option:

1. Install the WattsOn-Mark II according to the installation manual.
2. Apply power to the meter.
3. Connect an Ethernet cable to the meter.

B. WattsOn-Mark II with ETport (Non-E4 Models)

If your meter does not include E4, install an ETport.

1. Mount the ETport beside the WattsOn-Mark II on the DIN rail.
2. Connect the JumpBUS connector between the ETport and the meter.
3. Apply 9–32 VDC power to either device, power is shared through JumpBUS.
4. Connect an Ethernet cable to the ETport.

The ETport provides Ethernet or Wi-Fi connectivity for the meter.

2. Discover the Device

1. Install and run Elkor's Modbus Commander and click Devices > Elkor Network Device Finder on a computer connected to the same network.
2. Click Find to scan for devices.
3. Locate the device in the list.

4. Note the IP address assigned by DHCP.

3. Access the Web Interface

1. Right click and click "Open Browser" to automatically navigate to the device's web page
       or
   1. Open a web browser manually.
   2. Enter the device IP address.
2. Log in using the default credentials:

Username: admin
Password: admin

4. Configure Wi-Fi

Under "Gatewaty" (left side), click "Network" to open the Network Configuration page.  Under "Wifi Configuration", enter the SSID and password.

Click Submit to store the configuration.  The device will reboot automatically.

Note:
The ETport and WattsOn-Mark II automatically determine the security type used by the network.

5. Activate Wi-Fi

1. Disconnect the Ethernet cable.
2. Wait approximately 10 to 20 seconds.

The device will now attempt to connect to the configured Wi-Fi network.

6. Confirm Wi-Fi Connection

Check the status LED.

7. Rediscover the Device

Run Elkor Network Device Finder again to locate the device on the Wi-Fi network and determine its new IP address.

Once connected, the meter can be accessed using:

• Web Interface
• Modbus TCP
• BACnet/IP, if enabled

Troubleshooting

Wi-Fi does not connect

• Ensure the Ethernet cable is unplugged
• Verify the SSID and password
• Confirm the network supports 2.4 GHz Wi-Fi

Device cannot be found

• Run Device Finder again
• Check your DHCP server for the assigned IP address

Factory reset

Hold the RESET button for approximately 10 seconds to restore default settings.