3-58 L30 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUALADD DEVICE TO SOFTWARE CHAPTER 3: INSTALLATION3The device has been configured for Ethernet communications. Proceed to the Connect to the L30 section to begincommunications.3.7.4 Configure modem connectionA modem connection allows a computer to communicate with a UR device over phone lines.A remote modem is connected to the UR device, either by connecting the serial cable to the front panel port or through aRS485 box to the rear terminals of the UR device. The computer is connected to a local modem that initiates theconnection.To add a UR device for modem connections:1. Connect the modems to the computer and UR.2. Start the EnerVista UR Setup software, or in EnerVista Launchpad select the UR device to start the software.3. Click the Device Setup button. The window opens.4. Click the Add Site button. A new category is added.5. Enter a site name in the Site Name field, such as London East. Optionally add a short Description of the site, such asthe address or intersection. Click the OK button. The new site appears in the Online Window area.6. Click the Device Setup button. The window opens.7. Select the new site.8. Click the Add Device button. A new device is added.9. Enter a name in the Device Name field, up to 15 characters, and optionally add a Description of the site. The Color isfor the text in the device list in the Online Window.10. Select “Modem” from the Interface drop-down list. This displays a number of interface parameters that must beentered.11. Select "Generic Modem" from the Modem Name drop-down list, then enter the Phone Number to dial to establishcommunication with the remote modem.Post Terminal Window — Enable this option if you have a SEL-203x Communications Processor, such as an SEL-2030or SEL-2032. It enables display of a terminal window to allow interaction with the other device.12. Once the phone number is entered, try to load automatically the device information by clicking the Read Order Codebutton.13. Click the OK button when the relay order code has been received. The new device is added to the Online window.The UR device has been added to the software.3.7.5 Automatic discovery of UR devicesThe EnerVista UR Setup software can automatically discover and communicate to all UR-family devices located on anEthernet network.Using the Discover button in the Device Setup window, a single click of the mouse triggers the software to detect any URslocated on the network. This is done by searching a range of IP addresses based on the subnet mask of the computer.When a UR device is detected, the EnerVista UR Setup software proceeds to configure all settings and order code optionsin the window. This feature allows the user to identify and interrogate all UR devices at a location.Examples of address ranges are as follows:• If the host has an IP address of 3.94.247.10 and its subnet mask is 255.255.252.0, then the host’s subnet is 3.94.244.0,and the possible IP addresses in this subnet are 3.94.244.1~254, 3.94.245.1~254, 3.94.246.1~254 and 3.94.247.1~254.The discover function scans all those possible IP addresses to detect UR relays.• If the host has an IP address of 3.94.247.145 and its subnet mask is 255.255.255.128, then the host’s subnet is3.94.247.128, and the discover function scans IP addresses of 3.94.247.128 to 3.94.248.254 for UR relaysTo automatically add UR devices:1. In the EnerVista software, click the Device Setup button. The window opens.
