Power Xpert Insight GatewayQuick Start Guide16You can connect up to 128 devices to the PXG900. The portshave the following device limits:• INCOM port – 64 devices• COM1 port – 32 devices, supports Modbus RTU devices• COM2 port – 32 devices, supports Modbus RTU devicesFor more information on wiring an INCOM network, see theEaton Electrical Field Devices Communication Wiring Specification(TD 17513) available at www.eaton.com/pxg.To attach a network of INCOM devices to the PXG900PXG-900PXG900ing resistor isn’t required at the Gateway.1. Attach one of the three-pin Phoenix connectors shippedwith the PXG900 to the INCOM twisted pair cable.2. Insert the connector into the INCOM port on the PXG900.To attach a Modbus RTU network to the PXG900:Note: If needed, add an external 100-ohm resistor.1. Attach one of the three-pin Phoenix connectors shippedwith the PXG900 to the Modbus twisted pair cable.2. Connect the Modbus cable to the COM1 or COM2 port ofthe PXG900.Adding DevicesAfter you’ve properly configured the serial ports and connectedthe gateway to your serial networks, you can begin adding anydevices currently on that serial network. Adding devices, like portconfiguration, is done on the Network tab.The PXG900 helps you when adding devices, guiding you throughthe initial setup steps:To add either a Modbus or INCOM device:1. Choose Edit.2. Choose Add Device under the appropriate port.3. In the sidebar, select the device type under Family.4. Select the Model Series.5. Select the device Model.6. Enter a meaningful name for the device.7. Enter the device address: 1-247 decimal for Modbus, 1-FFFhexadecimal for INCOM.8. Choose Save Device Configuration.