Technical Specifications

FAQ

1. What is the main function of the EGX100 Ethernet Gateway?

The EGX100 is an industrial communication gateway designed to connect Modbus serial devices to an Ethernet network. Its primary function is to provide a communication path between field devices using serial Modbus communication and higher-level systems operating on an Ethernet network. This allows equipment such as power meters, protection devices, PLCs and other Modbus-compatible devices to be accessed from SCADA systems, energy management platforms and industrial monitoring networks. In an existing automation installation, the gateway can provide a practical communication interface when legacy serial devices need to be integrated into an Ethernet-based control or monitoring architecture.

2. Which communication protocols are supported by the EGX100?

The EGX100 is designed for communication between Modbus RTU serial devices and Ethernet-based systems, supporting the communication requirements commonly used in industrial automation and power monitoring applications. In a typical installation, field devices communicate with the gateway through an RS-485 serial network, while an upper-level PLC, SCADA system or monitoring application communicates with the gateway through Ethernet. Correct communication depends on proper configuration on both sides. Serial parameters such as device address, baud rate, parity and data format must match the connected Modbus devices, while the Ethernet-side configuration must be compatible with the industrial network and the software accessing the gateway.

3. How should Modbus RTU devices be connected to the EGX100?

Modbus RTU devices can be connected to the EGX100 through the RS-485 communication interface, forming a serial industrial communication network. During installation, the RS-485 wiring should be completed according to the communication topology and the requirements of the connected devices. Each Modbus device should have a unique slave address, and the serial communication parameters should be configured consistently across the network. These parameters can include baud rate, parity, data bits and stop bits. For larger or longer RS-485 networks, cable quality, termination and electromagnetic interference should also be considered. After wiring is completed, the gateway and field devices should be tested individually to confirm that the communication network is functioning correctly.

4. What should be checked when connecting the EGX100 to a PLC or SCADA system?

When connecting the EGX100 to a PLC or SCADA system, both the Ethernet side and the Modbus fieldbus side should be checked. On the Ethernet side, verify that the gateway has the correct network configuration and that its IP address does not conflict with another device. The PLC or SCADA software must also be configured to communicate with the gateway using the appropriate communication method. On the fieldbus side, verify the Modbus device addresses and serial communication parameters. If the Ethernet connection is working but field data cannot be accessed, the problem may be related to the RS-485 network, device addressing, communication parameters or register configuration. Testing each communication layer separately is an effective way to identify the source of the problem.

5. How should communication problems between the EGX100 and Modbus devices be troubleshot?

Troubleshooting should begin with the physical RS-485 connection. Check the communication cable, terminal connections and interface wiring for loose connections, damaged conductors or incorrect polarity. Next, verify that every Modbus device has a unique address and that the baud rate, parity, data bits and stop bits match the gateway configuration. If the basic settings are correct, inspect the RS-485 network for excessive cable length, improper termination or electromagnetic interference. If only one device fails to communicate, test that device separately to determine whether the problem follows the device. If all connected devices fail at the same time, the gateway configuration, serial interface and common communication wiring should be investigated first. Reviewing communication diagnostics can also help determine whether the gateway is receiving responses from the field devices.

6. Can the EGX100 be used to remotely access data from power meters?

Yes. The EGX100 can be used to integrate compatible Modbus power meters into an Ethernet-based monitoring system. Once the power meter is connected through the Modbus serial network and the gateway is correctly configured, an upper-level SCADA, energy management or automation system can access the data provided by the meter through the Ethernet network. Depending on the connected device, available information may include voltage, current, power, energy consumption and other electrical measurements. The exact data available depends on the meter’s Modbus register map. Correct register addressing and data-type configuration are therefore important. A communication connection may appear normal while incorrect register mapping still results in missing or incorrect measurements.

7. What should be checked if the EGX100 network connection works but device data cannot be read?

If the EGX100 can be reached through the Ethernet network but the upper-level system cannot read field-device data, the communication path between Ethernet and the Modbus serial network should be checked systematically. First, verify that the gateway can communicate with the connected Modbus devices. Then check the slave address, register address, function code and data format configured in the PLC or SCADA system. If only specific data points cannot be read, the problem may be related to incorrect register mapping or data interpretation rather than a network failure. If no field devices can be accessed, inspect the serial communication parameters and RS-485 wiring. Testing the network connection, device response and individual Modbus registers separately can help determine exactly where the communication problem occurs.

8. What maintenance is recommended for the EGX100 in an industrial automation system?

Routine maintenance should focus on the gateway’s power supply, Ethernet connection, RS-485 communication network and overall communication status. Check that the power supply remains stable and that Ethernet and serial communication connectors are securely installed. For systems operating continuously, monitor communication interruptions, device offline conditions and abnormal data values because these can indicate developing wiring or network problems. The RS-485 network should also be checked periodically for loose terminals, damaged cables and excessive electrical interference. On the Ethernet side, network configuration should be maintained carefully to prevent IP address conflicts after equipment is added or network changes are made. For critical automation installations, it is recommended to keep a backup of the EGX100 network configuration, serial communication parameters and PLC or SCADA communication settings so that the system can be restored efficiently after maintenance or equipment replacement.