Siemens 9410 Series User Manual page 81

Communications
Modbus Ethernet gateway
7EN05-0336-03
2. Set the serial port's protocol to EtherGate. Configure the other serial port
parameters as required.
Configuring an EtherGate gateway using ION Setup
You can configure EtherGate on your meter using ION Setup.
Before you begin, make sure you have completed the following tasks:
• Confirm the serial network of devices are wired and configured to have the same
baud rate, serial port settings (for example, 8N1), and protocol (ION).
• Confirm each serial device has a unique unit identifier.
• Confirm the serial network of devices are connected to the gateway meter's serial
communication port.
• Confirm your gateway meter is communicating over Ethernet.
• Confirm that the EtherGate Ethernet protocol is enabled on your gateway meter.
1. Start ION Setup.
2. Open the Setup Assistant for your meter.
3. Navigate to Communications > Serial settings and select the tab for the
communications port that the serial network is connected to.
4. Select Protocol and click Edit. The protocol selection screen appears.
5. Set the protocol to EtherGate.
6. Create an Ethernet gateway site to access the serial network of devices through
your gateway meter.
The meter's Ethernet gateway feature extends the meter's functionality by allowing
Ethernet access to serial devices connected to the meter's RS-485 serial
communications port.
A Modbus master device (such as an energy management system) can communicate
through the gateway meter to a serial network of devices connected to the gateway
meter's serial port(s). The meter receives Modbus TCP/IP data on TCP port 502,
translates it to Modbus RTU then forwards it to the addressed slave device.
This functionality allows the use of monitoring software to access information from
slave devices for data collection, trending, alarm/event management, analysis, and
other functions.
Modbus Ethernet gateway implementation
There are some specific aspects to your meter's Modbus Ethernet gateway
implementation.
A. Gateway meter
B. Ethernet (multiple Modbus master TCP
connections)
C. Downstream serial Modbus slave devices
D. Multiple Modbus master devices
9410 series
81