Siemens 9810 Series User Manual page 93

9410 series - User manual
Prerequisite
Protocol
Modbus server devices
Configuring your meter as a Modbus client using ION Setup
You can configure your meter to Modbus client-server devices over serial or Ethernet.
Make sure your client and server devices have the prerequisite communications wiring and
configuration before configuring your meter as a Modbus client.
If the meter is a Modbus client over TCP/IP, the Modbus TCP/IP and Modbus RTU protocols must
be enabled.
NOTE: Devices supporting multiple simultaneous Modbus TCP connections can have
communications delays. Adjust your network timeout settings to accommodate this.
The meter as a Modbus client over TCP/IP attempts to communicate with a server device for up to
100 seconds (as per the RFC 1122 standard) before moving on to the next server device.
To configure your meter as a Modbus client over serial or Ethernet:
1. Start ION Setup.
2. Open the Setup Assistant for your meter.
3. Click Communications > 3rd Party Protocols > Modbus Master.
4. Click Add to add a Modbus server device.
The Modbus Device dialog appears.
5. Enter the Modbus server information:
6. Click Connections. The Modbus Master Connections dialog appears.
7. Select the tab that corresponds to the connection you are configuring.
For example, if you selected TCP Connection 1 from the Connected via drop-down list box,
select the TCP 1 tab.
7EN05-0336-09
Description
• Modbus client-server serial devices – The client's serial port
protocol must be set to Modbus Master.
• Modbus client-server Ethernet devices – The client must be
communicating to the server devices over Ethernet port 502.
NOTE: Having more than one Modbus client on a serial Modbus
network may cause communication conflicts.
The Modbus client device must have the server device information
entered.
Enter the Modbus server device's name and a label suffix (if applicable).
Select the device type of the server device from the Device Type drop-down list box.
Enter the unit ID of the Modbus server device into the Slave ID text box.
Select the serial or TCP connection from the Connected via drop-down list box. This is
the connection from the Modbus client to the server device.
Communications
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