Serial Modbus Device Prerequisites; Your Meter As A Modbus Client - Siemens 9810 Series User Manual

9410 series - User manual
NOTE: Devices supporting multiple simultaneous Modbus TCP connections can have
communications delays. Adjust your network timeout settings to accommodate this.

Serial Modbus device prerequisites

For your meter to operate as a serial Modbus device, you must complete some prerequisite
configuration.
Prerequisite
Wiring
Protocol
Baud rate
Stop bits and parity
Unit ID

Your meter as a Modbus client

Your meter as a Modbus client with Ethernet Modbus server devices
Your meter can function as a Modbus client with Ethernet Modbus server devices.
7EN05-0336-09
Description
The device's serial connection must be wired correctly.
The Modbus server devices must have communications wiring to
the Modbus client.
Servers – For your meter to be a serial Modbus server, the meter's
protocol must be set to Modbus RTU. Client and server devices
must use the same format.
Client – For your meter to be a serial Modbus client, the meter's
protocol must be set to Modbus Master.
The baud rate must be the same for all devices on the serial
Modbus network.
The communication stop bits and parity (for example, 8N1) must
be the same for all devices on the serial Modbus network.
Each device on the serial Modbus network must have a unique
unit ID (also called the device address).
Note: Modbus serial device range 1 to 247
Communications
91