Serial Modbus device prerequisites
For your meter to operate as a serial Modbus device, you must complete some prerequisite configuration.
| Prerequisite | Description |
|---|---|
| Wiring |
The device’s serial connection must be wired correctly. The Modbus server devices must have communications wiring to the Modbus client. |
| Protocol |
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. |
| Baud rate | The baud rate must be the same for all devices on the serial Modbus network. |
| Stop bits and parity |
The communication stop bits and parity (for example, 8N1) must be the same for all devices on the serial Modbus network. |
| Unit ID |
Each device on the serial Modbus network must have a unique unit
ID (also called the device address). |