支持的设备

Device Type	Modbus TCP (Ethernet)	RS485
UPM209	✅	✅

接线

以太网

正确的以太网接线：遵循以太网接线指南。

RS485

RS485 Wiring

• For correct RS485 wiring: Follow the guidelines for RS485 wiring.
• If the wiring shown in the table below is incorrect, please let us know.
• There is no general consensus in the industry about the usage of A and B for the RS485 polarity, so it may be counterintuitive and opposite of what you might expect for some devices.

Device	SmartgridOne Controller model OM1	SmartgridOne Controller model IG8	RS485-USB converter	RS485-Ethernet converter
	RS485 A	RS485_POS	RS485 A	TX+
	RS485 B	RS485_NEG	RS485 B	TX-
	RS GND	GND	Not available	G

配置

RS485

在计量仪上设置 Modbus 地址。（波特率和校验位也可以设置，但我们建议保留默认设置。）

以太网

如果通过以太网连接，您可能需要调整能源计量仪的 IP 地址设置。