PM 5000 Series | Sofar EMS Documentation

Wiring

Ethernet

Applicable only to PM5320, PM5340, and PM5341. For correct ethernet wiring: Follow the guidelines for ethernet wiring.

RS485

The RS485 terminals are located on the bottom of the device (connector 6 in the diagram below).

RS485 Wiring

For correct RS485 wiring: follow the RS485 wiring guidelines.
If the wiring shown in the table below is incorrect, please let us know.
There is no general industry consensus on the use of A and B for RS485 polarity, so the naming may be counterintuitive for some devices.

Device	Sofar EMS model OM1	Sofar EMS model IG8	RS485-USB converter	RS485-Ethernet converter
Terminal 22 / D1 (+)	RS485 A	RS485_POS	RS485 A	TX+
Terminal 23 / D0 (-)	RS485 B	RS485_NEG	RS485 B	TX-
Terminal 25 / 0V	RS GND	GND	Not available	G

Note

Shielding: The shield wire should be connected to Terminal 24 (SHLD). Note that the ground terminal is not available on the meter itself; the shield should be connected to ground at the other end of the bus[cite: 246, 1627].

Configuration

Ethernet

Applicable only to PM5320, PM5340, and PM5341. To configure the IP address:

Navigate to Maint > Setup > Comm > Enet.
Configure the IP Address, Subnet Mask, and Gateway.
Ensure the Modbus TCP protocol is enabled (usually Port 502).

RS485

NOTE: RS485 Device Addresses

You MUST give each device a unique address on the RS485 bus. Check the device manual for instructions.
Use lower addresses first (1, 2, ...) because the Sofar EMS will find them faster!
For each device, it is generally recommended to keep the factory-default baud rate, parity, and stop bits. The Sofar EMS will scan those first.

To configure the Serial settings (Baud rate, Parity, ID):

Navigate to Maint > Setup > Comm > Ser.
Edit the Address (Unit ID), Baud rate, and Parity to match your gateway settings.

Last updated August 24, 2026

Supported Devices

The PM 5000 series covers a wide range of meters. Capabilities vary by specific model number (e.g., PM51xx are generally RS485 only, while PM5320/PM5340 include Ethernet).

Device Type	Modbus TCP (Ethernet)	RS485
Schneider-Electric PM 5100 / 5110 / 5111	❌	✅
Schneider-Electric PM 5310 / 5330 / 5331	❌
Schneider-Electric PM 5320 / 5340 / 5341	✅

pm5300

RS485 Wiring

For correct RS485 wiring: follow the RS485 wiring guidelines.
If the wiring shown in the table below is incorrect, please let us know.
There is no general industry consensus on the use of A and B for RS485 polarity, so the naming may be counterintuitive for some devices.

Device	Sofar EMS model OM1	Sofar EMS model IG8	RS485-USB converter	RS485-Ethernet converter
Terminal 22 / D1 (+)	RS485 A	RS485_POS	RS485 A	TX+
Terminal 23 / D0 (-)	RS485 B	RS485_NEG	RS485 B	TX-
Terminal 25 / 0V	RS GND	GND	Not available	G

Note

Configuration

Ethernet

Applicable only to PM5320, PM5340, and PM5341. To configure the IP address:

Navigate to Maint > Setup > Comm > Enet.
Configure the IP Address, Subnet Mask, and Gateway.
Ensure the Modbus TCP protocol is enabled (usually Port 502).

RS485

NOTE: RS485 Device Addresses

You MUST give each device a unique address on the RS485 bus. Check the device manual for instructions.
Use lower addresses first (1, 2, ...) because the Sofar EMS will find them faster!
For each device, it is generally recommended to keep the factory-default baud rate, parity, and stop bits. The Sofar EMS will scan those first.

To configure the Serial settings (Baud rate, Parity, ID):

Navigate to Maint > Setup > Comm > Ser.
Edit the Address (Unit ID), Baud rate, and Parity to match your gateway settings.

Last updated August 24, 2026

Supported Devices

Wiring

Ethernet

RS485

RS485 Wiring

Note

Configuration

Ethernet

RS485

NOTE: RS485 Device Addresses

On this page

Supported Devices

Wiring

Ethernet

RS485

RS485 Wiring

Note

Configuration

Ethernet

RS485

NOTE: RS485 Device Addresses

On this page