Power-Sonic

Supported Devices

Device Type	Modbus TCP (Ethernet)	RS485	Curtailment
...	❌	✅	❌

TODO: Complete table

Wiring

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	Sofar EMS model OM1	Sofar EMS 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

TODO: Complete the pins of the cable in the table.

Configuration

NOTE: RS485 Device Addresses

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

1. Set the working mode to Self Consume

2. Set Zero Export to Disable

3. Set Remote Control to Enable

4. Set the RS485 address. The default baudrate is 9600, if not, set it to 9600.

5. Set the charge current. Set the charge current.

IMPORTANT!

For a 5KT set it to 100 For 10KT set it to 160

6. Set AC Couple to Enable