Supported Devices

Device Type	Modbus TCP (Ethernet)	RS485	Curtailment
MIC 600TL-X	❌		✅
MIC 750TL-X		✅
MIC 1000TL-X
MIC 1500TL-X
MIC 2000TL-X
MIC 2500TL-X
MIC 3000TL-X
MIC 3300TL-X

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	SmartgridOne Controller model OM1	SmartgridOne Controller model IG8	RS485-USB converter	RS485-Ethernet converter
RS485 A1	RS485 A	RS485_POS	RS485 A	TX+
RS485 B1	RS485 B	RS485_NEG	RS485 B	TX-
N/A	RS GND	GND	Not available	G

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 SmartgridOne Controller will find them faster!
• For each device, it is generally recommended to stick with the factory default baud rate, parity, and stop bits. The SmartgridOne Controller will scan on those first.

By default, the inverter is set to address 1. This can be changed via the settings menu of the inverter. This is only necessary if several devices are connected to the RS485 communication bus.

You can change the address of the inverter via the touch control. It works as follows:

Touch control	Impact
Touch once	Change display or number + 1
Touch twice	Enter or confirm
Touching three times	Previous menu
Keep touched for 5 seconds	Confirm country setting or number. Restore default value.

Change the address by going to the "Set Comaddr" menu as shown in the image to the left or above. Set the address to a unique value. See Chapter 7 of the inverter manual for more information.