Cablaggio RS485 della serie Autarco MH | Sofar EMS Documentation

Questa pagina descrive la comunicazione con un inverter ibrido Autarco serie LH tramite Modbus-RTU (rs485).
Per default, l'inverter è impostato all'indirizzo 1. L'interfaccia RS485 è un connettore a 4 pin chiamato "COM" situato nella parte inferiore dell'inverter
dietro una piastra protettiva. La posizione esatta è indicata nel riquadro arancione nell'immagine sottostante:

Guardando più da vicino, la porta appare così:

Per connettere l'inverter Autarco al Sofar EMS, dovrebbe essere usato un connettore appropriato per questo connettore a 4 pin.
Sulla Sofar EMS, l'inverter può essere collegato alla porta RS485. Il cablaggio è il seguente:

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
Pin 3	RS485 A	RS485_POS	RS485 A	TX+
Pin 4	RS485 B	RS485_NEG	RS485 B	TX-
N/A	RS GND	GND	Not available	G

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.

Guardando più da vicino, la porta appare così:

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
Pin 3	RS485 A	RS485_POS	RS485 A	TX+
Pin 4	RS485 B	RS485_NEG	RS485 B	TX-
N/A	RS GND	GND	Not available	G

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.