Communication & Monitoring; Rs485 Communication - SOLIS S5 Series User Manual

4. Comm. & Monitoring
There are 5 communication terminals on Solis inverter. COM1 is a 4-pin connector
reserved for Solis WiFi/Cellular datalogger. COM2 and COM3 are RS485 connection
between inverters and both RJ45 and Terminal block are provided for use .
COM4 and COM5 are the Ethernet connection via RJ45.
Monitoring system for multiple inverters
Multiple inverters can be monitored through RS-485 and Ethernet daisy chain configuration.
PV Strings
PV Strings
PV Strings

4.1 RS485 communication

RS-485 communication supports two connections methods: RJ45 connectors/ Terminal board
1. RS-485 communication through RJ45 connector
RJ45 port connection (See figure 4.2).
CAT 5E outdoor rated (cable outer diameter<9mm, internal resistance≤1.5Ω/10m) and
shielded RJ45 connectors are recommended.
Ethernet IN
Ethernet OUT
Inverter
Inverter
Inverter
Figure 4.1 Multiple inverter monitoring system
Figure 4.2 RJ45 port
Datalogger
DC
RS485/Ethernet
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User Manual
PC monitoring
Internet
485-IN
485-OUT