Troubleshooting the RS485 Communication
1. If No Communication is displayed on the SolarEdge Firefighter Gateway, perform
the following:
Verify that the RS485 cable is connected to all inverters. Check the connections
between the first inverter in the chain and the other inverters.
Verify that one of the devices is defined as the master and that slaves were
detected, as described above.
2. If
Partial Com.
is displayed on the firefighter gateway, one or more inverters are
disconnected from the bus. Perform the following:
Verify that the RS485 cable is connected to all inverters.
Check the Server Communication Status screen of all the inverters. The following
should appear:
S e r v e r : R S 4 8 5
S t a t u s : O K
3. If the message Master Not Found appears, check the connections to the master
device and fix if required.
4. If after slave detection the number of slaves displayed in the master under
RS485-X
Conf
è
Slave Detect
is smaller than the actual number of slaves, use one of the
following methods to identify missing slaves and troubleshoot connectivity
problems:
Use the
Long slave Detect
to retry connecting to slaves
Analyze the
Slave List
to check for missing slaves, and check their
connection
https://www.solaredge.com/sites/default/files/troubleshooting_
Creating an Ethernet (LAN) Connection
This communication option enables using an Ethernet connection to connect the to the
monitoring platform through a LAN.
Ethernet cable specifications:
Cable type – a shielded Ethernet cable (Cat5/5E STP) may be used
Maximum distance between the and the router – 100 m/ 330 ft.
Chapter 3: Connecting the Firefighter Gateway to the Installation
24
Firefighter Gateway Installation Guide MAN-01-00113-1.4