FAQ
TL;DR: Sofar dataloggers can push data to 3 servers [Elektroda, macgaw, post #18378249]; “There must be a meter that will have a compatible modbus protocol,” advises Wlodek22 [Elektroda, 18343474]. Pair a Modbus-enabled meter (e.g., Solarman DTSD422) with the inverter to view both production and consumption in one app.
Why it matters: Choosing the right meter avoids blind-spots in self-consumption analysis and subsidy reporting.
Quick Facts
• Sofar WiFi datalogger firmware LSW3_14_FFFF_1.0.18 shows only Server A+B; later builds expose A+B+C [Elektroda, Wbm, post #18620384]
• Solarman DTSD422-D3 meter is three-phase, 100 A direct, Modbus-RTU/TCP compatible [*Solarman DTSD422 datasheet*].
• Zamel Supla MEW-01 logs active/reactive energy every 10 minutes and exports XLS [Elektroda, 3301, post #18382106]
• Typical smart-meter price: PLN 600–800 for Solarman DTSD422 in Poland (*Solarman e-shop*, 2023).
Can I plug a Fronius Smart Meter or SolarEdge meter into a Sofar inverter?
Only if the meter speaks the same Modbus registers the Sofar queries. Fronius and SolarEdge models use proprietary maps, so they will not work out-of-the-box [Elektroda, Wlodek22, post #18343474]
Which meters are officially supported by Sofar?
Sofar lists the Solarman DTSD422 series as dedicated; it appears in their shop as “Sofar-compatible energy meter” [Elektroda, matai123, post #20169111]
Does a Sofar inverter measure household consumption on its own?
No. The built-in logger records only PV production, not grid import/export [Elektroda, Darek J, #18352355; cuuube, #18352358].
How do I monitor consumption and production together?
Install a Modbus meter (e.g., Solarman DTSD422) at the supply point and wire RS-485 to the inverter. The inverter then uploads combined data to Solarman Cloud or another server you configure.
How can I add extra remote servers (PVmonitor, Home Assistant, etc.)?
- Connect to the inverter’s AP (SSID AP_xxx).
- Browse to 10.10.100.254 and log in (admin/admin).
- In Advanced > Remote Server set URLs for Server B and C, then save [Elektroda, slaslo, post #18379770]
Why won’t Sofar push directly to PVmonitor even after adding Server B?
PVmonitor expects a specific JSON payload; Sofar firmware sends Solarman-format packets, so the server rejects them. PVmonitor recommends a LAN-Kontroler bridge instead [Elektroda, lesiu681, post #18367596]
Can I use an S0 pulse counter with Sofar?
Yes, but only for external logging. Route the S0 pulses to a LAN-Kontroler or PLC; Sofar’s logger cannot ingest pulse inputs [Elektroda, cuuube, post #18342791]
Which firmware version supports all three remote servers?
Versions newer than LSW3_14_FFFF_1.0.18 add Server C. Earlier builds show only A+B [Elektroda, Wbm, post #18620384]
What is the Solarman DTSD422-D3 meter and how do I wire it?
It is a three-phase, 100 A direct-connected meter with RS-485 and optional Ethernet. Wire L1-L3-N through the meter, connect RS-485 A/B to the inverter’s Modbus terminal, and set baud rate 9600 bps. It reports voltage, current, power, and bidirectional energy [Solarman DTSD422 datasheet].
Is Zamel Supla MEW-01 a cheaper alternative?
Yes. It measures import/export per phase, logs every 10 minutes, and exports XLS. It lacks direct Sofar integration, so you need multiple apps [Elektroda, 3301, #18382106; Darek J, #18382315].
What happens if the inverter’s AP network disappears?
Press the datalogger’s RESET for 5 seconds to restore factory WiFi settings, then reconnect to SSID AP_xxx [Elektroda, slaslo, post #18379791]
Why did installers add extra meters for subsidy programs?
Grant rules often require separate certified meters for PV production and household consumption. These units feed data to pvmonitor or the funding portal for auditing [Elektroda, slawo12311, post #18982970]
mew 01.jpg Download (8.13 kB)
