Solarlog | SmartgridOne Documentation

Supported Devices

Device Type	Modbus TCP (Ethernet)	RS485
Solar-Log 400e Gateway	✅	❌

Prerequisite: the Solar-Log 400e is powered and connected to the local network via Ethernet (DHCP by default).

Find the IP address
Use your router’s DHCP list or a network scanner to locate the Solar-Log 400e on port 80.
Verify local API
Open http://<IP-address>/pc.js?min0 in a browser.
A plain-text JavaScript file should appear – this means the local API is enabled.
Add the device in SmartgridOne
- Go to Integrations → Add device.
- Choose Solar-Log Gateway Local API.
- Enter the IP address, keep the default port 80 and confirm.
- The gateway and its attached inverters will be detected automatically.
(Optional) Static IP
For stable operation, reserve the IP in your DHCP server or configure a static address in the Solar-Log web UI (Settings → Network).

Key	Description	Unit
`actualPowerTot_W`	Instantaneous AC power of the PV plant	W
`producedEnergyDeltaTot_Wh`	Energy produced since previous read-out¹	Wh
`importedEnergyDeltaTot_Wh`	Imported energy (if the gateway measures it)	Wh
`exportedEnergyDeltaTot_Wh`	Exported energy (feed-in)	Wh

¹ The driver integrates actualPowerTot_W over time when absolute kWh counters are not available.

No data / status 302 – check that /pc.js?min0 returns HTTP 200 and contains the variables Serialnr, Pac, SLTyp, WRTyp.
A redirect or login page indicates the local API is disabled.
Power always zero – firmware < 2.1 may report Pac=0.
Update to a recent firmware from the Solar-Log support portal.
Multiple gateways – be sure each Solar-Log has a unique hostname or static IP to avoid discovery conflicts.

Solar-Log knowledge-base –
[https://www.solar-log.com/en/support/faq]
Modbus/TCP documentation – available in the “Downloads” section of the Solar-Log portal.

Device Type	Modbus TCP (Ethernet)	RS485
Solar-Log 400e Gateway	✅	❌

Prerequisite: the Solar-Log 400e is powered and connected to the local network via Ethernet (DHCP by default).

Find the IP address
Use your router’s DHCP list or a network scanner to locate the Solar-Log 400e on port 80.
Verify local API
Open http://<IP-address>/pc.js?min0 in a browser.
A plain-text JavaScript file should appear – this means the local API is enabled.
Add the device in SmartgridOne
- Go to Integrations → Add device.
- Choose Solar-Log Gateway Local API.
- Enter the IP address, keep the default port 80 and confirm.
- The gateway and its attached inverters will be detected automatically.
(Optional) Static IP
For stable operation, reserve the IP in your DHCP server or configure a static address in the Solar-Log web UI (Settings → Network).

Key	Description	Unit
`actualPowerTot_W`	Instantaneous AC power of the PV plant	W
`producedEnergyDeltaTot_Wh`	Energy produced since previous read-out¹	Wh
`importedEnergyDeltaTot_Wh`	Imported energy (if the gateway measures it)	Wh
`exportedEnergyDeltaTot_Wh`	Exported energy (feed-in)	Wh

¹ The driver integrates actualPowerTot_W over time when absolute kWh counters are not available.

No data / status 302 – check that /pc.js?min0 returns HTTP 200 and contains the variables Serialnr, Pac, SLTyp, WRTyp.
A redirect or login page indicates the local API is disabled.
Power always zero – firmware < 2.1 may report Pac=0.
Update to a recent firmware from the Solar-Log support portal.
Multiple gateways – be sure each Solar-Log has a unique hostname or static IP to avoid discovery conflicts.

Solar-Log knowledge-base –
[https://www.solar-log.com/en/support/faq]
Modbus/TCP documentation – available in the “Downloads” section of the Solar-Log portal.