Data loggers
Solis MB-S4-W4 data logger for C&I
Solis MB-S4-W4 (C&I Data Logger) is a high-performance commercial data logger and control cabinet designed specifically for large-scale C&I (commercial and industrial) solar power plants. It supports up to 60 inverters, features built-in 4G/LAN/Wi-Fi connectivity and carries an IP65 rating for outdoor installation.
Models
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1 / 5
Overview
Solis MB-S4-W4 is a dedicated solution for centralised monitoring and control of commercial and industrial solar power plants. The data logger is supplied as a protected cabinet unit that combines data acquisition, power control and uninterrupted communication with cloud services.
The device supports simultaneous connection of up to 60 Solis inverters through multi-channel RS485 interfaces. Data is transmitted to the SolisCloud platform or external dispatch systems over a hybrid communication channel — high-speed 4G (LTE), wired Ethernet (LAN) or wireless Wi-Fi. This gives the monitoring system complete fault tolerance even if one of the internet connections fails.
Solis MB-S4-W4 is fully compatible with the industrial Modbus RTU/TCP and SunSpec protocols, allowing straightforward integration into complex SCADA, metering and EMS platforms. The IP65-rated enclosure protects the internal power supply, communication hardware and protective circuit breakers from dust, moisture and temperature swings, so the unit can be mounted directly beside the inverter array.
Key specifications
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Application
For business and commerce, Industrial sites / utility-scale PV
Key features
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Monitoring of up to 80 PV inverters
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Support for remote updates and maintenance
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Compatibility with a range of export power limitation scenarios
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Data transmission between multiple master stations
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Built-in web server for monitoring and configuration, no additional software required MB-S4-W4 Intelligent monitoring solution - MB-S4-W4 Solis inverter PV PV PV PV DC AC Internet
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One-click address assignment for fast commissioning
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Automatic switching between two power sources
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Resumed transmission after an outage: supports offline data storage for up to 30 inverters for 30 days; 15 days for 60 inverters, decreasing proportionally as more inverters are connected SolisCloud Router Ethernet 4G/Wi-Fi
Technical specifications
Models
SKU: MB-S4-W4 MB-S4-W4
Communication
- Max. number of devices that can be connected to the management system
- 80, each RS485 port ≤ 20
- Status indicator
- LED × 4
- WEB
- Built-in web server
- RS485
- COM × 4, communication distance ≤ 1000 m
- Ethernet communication
- LAN × 2, 10/100 Mbps adaptive, communication distance ≤ 100 m
- Wireless communication
- Mobile network: 4G/3G/2G
- Digital / analogue
- DI × 4, DO × 2, AI × 4
- RS485 communication protocol
- Modbus-RTU
- Ethernet
- Modbus-TCP, IEC60870-5-104
- Electrical — power supply unit
- AC input: 100 ~ 240 V, 50 Hz / 60 Hz; DC output: 12 V, 4 A
- DC input
- input 1: 12 V, 1 A; input 2: 24 V, 0.8 A
- Power consumption
- ≤12 W
- Environment — operating temperature range
- -40 ~ +60°C
- Storage temperature range
- -40 ~ +70°C
- Relative humidity
- 5% - 95% (non-condensing)
- Max. altitude above sea level
- 4000 m
- Mechanical — dimensions (W × H × D)
- 225 × 156 × 44 mm
- Weight
- 1.25 kg
- Ingress protection (IP)
- IP20
- Mounting method
- Wall or desktop mounting
- Other certification
- CE, RoHS
- CHINT DTSU666 meter
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- Jinzhou Sunshine PC-4GF weather station
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Documentation and certificates
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DownloadDatasheet
Реєстратор даних Solis MB-S4-W4 для C&I.pdf
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DownloadUser manual
Реєстратор даних Solis MB-S4-W4 для C&I_інструкція.pdf
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DownloadCertificate 1
Реєстратор даних Solis MB-S4-W4 для C&I_сертифікат1.pdf
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Download
Certificate 2
Реєстратор даних Solis MB-S4-W4 для C&I_сертифікат2.pdf
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Download
Certificate 3
Реєстратор даних Solis MB-S4-W4 для C&I_сертифікат3.pdf
Frequently asked questions
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Start from the site's average daily consumption and the peak load the inverter has to carry in off-grid mode. The power range of each modification and the recommended PV array size for it are listed in the product card under "Key specifications" — for a precise selection, contact a Solis dealer or use the form below.
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The list of validated batteries is published on the product page — in the compatible-equipment section, where one has already been compiled for that model. The voltage range (LV or HV, depending on the series) is stated in the technical specifications either way. If there is no list, or the battery you need is not on it, contact the Solis Ukraine technical department — compatibility should be confirmed separately.
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Most Solis hybrid and off-grid inverters support connecting a generator with automatic start-up when the battery is discharged. Whether a specific model has this function, and how it is wired, is stated under "Key features" and in the "Technical specifications" table of the product card.
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It depends on the series: single-phase models are designed for a 220 V grid, three-phase models for 380/400 V. The exact connection type for a given product is stated in the "Grid phases" card under "Key specifications".
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Solis equipment carries the manufacturer's warranty, which in Ukraine is administered by official dealers and authorised service centres. The exact term and conditions are stated on the warranty card and on the device's rating plate — for registration and the claim procedure, see the Support section.
Didn't find your answer?
The Solis Ukraine technical department advises on equipment compatibility, wiring diagrams and system configuration.