The Solar King 119-SIRS-002 is an industrial RS485 communication module with Modbus protocol, designed for installation in the expansion slot of Solar King SLK series photovoltaic inverters (e.g. SLK-6000).

These inverters support optional communication cards (RS485 or SNMP), allowing integration into monitoring systems and enabling remote supervision and control of the PV plant.

⚙️ Main Function

This board allows:

• Transmission of inverter operational data
• Connection to external monitoring systems
• Integration into industrial supervision networks

👉 It effectively transforms the inverter into a remotely monitorable and controllable device

🔌 Interfaces & Connections

• 2 × RJ45 RS485 ports → serial bus connection
• RS485 terminal block (R+, R-, T+, T-) → direct wired connection
• DIP switch → address and communication parameter configuration
• Status LEDs → operation diagnostics
• RESET button

🧠 Communication Protocol

• Protocol: Modbus RTU
• Physical interface: RS485 (differential, industrial standard)
• Communication type: Multi-device BUS (half-duplex)

👉 RS485 ensures reliable long-distance communication in industrial environments

📊 Monitoring Capabilities

Through software or dataloggers, the system can read:

• Energy production (kWh)
• Instantaneous power (W)
• DC/AC voltages
• Currents
• Inverter status
• Alarms and faults

🔗 Applications

• Photovoltaic system monitoring
• Integration with SCADA systems
• Connection to external dataloggers
• Centralized supervision of multiple inverters

🏭 Compatibility

Designed for Solar King / Powercom SLK series inverters, including:

• SLK-2000
• SLK-3000
• SLK-4000
• SLK-6000

👉 Specifically built for the internal communication slot of these models

🧩 Technical Features

• Communication: RS485 half-duplex
• Protocol: Modbus RTU
• Configuration: DIP switch
• Installation: Plug-in internal board
• Power supply: Provided by inverter

⚠️ When It Is Used

• To enable remote monitoring via PC or cloud systems
• To connect multiple inverters in a communication network
• To integrate with energy management or industrial control systems

📦 Product Condition

• Electronic board (used / refurbished)
• Tested (if specified)
• Professional technical spare part

💡 Summary

The Solar King 119-SIRS-002 is an essential RS485 Modbus communication board for SLK inverters, enabling:

✔ Remote monitoring
✔ Energy data acquisition
✔ Inverter diagnostics
✔ Integration into industrial systems