• Cerbo GX Connections

  Can you connect multiple IMT Si-RS485 solar sensors to a Cerbo GX?

  Posted by Riovar on January 8, 2024 at 2:07 pm

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  Is it possible to connect multiple IMT Si-RS485 series solar irradiance sensors to a common Victron GX device?

  SunsetSeeker replied 5 months, 3 weeks ago 2 Members · 1 Reply
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  SunsetSeeker

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  January 8, 2024 at 2:09 pm

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  Linking various IMT Si-RS485 series solar irradiance sensors to a single Victron GX device is feasible.

  Nevertheless, it’s important to allocate a distinct Victron RS485 to USB interface for each sensor, as combining multiple units on a single interface is incompatible with the Venus OS software.

  Configuration Details:

  Generally, no special adjustments are necessary. The sensors are shipped with a default configuration that’s already set for integration with a Victron GX device.

  However, if the IMT Si-RS485 series solar irradiance sensor has been previously modified or used with another system, reverting to the original settings is crucial. Utilize the IMT ‘Si-MODBUS-Configuration software tool’ for this purpose.

  Consult the ‘Si Modbus Configurator Documentation’ for detailed guidance and ensure the following settings are correct:

  • MODBUS Address: 1
  • Baud Rate: 9600
  • Data Format: 8N1 (10 Bit)

  For any additional assistance or queries regarding the setup of the IMT Si-RS485 Series irradiance sensors, reaching out directly to IMT Solar is recommended.

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