Modbus RTU – how to interconnect Sentera devices - How to restore the factory default settings of a Sentera device?

How to restore the factory default settings of a Sentera device?

The settings of Sentera products can be changed via the parameters in the Modbus Holding registers. We distinguish between communication parameters and operational parameters.

Resetting the communication parameters is hardware-based. Such a reset is often required when communication via software is no longer possible. To reset the Modbus communication parameters to their factory default values, put a jumper on pins 1 and 2 of the P1 header for at least 5 seconds.

The operational parameters can be reset via the 3SModbus configuration software or via the Sensistant Modbus configurator by activating Holding register 10. By doing so, all operational parameters are reset to their factory default value. It is also possible to manually reset individual parameters to their factory default value via the software.

This video shows how the hardware and software reset are performed on an HVAC sensor:

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