We are running a project in which we need to hook up a bunch of RUT955 routers (FW ver.: RUT9XX_R_00.06.07) in different locations to send measurement data to a single server using Modbus RS485.
As such, it would be of great benefit to be able to send a unique identifier (Modbus slave ID - %i is not enough as it only returns the slave ID) along with the data to let us know from whence the data was sent.
Such as the unit's MAC address.
It is possible to simply write the MAC address manually into the JSON format in the data sender, but that is far from optimal and prone to error as different people and companies will have to do their own setup.
Is there a way where this can be done automatically in a way that allows us to simply use the same configuration profile for all routers but still get unique identifiers in the data they send?