Arduino modbus rtu over web page

Application (below) using ProDino board ? [login to view URL] I think this example can also be used by other customers who want simple monitoring of items over modbus without using a complicated bms network. There are already examples on kmpelectronics to do the auth and rs485 connections. My simple application is like this: WEB page (with auth) to monitor a few modbus RTU registers over rs485 port from a slave device (chiller unit) and set 3 parameters ( alarm reset, on/off, setpoint ). Display 3 temperature probes over the 1wire connection. OPTION to send on/off switch to the unit (over RS485) based on the temperature of one of the 1wire probe. (thermostat function, temperature to turn on, temperature to turn off..) Option to configure the ip address and user/pass to authenticate... This is already done in another example with relays.. Also please let me know if these parameters can be stored if there is a power loss from the arduino device. (the thermostat function settings for example)