I have 2 Tstat10’s using MODBUS across the RS485 link to transfer several variables. Initially everything works as you would expect. After several hours neither unit will respond to a scan from T3000. The unit which is the MODBUS 485 master will respond to a ping of its IP address the one that is a MODBUS slave does not. If I plug in a RS485 adapter into the jack on the MODBUS Master Tstat10 the slave Tstat10 responds to an IP address ping. A T3000 scan finds no devices on both the ethernet and RS485 connection.
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