Friday, February 20, 2015

Proaster and Artisan

COFFEE OLLE, a coffee roaster in Hong Kong, posted instructions on how they connect Artisan directly via USB to their 5Kg THCR-03 Proaster shop roaster.

The Proaster talks MODBUS RTU via RS485 and features an RS485-to-USB converter (usually an Autonics SCM-US48I) that allows to connect directly to a computers USB.

After installing Artisan as well as the proper RS485-to-USB USB driver (usually the FTDI VCP) one needs to configure MODBUS as main device (menu Config >> Device).

Then Artisan needs to now at which slave/register combinations to retrieve the ET/BT temperatures from (menu Config >> Serial Port, MODBUS tab), as well as the serial communication parameters

This configuration has been reported to work also with the 1.5Kg THCR-01 Proaster and might apply also to Proaster roasters of other sizes.