Modbus RTU Protocol is used to establish master-pupil communication between intelligent devices.
It is “de facto” a standard, truly open and the most widely used network protocol in the industrial manufacturing environment.

Chromatotec offers Modbus/Jbus as option. The supervisor model XXX015 (Pupil) measures parameters (e.g. concentration, peak area, retention time, status, method, calibration) and communicates these results to a remote terminal unit (Master) such as a data-logger. The information is sent via serial link such as RS-232 (Maximum 1.5 m), RS-485 (Maximum 1200 m) or by Ethernet.

The list of information available to be exchanged is called a mapping and can be viewed thanks to the Vistachrom software on the supervisor.