Methods, devices, and code for controlling a coating process

A method for controlling a coating process for coating a substrate, the method comprising:

• controlling a first actuator that supplies the coating process based on a plurality of monitored process variables of the coating process detected in parallel with one another;
• and
• controlling a second actuator that supplies the coating process based on the plurality of monitored process variables, wherein at least one of the plurality of monitored process control variables interacts with at least another of the plurality of process control variables.

A method for calibrating a coating process for coating a substrate, the method comprising:

• determining a first response of a first monitored process variable and a second monitored process variable of the coating process, wherein the first response results from actuating a first actuator that supplies the coating process and is based on a first variation of the coating process from a reference state;
• determining a second response of the first monitored process variable and the second monitored process variable, wherein the second response results from actuation of a second actuator that supplies the coating process and is based on a second variation of the coating process from the reference state;
• wherein determining the second response is performed after determining the first response.