A method (100) of generating on-demand device templates for integrating a controller controllable (CC) device with a process controller in a processing plant. A device description for the CC device is obtained (101) including a list of device parameters, connection details for communications including assembly structures, and a mapping of the device parameters into the assembly structures or the device description. Using a device template generating algorithm a custom device template is generated (102) for the CC device (i) by modifying an existing device template to include at least one modification or (ii) from the device description.