When activating a communication device to start communication, it takes time to perform automatic negotiation processing from when communication device starts processing until communication by the communication device is enabled. A communication apparatus includes a communication device configured to communicate with an external apparatus, and a control unit configured to control the communication apparatus. When starting communication with the external apparatus by activating the communication device in a non-operating state, the control unit controls the communication device such that a setting sequence for making a communication setting for a communication interface based on a predetermined communication method which is included in the communication device is executed in parallel with a starting sequence for activating the communication device.

A camera for industrial image processing having a camera module and an objective module that is releasably connected thereto and has an optical system having at least one optical lens preferably comprises—in the camera module—an image sensor for capturing an image and a camera control unit for controlling the camera module and/or the objective module, and—in the objective module—a storage unit having lens data, wherein interacting wireless near field communication units are provided in the camera module and in the objective module, wherein the near field communication unit in the objective module converts an electromagnetic alternating field emitted from the near field communication unit in the camera module into electrical energy for supplying energy to the objective module, and the camera module reads the lens data out via the near field communication units, and the camera control unit controls therewith a function of the camera module and/or of the objective module.

When activating a communication device to start communication, it takes time to perform automatic negotiation processing from when communication device starts processing until communication by the communication device is enabled. A communication apparatus includes a communication device configured to communicate with an external apparatus, and a control unit configured to control the communication apparatus. When starting communication with the external apparatus by activating the communication device in a non-operating state, the control unit controls the communication device such that a setting sequence for making a communication setting for a communication interface based on a predetermined communication method which is included in the communication device is executed in parallel with a starting sequence for activating the communication device.