The invention claimed is:1. A camera, comprising:an image sensor for recording image data from a field of vision;a communication interface for connection to at least one further camera in a network;a control and evaluation unit for reading the image data; anda memory in which a parameter set for the operation of the camera is stored,wherein at least one further parameter set for the operation of the at least one further camera of the network is stored in the memory,wherein a device map including an identification or address of the at least one further camera is stored in the memory,wherein the control and evaluation unit is configured to recognize a camera replacement in the network when the at least one further camera is no longer connected in the network and a new camera is subsequently connected in the network, andwherein the control and evaluation unit is further configured to report itself as a master to the network upon recognizing the camera replacement, the master being responsible for transferring the device map and the at least one further parameter set to the new camera.2. The camera in accordance with claim 1,wherein a network configuration is stored in the memory.3. The camera in accordance with claim 1,wherein the device map includes the identification or the address for ones of the camera and the at least one further camera which mutually save a parameter set for one another.4. The camera in accordance with claim 1,wherein further parameter sets for the operation of at least two further cameras of the network are stored in the memory.5. The camera in accordance with claim 1,wherein the control and evaluation unit is configured to communicate the network configuration of the no longer connected further camera to the new camera.6. The camera in accordance with claim 1, wherein the control and evaluation unit is configured to communicate an updated device map to the network including the new camera.7. The camera in accordance with claim 1, wherein the control and evaluation unit is configured to transfer the further parameter set stored for the previously connected further camera to the new camera.8. The camera in accordance with claim 1, wherein the control and evaluation unit is configured to initiate a transfer to the memory of the new camera of the further parameter sets of a further camera that were stored in the memory of the no longer connected camera.9. The camera in accordance with claim 1, wherein a control and evaluation unit of the new camera is configured to recognize that it is in a still unconfigured state and to wait for communication requests of the network and/or to recognize that the network is not the one of the at least one further camera for which a further parameter set has been stored and to wait for communication requests of the network.10. The camera in accordance with claim 1,wherein the control and evaluation unit is configured to compare a further parameter set stored in the memory with a further camera.11. The camera in accordance with claim 1,wherein the control and evaluation unit is configured to read codes in the image data.12. A camera apparatus having a plurality of cameras that are connected in a network, the cameras each comprising an image sensor for recording image data from a field of vision, a communication interface for connection to at least one further camera in a network, a control and evaluation unit for reading the image data, and a memory in which a parameter set for the operation of the camera is stored, wherein at least one further parameter set for the operation of the at least one further camera of the network is stored in the memory,wherein a device map including an identification or address of the at least one further camera is stored in the memory,wherein the control and evaluation unit is configured to recognize a camera replacement in the network when the at least one further camera is no longer connected in the network and a new camera is subsequently connected in the network, andwherein the control and evaluation unit is further configured to report itself as a master to the network upon recognizing the camera replacement, the master being responsible for transferring the device map and the at least one further parameter set to the new camera.13. The camera apparatus in accordance with claim 12 that is configured as a reading tunnel for reading codes on objects that are conveyed through the reading tunnel.14. A method for the replacement of a camera in a camera apparatus, comprising the steps of:establishing a camera network including a plurality of cameras, wherein each of the cameras has a device map stored in memory including an identification or address of at least one further camera of the camera network, and wherein each of the cameras has a parameter set for operation of the corresponding one of the cameras stored in the memory, and wherein each of the cameras has a further parameter set for operation of the at least one further camera stored in the memory;upon recognition of replacement of one of the cameras in the camera network with a new camera, one of the cameras reporting itself as a master to the network, the master being responsible for transferring the device map and the further parameter set to the new camera; andtransferring the further parameter set of a replaced one of the cameras and the device map to the new camera.
