A method for configuring access control devices of an access control system, comprising a number of access control devices and a central server, to which the access control devices can be connected for the purpose of data communication, characterised in that the access control devices of the access control system are divided into groups, wherein each access control device is assigned to only one group and wherein the access control devices of a group comprise at least one common configuration profile and are located in a contiguous spatial area of the access control system, wherein each group has coordinates assigned to it, wherein each access control device is uniquely identifiable by an ID contained in a barcode or an RFID tag attached to the access control device, wherein the coordinates of the groups of access control devices of the access control system are displayed by means of a touch-sensitive display of a portable electronic device comprising a GPS module and a camera and/or a RFID module, by means of transparently implemented symbols (2, 3, 4, 5, 6, 7) within a prescribed border, wherein the distance of the coordinates assigned to the groups from the portable electronic device is ascertained by way of the known coordinates of the groups of the access control devices of the access control system and the data of the GPS module of the portable electronic device, wherein the symbol assigned to the group nearest the portable electronic device is displayed centred on the display, wherein the at least one configuration profile of the group whose symbol is displayed centred on the display, is selected as configuration profile of the access control device to be configured, wherein, given the case that the ID of the access control device to be configured is contained in a barcode attached to the access control device, the displayed symbols (2, 3, 4, 5, 6, 7) are inserted into the image captured by the camera of the portable electronic device, wherein the barcode attached to the access control device to be configured is captured by the user of the portable electronic device by means of the camera of the portable electronic device in such a way that it is located within the prescribed border of the symbol displayed centred on the display, wherein, by lightly touching the symbol displayed centred on the display within the prescribed border, the barcode is scanned by means of the camera, and the ID it contains of the access control device to be configured is captured by means of suitable software, wherein, given the case that the ID of the access control device to be configured is contained in an RFID tag attached to the access control device, the symbols (2, 3, 4, 5, 6, 7) assigned to the coordinates of the groups of access control devices of the access control system are inserted on the display of the portable electronic device, wherein inside the prescribed border of the symbol displayed centred on the display a symbol is displayed, which is assigned to the "read RFID tag" function, wherein by lightly touching the symbol displayed centred on the display inside the prescribed border the RFID tag is read out by means of the RFID module of the portable electronic device and the ID it contains of the access control device to be configured is captured by suitable software, and wherein subsequently the ID of the access control device to be configured and the information that the at least one configuration profile of the group, whose symbol is displayed centred on the display, has been selected as the configuration profile of the access control device to be configured, is communicated to the central server, wherein subsequently the central server in which the configuration profiles and their assignments to the groups are stored, transfers the at least one configuration profile of the group to the access control device to be configured by way of the selected group, to which the access control device to be configured has been assigned, and the ID of the access control device to be configured.