Authorization management system with four authorization levels
Freely programmable via IO-Link
Easy handling thanks to color recognition
ID-key-operated switches are used in place of conventional key-operated switches particularly in industrial plants, where the enabling of functions is required periodically and frequently has safety-related implications, and where different authorization levels are necessary for operating a system.
Switches and keys are not coupled mechanically, but are linked via a wireless connection using a tag that is built into an ID key and read by the transmitter unit in a switch. Keys and switches are plastic-coated, and do not come into contact at the wireless interface. This protects the electronics in the switches against external influences such as dirt and water. An additional advantage over conventional keys is that the tag, and thus the authorization levels of a key, can be modified remotely. If an ID key (or tag) is lost, it can simply be blocked. This function can also be used to restrict access to specific periods of time. In addition, a number of different evaluations are possible based on particular timeframes, e.g. during active production, when configuring or in the event of faults.