- Display for displaying up to four process values - Electronic circuit breakers for the permanent monitoring of the 24 V secondary circuit - Reliable switch-off in case of a fault - Modular and selective protection of machinery and plant - With IO-Link for transmission of signals and diagnostic data ifm's range of IO-Link devices comprises displays and electronic circuit breakers. The IO-Link display indicates process values, texts and messages provided by the connected IO-Link master. It displays up to four assigned process values, alarms and warnings. The optional colour change of text and background can be used to get a quick overview. Electronic fuses permanently monitor the 24 V secondary circuit and reliably switch it off in the event of a failure. These electronic circuit breakers will also switch off circuits in cases where mechanical circuit breakers often do not trigger, e.g. in case of overload of a circuit with long cables. By means of a pushbutton, each channel of a fuse module can be activated, deactivated or reset individually. The module can also be operated and configured via IO-Link.