Overview > iolink > secondary > Secondary Device Functions Secondary Device Functions Operating Hours Counter Description Algorithm Process Data ISDU Current Operating Hours Parameter Total Operating Hours Parameter Custom Operating Hours Parameter Operating Hours Saving Mode System Commands Boot Cycle Counter Description Process Data ISDU Boot Cycle Counter Parameter Custom Boot Cycle Counter Parameter System Commands Internal Temperature Description Process Data ISDU Device Temperature Device Temperature Alarm Configuration Events Signal Delay Description Mathematics/Algorithm Process Data ISDU Signal Delay Input Parameter Signal Delay Mode Parameter Signal Delay On-Delay Parameter Signal Delay Off-Delay / One-Shot Parameter Signal Delay Status Parameter System Commands Stroke monitoring Distance counter Description Stroke counter Description Stroke deviation Description ISDU Stroke monitoring configuration CHx start CHx end CHx sensing window CHx stroke mode CHx enable Global enable Data storage cycle Jitter window Distance counter Actual distance Since startup Since reset Lifetime Stroke counter CHx actual CHx since reset CHx lifetime Stroke deviation CHx actual CHx startup relative CHx reset relative CHx lifetime relative Switching signal channel Description Evaluation logic Overview of switching signal channels Switchpoint logic Switchpoint mode Single point mode Two point mode Window mode Teaching Single value teach ISDU Teach-in select Teach-in result SSC 1.x configuration Switchpoint logic Switchpoint mode Hysteresis SSC 1.x parameter Storage Usage Monitoring Description Events