ADAM-4000 Series User Manual 318A.19 ADAM-4080 Counter/Frequency Input ModuleTable A.23: ADAM-4080 SpecificationsInput channel number 2 independent 32-bit countersInput frequency 50 kHz maximumInput mode Isolated or non-isolatedIsolation input levelLogic level 0Logical level 1+1 V maximum+3.5 V to +30 VIsolation voltage 2500 VRMSNon-isolation input levelLogic Ievel 0Logic level 1Programmable threshold0 to +5 V (default = 0.8 V)0 to +5 V (default = 2.4 V)Input pulse width >10 μsecMaximum count 4,294,967,295 (32 bits)Programmable digital noise filter 2 μsec to 65 msecAlarming Alarm comparators on each counterPreset type Absolute or relativeFrequency measurement RangeProgrammable built-in gate time5 Hz to 50 KHz1.0/0.1 secDigital output channelsSink currentPower dissipation2 channels open collector to 30 V30 mA max. load300 mWSupport protocol ADAM ASCIIWatchdog timer 1.6 second (System)Power requirements +10 to +30 VDC (non-regulated)Power consumption 2.0 W@ 24 VDC