DigitalInput/CounterInputChannels4TypeWetContact(Sink)OnVoltageLevel+3.5VDC~50VDCOffVoltageLevel+1Vmax.InputImpedance10KΩ,0.66WCountersChannels4Max.Counts65535(16-bit)Max.InputFrequency100HzMin.PulseWidth5msOvervoltageProtection70VDCDigitalOutputOutputChannels4TypeIsolatedOpenCollector(Source)Max.LoadCurrent650mA/channelLoadVoltage+10VDC~+40VDCOvervoltageProtection47VDCOverloadProtectionYesShort-circuitProtectionYesPowerOnValueYes,ProgrammableSafeValueYes,ProgrammableCommunicationInterfaceRS-485Format(N,8,1),(N,8,2),(O,8,1),(E,8,1)BaudRate1200~115200bpsProtocolDCON,Modbus/RTU,Modbus/ASCIIDualWatchdogYes,Module(2.3seconds),Communication(Programmable)LEDIndicatorsPower1LEDasPowerIndicatorIsolationIntra-moduleIsolation,Field-to-Logic3750VDCEMSProtectionESD(IEC61000-4-2)&plu***n;4kVContactforEachTerminal&plu***n;8kVAirforRandomPointEFT(IEC61000-4-4)&plu***n;4kVforPowerPowerRequirementsReversePolarityProtectionYesPoweredfromTerminalBlockYes,10~30VDCC***umption0.5WMax.MechanicalDimensi***(WxLxH)52mmx98mmx27mmInstallationDIN-RailMountingEnvironmentOperatingTemperature-25°C~+75°CStorageTemperature-30°C~+75°CHumidity10~95%RH,Non-condensing)