System OperationCopyright © 2007-2018 Eaton Corporation. All Rights Reserved.IPN 997-00012-03 B2 Issue B2 July 2018 83Input/Output (I/O)The following section describes the I/O functions available with a single IOBGP I/O board. Also see I/O Board Mapping on page 145.Optional SiteSure-3G Input / Output (I/O) modules or additional IOBGP I/O boards can beconnected to the SC300 to provide additional I/O to monitor and control external devices. Fordetails refer to the SiteSure-3G Installation Guide (see Related Information on page i).Identify an I/O BoardInput /Output (I/O) boards and SiteSure-3G modules are referenced by their serial numbers.► To identify a particular I/O board or SiteSure-3G moduleEither:• On SC300 keypad go to: Settings > IOBs and select a module or board. Press Enter. The I/O board details screen appears. Use to scroll to other I/O boards.• The Power-on LED on the selected I/O board or SiteSure-3G module will flash for 60 seconds(or press Esc to stop).Or:• On the web, go to: System > Interfaces > RXP > RXP Devices.• Web: click on Start Identifying.• The Power-on LED on the selected I/O board or SiteSure-3G module will flash for 60 seconds.Analog System ValuesThe SC300 provides access to the following system analog values.Parameter Description Where to find:Bus Voltage The average of all analog inputs configured as BusVoltage. Otherwise, the system bus voltage isdetermined from the rectifier output voltages.SC300: AnalogsDCTools:Analog Inputs >System ValuesWeb: AnalogInput / Output> Analog Inputs> System ValuesLoad Current The sum of any analog inputs configured as LoadCurrent. Otherwise, if Battery Current is available, theLoad Current is calculated as Rectifier Current +Alternative Source Current - Battery Current. Otherwiseit is unavailable.Rectifier Current The sum of any analog inputs configured as RectifierCurrent. Otherwise, if there are Battery and LoadCurrents, the Rectifier Current is calculated as BatteryCurrent + Load Current - Alternative Source Current.Otherwise, Rectifier Current is determined as the sumof all reported rectifier output currents.Battery Current The sum of any analog inputs configured as BatteryCurrent. Otherwise, if Load Current is available, theBattery Current is calculated as Rectifier Current +Alternative Source Current - Load Current. Otherwise itis unavailable. If positive, the battery is beingcharged.