CJ2 CPU Unit Software User's Manual - CIP ETI

AppendicesA-3 Auxiliary AreaA000 to A447: Read-only Area, A448 to A1000: Read/Write AreaA-3-1Read-only Area (Set by System)WordsAddressBitsNameA0 --- 10-ms IncrementingFreeRunning TimerA1 --- 100-ms IncrementingFreeRunning TimerA2 --- 1-s IncrementingFree RunningTimerA50A51 toA69A90 toA93A94 toA97A50.00 toA50.07A50.08 toA50.15A51.00 toA69.15Basic I/O UnitInformation,Rack 0 Slot 0Basic I/O UnitInformation,Rack 0 Slot 1Basic I/O UnitInformation,Racks 0 Slot 2 toRack 3 Slot 9--- User ProgramDateFunctionThis word contains the system timer used after the power isturned ON.A0 is set to 0000 hex when the power is turned ON and this valueis automatically incremented by 1 every 10 ms. The value returnsto 0000 hex after reaching FFFF hex (655,350 ms), and then continuesto be automatically incremented by 1 every 10 ms.The timer will continue to be incremented when the operatingmode is switched to RUN mode.Example: The interval can be counted between processing A andprocessing B without requiring timer instructions. This is achievedby calculating the difference between the value in A000 for processingA and the value in A000 for processing B. The interval iscounted in 10 ms units.This word contains the system timer used after the power isturned ON.A1 is set to 0000 hex when the power is turned ON and this valueis automatically incremented by 1 every 100 ms. The valuereturns to 0000 hex after reaching FFFF hex (6,553,500 ms), andthen continues to be automatically incremented by 1 every100 ms.The timer will continue to be incremented when the operatingmode is switched to RUN mode.This word contains a system timer used after the power is turnedON.A2 is set to 0000 hex when the power is turned ON and this valueis automatically incremented by 1 every 1 s. The value returns to0000 hex after reaching FFFF hex (65,535 s), and then continuesto be automatically incremented by 1 every 1 s.The timer will continue to be incremented when the operatingmode is switched to RUN mode.A bit will turn ON to indicate when the load short-circuit protectionfunction alarm output has been given.Only the 4 most LSB are used for the CJ1W-OD202 (2 points perbit), only the LSB is used for the CJ1W-OD212, OD204, MD232and only the two most LSB are used for the CJ1W-OD232.ON: Short circuitedOFF: NormalThese words contain in BCD the date and time that the user programwas last overwritten.A90.00 to A90.07: Seconds (00 to 59)A90.08 to A90.15: Minutes (00 to 59)A91.00 to A91.07: Hour (00 to 23)A91.08 to A91.15: Day of month (01 to 31)A92.00 to A92.07: Month (01 to 12)A92.08 to A92.15: Year (00 to 99)A93.08 to A93.07: Day of the week(00: Sunday, 01: Monday, 02: Tuesday, 03: Wednesday, 04: Thursday,05: Friday, 06: Saturday)--- Parameter Date These words contain in BCD the date and time that the parameterswere last overwritten.The format is the same as aboveStatusafter modechangeStatus atstartupWrite timing/Related flags, settingsRetained Cleared Every 10 ms afterpower is turned ONRetained Cleared Every 100 ms afterpower is turned ONRetained Cleared Every 1 s afterpower is turned ON--- --- Refreshed eachcycle.--- ------ ---Retained Retained ---Retained Retained ---A-106 CJ2 CPU Unit Software User’s Manual