GE PACSystems RXi User Manual

Chapter 4. ConfigurationGFK-2816F August 2015 37These parameters specify basic operating characteristics of the CPU. For additional detailson how these parameters affect CPU operation, refer to Chapter 5.4.1.1 Controller Settings ParametersSettings ParametersPasswords Specifies whether passwords are Enabled or Disabled. Default: Enabled.Notes: If Enhanced Security is enabled in the target properties, the Passwordssetting will be Enabled and read-only, and the Access Control tab (page 46appears.When passwords are disabled, they cannot be re-enabled without clearingController memory.Stop-Mode I/O Scanning Specifies whether the I/O is scanned while the Controller is in Stop mode.Default: DisabledWatchdog Timer (ms) (Milliseconds in 10 ms increments.) Requires a value that is greater than the programsweep time.The software watchdog timer is designed to detect failure to complete sweepconditions. The CPU restarts the watchdog timer at the beginning of each sweep. Thewatchdog timer accumulates time during the sweep. The software watchdog timer isuseful in detecting abnormal operation of the application program, which could preventthe CPU sweep from completing within the watchdog time period.Valid range: 10 through 2550, in increments of 10.Default: 200.Logic/ConfigurationPower-up SourceSpecifies the location/source of the logic and configuration data that is to be used (orloaded/copied into RAM) after each power-up.Choices: Always RAM, Always Flash, Conditional Flash.Default: Always RAM.Data Power-up Source Specifies the location/source of the reference data that is to be used (or loaded/copiedinto RAM) after each power up.Choices: Always RAM, Always Flash, Conditional Flash.Default: Always RAM.Power-up Mode Selects the CPU mode to be in effect immediately after power-up.Choices: Last, Stop, Run.Default: Last (the mode it was in when it last powered down).Notes: If the CPU does not have an Energy Pack and if Logic/ConfigurationPower-up Source is set to Always RAM, the CPU powers up in Stop moderegardless of the setting of the Power-up Mode parameter.If Power-up Mode is set to Last and Logic/Configuration Power-up Source isset to Always Flash or Conditional Flash, the CPU powers up inRun/Disabled mode.Modbus Address SpaceMapping TypeSpecifies the type of memory mapping to be used for data transfer between ModbusTCP/IP clients and the PACSystems controller.Choices:Disabled: The Disabled setting is intended for use in systems containing Ethernetfirmware that does not support Modbus TCP.Standard Modbus Addressing: Causes the Ethernet firmware to use the standardmap, which is displayed on the Modbus TCP Address Map tab.Default: DisabledFor details on the PACSystems RXi implementation of Modbus TCP server, refer toSection 8.5, Modbus TCP Server Operation.