Rack Viewer
Original instructions
About us
Introducing the CPU Status Page
The BMEH584040(S) and BMEH586040(S) Hot Standby CPUs include a Rack Viewer web page. Use this page to view CPU information, including:
Accessing the Rack Viewer Page
Access the Rack Viewer page from the Diagnostics menu. In the navigation menu at the left side of the page, select Menu → System → Rack Viewer:
Rack Viewer Data
The Rack Viewer page for M580 Hot Standby CPUs displays the following data:
Data Field
Description
Processor
RAM size (kb)
The size of processor RAM in KB
Processor Version
Firmware version
Hardware ID
An identifier for the module hardware. OS Loader checks this value to determine compatibility between the hardware and the operating system.
State
The operating state of the processor:
  • NO CONFIGURATION
  • IDLE
  • STOP
  • RUN
  • HALT
  • INITIALIZING
  • ERROR
  • OS LOADER
Error
The identity of the last detected error
Calendar
Date and time of last detected error
Signature
CID
Creation ID: Random number generated when an application is created. The number remains a constant.
MID
Modification ID: Random number generated on each application modification and rebuild, either partial or global. When an application is created, MID = CID.
AID
AutoModification ID: A new random value is generated for AID by the PAC after one of the following minor modifications to the application:
  • a Control Expert request to modify %KW
  • a P_Unit request that performs a save_param request or replaces init value
When an application is created or built in local mode, AID = 0.
LID
Layout ID: Random number generated after a modification of the variable layout. LID does not change as a result of a runtime change either adding or deleting a data block.LID changes only on when the global rebuild of the application.
LID addresses the needs of Hot Standby. It permits the transfer of a memory block from the primary PAC to the standby so that application variables (except for deleted or new ones) exist at the same location.
LID = CID = MID when the application is created.
DID
Data ID: Indicates that a block of data has been freed. Also used for the special case of remapping a symbol from unlocated to located.
Application
Name
Name of the Control Expert project
Version
Project version
Creation Product
Includes both:
  • Version and build of Control Expert used to create the project.
  • Date and time the project was created.
Modification Product
Includes both:
  • Version and build of Control Expert used to edit the project.
  • Date and time the project was last edited.
Events Disabled
Indicates if all event processing has been disabled:
  • True indicates all event processing has been disabled.
  • False indicates event processing has not been disabled.
NOTE: Events can be enabled/disabled by using:
  • The Enable or Disable all command in the Task tab of the CPU.
  • The MASKEVT and UNMASKEVT functions.
  • System bit %S38.
Forced bit
The number of forced bits in the application.
Analog channel forced:
Indicates if one or more inputs or outputs for an analog channel have been forced:
  • True indicates the an analog input or output has been forced.
  • False indicates no analog input or output has been forced.
Last Stop
The event that last caused the application to stop. Values include:
  • Changeover from RUN to STOP by the terminal or dedicated input
  • Stop on software detected fault (task overrun or SFC overrun)
  • Power loss detected
  • Stop on hardware detected fault
  • Stop on HALT instruction
Last Stop Date
Date an event last caused the application to stop.
Section protected
Indicates if password access is required to edit one or more sections of the application:
  • True indicates that a password is required to edit specified sections of the application.
  • False indicates that no password is required for application editing.
Automatic Start in Run
Indicates if the application is automatically set to start when the PAC goes into RUN operational mode:
  • True indicates the application automatically starts.
  • False indicates the application does not automatically start.
RAZ %MW on cold start
Indicates if %MW registers are reset to their initial values on a cold start:
  • True indicates that values are reset.
  • False indicates that values are not reset.
Cold Start only
Indicates if a cold start is forced on a system re-start:
  • True indicates that a reset forces a cold start of the application.
  • False indicates that a warm start will occur on application reset.
Diagnostic
Indicates if the diagnostic buffer has been activated for the project:
  • True indicates that Application diagnostics and/or System diagnostics has been selected in the General → PAC Diagnostics tab of the Project Settings dialog for the application.
  • False indicates Application diagnostics and System diagnostics have not been selected.