Adding/Deleting a Module in a Local Rack
Original instructions
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Adding a Module in a Local Rack
NOTICE
UNINTENDED EQUIPMENT OPERATION
  • Verify that the margin between watchdog timers and task execution times is great enough to handle the increased processing time required to support adding a new module.
  • Confirm that the watchdog values of all modules in local and extended racks are greater than the time needed to perform CCOTF.
    Example:
    • For a MAST task with a watchdog value of 60 ms, the module watchdog is 256 ms.
    • For a MAST task with a watchdog value of 20 ms, the module watchdog is 32 ms.
  • Anticipate performance decrease due to the increased traffic if you add a new module to the system.
Failure to follow these instructions can result in equipment damage.
NOTE: Use an M580 CPU version 2.00 (or later) to manage local I/O CCOTF features.
NOTE: During a CCOTF transaction on the local rack, MAST / FAST / AUX / IO Event section / Timer Event section are performed at the end of the CCOTF transaction. If several IO Timer event sections occur during a CCOTF transaction, the sections are performed once only at the end of the CCOTF transaction.
This describes the process of adding a module to a main or extended local rack:
Deleting a Module from a Local Rack
WARNING
POSSIBLE UNEXPECTED EQUIPMENT BEHAVIOR
  • Check that deleting the module does or does not have impact on the process or on the application execution.
  • For input modules, consider that the input values in the memory image may be forced.
  • Remove the terminal block or connector from the module before deleting a module.
  • Account for overhead time linked with the CCOTF process for watchdog management. (See the previous Notice.)
Failure to follow these instructions can result in death, serious injury, or equipment damage.
WARNING
UNINTENDED EQUIPMENT OPERATION
  • Do not use a DDDT that is associated with a module that you remove from a local or remote rack.
  • When you remove the module, the associated DDDT becomes unmanaged and cannot be used in the application.
Failure to follow these instructions can result in death, serious injury, or equipment damage.
This describes the process of deleting a module from a main or extended local rack: