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_ISUDMDI_000005 - Define Number Ranges for Logical Numbers of Registers

_ISUDMDI_000005 - Define Number Ranges for Logical Numbers of Registers

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In this activity you maintain the number range object logical register number. This consecutive number is automatically assigned to all device registers upon installation of devices in a device location. The number is not displayed on the screen and it only used in the program.

The logical register number identifies the position of a device in a device location and therefore in the installation structure as well. In replacement of devices, the new registers adopt the logical register numbers of the corresponding registers of the removed device. If the devices to be replaced do not have the same number of registers, new logical register numbers are added or the logical register numbers that are no longer required are deleted.

If you install devices in mass runs (via direct input, for example), you should define a number range for each run.

If you do not install devices in mass runs, it is sufficient to define a single number range for the logical register number.

Adjust the provided number ranges to your requirements and, if necessary, add new number ranges to the selected number range object.

  1. Choose Change intervals.
  2. To extend the number ranges, choose Insert interval.
  3. Maintain the interval values (from-number, to-number) for the selected number range interval. Avoid external number assignment (do not select the External indicator).
  4. Save your entries
  • The number range object logical register number only permits numerical interval limits.
  • Because the logical register number is used internally, you should not create number ranges via external number assignment.





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