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DCC Info
CV 17 & 18 - Extended (Long) Address

Instructions

Entering invalid values will result in "ERR" being shown in the calculated fields.

To Determine CVs 17 & 18 for an Address

Enter a value from 1 to 9999 in the "Extended (Long) Address" field, then click the "Show CVs for Address -->" button.

To Determine and Address for CVs 17 & 18

Enter valid values for CVs 17 & 18, then click the "<-- Show Address for CVs" button.

Permissible CV values are shown in parentheses, but there are some exceptions:

  • if CV17 = 192, then CV18 may only be in the range of 1 to 255
  • if CV17 = 231, then CV18 may only be in the range of 0 to 15

NOTE!

To make the long (or short) address active in the decoder, an appropriate value must be set in CV 29.

Extended (Long) Address Calculation
CV 17 Value CV 18 Value
  (1 - 9999)





  (192 - 231)   (0 - 255)

References

  • NMRA RP 9.2.2 (July 2007)