Cv6; Cv7; Cv8 - Hornby HM DCC HM7000 Series Full Reference Manual

CV6... Vmid
Vmid specifies the voltage drive level at the middle speed step.
Tip: If CV5 (Vhigh) is reduced then it may be advisable to reduce the Vmid value to suit the new Vhigh value.
See Explanation of the Speed Step Curve Graphs.
Default Value Range
72 0-255
CV7... Manufacturer Version number
NMRA Version ID - this is unused in the HM7000 decoder series.
Various version numbers applying to different aspects of the internal firmware are held in different CV locations.
For more information see... Firmware Version Numbers
Default Value Range
254 N/A For readback test only
CV8... Manufacturers ID and RESET decoder.
Each manufacturer of DCC equipment etc has a specific ID allocated by the NMRA.
Range not specified... Default is 48 indicating "Hornby."
Default Value Range Comments
48 N/A Values assigned by NMRA
Special RESET functionality:
By writing the value 8 to this CV it is possible to reset all CVs of the decoder. In the case of sound decoders, writing the value 5 to this CV it is possible to reset all sound
volumes only.
KBW/CR Version R1.0 140323
for explanation regarding "Speed Tables".
Comments
Take me back to Top.... Page 47 of 130