Diesel Version 5:CV 27: Difference between revisions

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==NMRA CV 27 - Decoder Automatic Stopping Configuration==
==NMRA CV 27 - Decoder Automatic Stopping Configuration==
Used to configure which actions will cause the decoder to automatically stop.
This CV is used to configure which conditions on the rails  will cause the decoder to automatically stop.  
Bit 0 = Enable/Disable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the
right rail.  


{| class="wikitable" style="text-align: center;"
{| class="wikitable" style="text-align: center;"
|-
|-
! scope="col"| Feature
! scope="col" |Bit
! scope="col"| Value
! scope="col" |Option
!Value
!Default
|-
|-
! scope="row"| Function 1
! scope="row" |0
| 1
|Set to Enable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the right rail
|1
|OFF
|-
|-
|-
|-
! scope="row"| Function 2
! scope="row" |1
| 2
|Set to Enable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the left rail
|2
|OFF
|-
|-
|-
|-
! scope="row"| Function 3
! scope="row" |2
| 4
|Set to Enable Auto Stop in the presence of an Signal Controlled Influence cutout signal
|4
|OFF
|-
|-
|-
|-
! scope="row"| Function 4
! scope="row" |3
| 8
|[Reserved/Not Used]
|
|N/A
|-
|-
|-
|-
! scope="row"| Function 5
! scope="row" |4
| 16
|Set to Enable Auto Stop in the presence of reverse polarity DC
|16
|OFF
|-
|-
|-
|-
! scope="row"| Function 6
! scope="row" |5
| 32
|Set to Enable Auto Stop in the presence forward polarity DC
|32
|OFF
|-
|-
|-
|-
! scope="row"| Function 7
! scope="row" |6
| 64
|[Reserved/Not Used]
|
|N/A
|-
|-
|-
|-
! scope="row"| Function 8
! scope="row" |7
| 128
|[Reserved/Not Used]
|
|N/A
|-
|-
|}
|}


“0” = Disabled  “1” = Enabled
''Note If the decoder does not support a feature contained in this table, the decoder shall not allow the corresponding bit to be set improperly (i.e. the bit should always contain it’s default value).''
Bit 1 = Enable/Disable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the left rail.
“0” = Disabled “1” = Enabled 
Bit 2 = Enable/Disable Auto Stop in the presence of an Signal Controlled Influence cutout signal.   
“0” = Disabled “1” = Enabled 
Bit 3 = Reserved for Future Use
Bit 4 = Enable/Disable Auto Stop in the presence of reverse polarity DC
“0” = Disabled “1” = Enabled 
Bit 5 = Enable/Disable Auto Stop in the presence forward polarity DC.   
“0” = Disabled “1” = Enabled
Bits 6-7 = Reserved for future use. 
 
*Note If the decoder does not support a feature contained in this table, it shall not allow the corresponding bit to be set improperly (i.e. the bit should always contain it’s default value).

Revision as of 22:52, 22 May 2021

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NMRA CV 27 - Decoder Automatic Stopping Configuration

This CV is used to configure which conditions on the rails will cause the decoder to automatically stop.

Bit Option Value Default
0 Set to Enable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the right rail 1 OFF
1 Set to Enable Auto Stop in the presence of an asymmetrical DCC signal which is more positive on the left rail 2 OFF
2 Set to Enable Auto Stop in the presence of an Signal Controlled Influence cutout signal 4 OFF
3 [Reserved/Not Used] N/A
4 Set to Enable Auto Stop in the presence of reverse polarity DC 16 OFF
5 Set to Enable Auto Stop in the presence forward polarity DC 32 OFF
6 [Reserved/Not Used] N/A
7 [Reserved/Not Used] N/A

Note If the decoder does not support a feature contained in this table, the decoder shall not allow the corresponding bit to be set improperly (i.e. the bit should always contain it’s default value).

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