Difference between revisions of "Diesel Version 5:CV 28"

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{{Infobox
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{{:CV_28}}}
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|title = NMRA CV 28
 
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|header1 = Bi-Directional Communication Configuration
 
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|label2 = Range of Values
 
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|data2 = 0-255
 
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|label3 = Default Value
 
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|data3 = 19
 
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}}
 
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== NMRA CV 28 - Bi-Directional Communication Configuration (RailCom) ==
 
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Used to configure decoder’s Bi-Directional Communication characteristics when RailCom is enabled in [[{{NAMESPACE}}:CV_29|CV 29]].
 
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<br><br/>
 
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*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 its default value).
 
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{| class="wikitable" style="text-align: center;"
 
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|-
 
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! scope="col"| Feature
 
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! scope="col"| Description
 
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! scope="col"| Default
 
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! scope="col"| Value
 
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|-
 
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! scope="row"| Channel 1
 
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| If enabled, Channel 1 will broadcast the address.
 
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| ON
 
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| 1
 
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|-
 
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! scope="row"| Channel 2
 
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| If enabled, Channel 2 will send and receive data and provide acknowledgements.
 
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| ON
 
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| 2
 
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|-
 
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|-
 
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! scope="row"| Programming Address 253
 
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| Serves as a programming lock. If this setting is disabled, programming address 253 will be locked.
 
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| ON
 
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| 16
 
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|-
 
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|}
 
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[[Category:Standard CV]]
 

Latest revision as of 22:40, 23 August 2022

CV 28
RailCom Configuration
Range of Values0-255
Accepted Values0-255
Default Value7 (Varies)

NMRA CV 28 - Bi-Directional Communication Configuration (RailCom®)

This CV is used to configure decoder’s bi-directional communication characteristics when RailCom is enabled in CV 29.

If the decoder does not support a feature contained in this table, it shall not allow the corresponding bit to be set improperly. E.G. if a decoder does not support RailCom, this CV will read 0 and will not accept any values to be programmed to it. Additionally, the decoder should not allow you to enable a feature within the table below which is not supported.

Bit Feature Description Default Value Supported by TCS
0 Channel 1 If enabled, Channel 1 will broadcast the address. ON 1 YES
1 Channel 2 If enabled, Channel 2 will send and receive data and provide acknowledgements. ON 2 YES
2 Auto Channel 1 Automatically Turn off Channel 1 ON 4 YES
3 (Reserved) Not Used N/A 8
4 Programming Address 3L If this setting is enabled, programming Long Address 3 will be allowed. OFF 16
5 (Reserved) Not Used N/A 32
6 Current Limit If enabled, the higher current limit for RailCom will be enabled OFF 64
7 Automatic Login If enabled, allows automatic login (RCN-218 or RailComPlus®) OFF 128 (Under Devel.)

Note: The table above is based upon the RailCom Specification RCN-217 and RCN-225 as of 01-16-2023 and as such is potentially subject to change. Additionally, the last column in this table "supported by TCS" is only true for current production decoders which support RailCom, and may be untrue for specific decoders and/or decoder versions (CV 7, or CV 110/CV 111) designed using an older revision of RCN-217.}

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