CV 189 - Revision history

BobbyL: /* NMRA CV 189 - Dynamic Brake Min. Speed */

2025-08-05T18:29:14Z

NMRA CV 189 - Dynamic Brake Min. Speed

← Older revision		Revision as of 18:29, 5 August 2025
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	{{Infobox		{{Infobox
	\|title = NMRA CV 23		\|title = NMRA CV 189
	\|header1 = ~~Consist Acceleration Adjustment~~		\|header1 = Dynamic Brake Min. Speed
	\|label2 = Range of Values		\|label2 = Range of Values
	\|data2 = 0-~~255~~		\|data2 = 0-126
	\|label3 = Default Value		\|label3 = Default Value
	\|data3 = 0		\|data3 = 10
	}}		}}

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	<br>		<br>
	''' See Also '''		''' See Also '''

	*[[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]]		*[[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]]
	*[[{{NAMESPACE}}:CV_190\|Dynamic Brake Deceleration Rate]]		*[[{{NAMESPACE}}:CV_190\|Dynamic Brake Deceleration Rate]]

BobbyL: /* NMRA CV 189 - Dynamic Brake Min. Speed */

2025-08-05T18:27:45Z

NMRA CV 189 - Dynamic Brake Min. Speed

← Older revision		Revision as of 18:27, 5 August 2025
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	==NMRA CV 189 - Dynamic Brake Min. Speed==		==NMRA CV 189 - Dynamic Brake Min. Speed==
	Since Dynamic Brakes lose braking power at low speed this CV can be used to simulate that. The locomotive won't go below the speed (0-126) in this CV when the dynamic brakes are applied.		Since [[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]] lose braking power at low speed this CV can be used to simulate that. The locomotive won't go below the speed (0-126) in this CV when the dynamic brakes are applied.
	<br><br>		<br>
			<br>

	''' See Also '''		''' See Also '''

	*[[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]]		*[[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]]
	*[[{{NAMESPACE}}:CV_190\|Dynamic Brake Deceleration Rate]]		*[[{{NAMESPACE}}:CV_190\|Dynamic Brake Deceleration Rate]]
	*[[{{NAMESPACE}}:CV_191\|Dynamic Brake Speed Decrement]]		*[[{{NAMESPACE}}:CV_191\|Dynamic Brake Speed Decrement]]

	~~<br />~~		[[Category:Dynamic_Brakes]]

BobbyL: /* NMRA CV189 - Dynamic Brake Min. Speed */

2025-08-05T18:26:55Z

NMRA CV189 - Dynamic Brake Min. Speed

← Older revision		Revision as of 18:26, 5 August 2025
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	}}		}}

	== NMRA CV 23 - ~~Consist Acceleration Adjustment~~ ==		==NMRA CV 189 - Dynamic Brake Min. Speed==
	~~This~~ CV ~~contains additional acceleration rate information that is to~~ be ~~added~~ to ~~or subtracted from~~ the ~~base value contained~~ in ~~Configuration Variable #3. This~~ CV ~~will only affect the momentum~~ when ~~CV19 is a non-0 value, meaning~~ the ~~decoder is configured for advanced consisting~~. ~~The total momentum value can be calculated using the following formula:~~		Since Dynamic Brakes lose braking power at low speed this CV can be used to simulate that. The locomotive won't go below the speed (0-126) in this CV when the dynamic brakes are applied.
	<br><br/>		<br><br>
	([~~the contents of CV#23~~] ~~multiplied by~~ [~~0.896~~]~~) divided by (number of speed steps in use)~~
	~~<br><br/>~~
	This is a 7 bit value (bits 0-6) with bit 7 being reserved for a sign bit (0-add, 1-subtract). The product of this formula is added to the value in CV 3. In case of overflow (CV23 + CV3 > 255), the maximum acceleration rate shall be used (255). In case of underflow (CV3 + (-)CV23 < 0) no acceleration shall be used (0). The expected use of this configuration is for changing momentum to simulate differing train lengths/loads. Consisted/MU's tend to pull/push more cars, and therefore can have simulated higher loads by using this configuration.		''' See Also '''
	~~<br>~~<br/>
			*[[{{NAMESPACE}}:Dynamic_Brakes\|Dynamic Brakes]]
			*[[{{NAMESPACE}}:CV_190\|Dynamic Brake Deceleration Rate]]
			*[[{{NAMESPACE}}:CV_191\|Dynamic Brake Speed Decrement]]

			<br />

BobbyL: Created page with "{{Infobox |title = NMRA CV 23 |header1 = Consist Acceleration Adjustment |label2 = Range of Values |data2 = 0-255 |label3 = Default Value |data3 = 0 }} == NMRA CV 23 - Consi..."

2025-08-05T18:22:56Z

Created page with "{{Infobox |title = NMRA CV 23 |header1 = Consist Acceleration Adjustment |label2 = Range of Values |data2 = 0-255 |label3 = Default Value |data3 = 0 }} == NMRA CV 23 - Consi..."

New page

{{Infobox
|title = NMRA CV 23
|header1 = Consist Acceleration Adjustment
|label2 = Range of Values
|data2 = 0-255
|label3 = Default Value
|data3 = 0
}}

== NMRA CV 23 - Consist Acceleration Adjustment ==
This CV contains additional acceleration rate information that is to be added to or subtracted from the base value contained in Configuration Variable #3. This CV will only affect the momentum when CV19 is a non-0 value, meaning the decoder is configured for advanced consisting. The total momentum value can be calculated using the following formula:
 
([the contents of CV#23] multiplied by [0.896]) divided by (number of speed steps in use)
 
This is a 7 bit value (bits 0-6) with bit 7 being reserved for a sign bit (0-add, 1-subtract). The product of this formula is added to the value in CV 3. In case of overflow (CV23 + CV3 > 255), the maximum acceleration rate shall be used (255). In case of underflow (CV3 + (-)CV23 < 0) no acceleration shall be used (0). The expected use of this configuration is for changing momentum to simulate differing train lengths/loads. Consisted/MU's tend to pull/push more cars, and therefore can have simulated higher loads by using this configuration.