VAL Avionics NAV 2000 Manual do Operador descarregar pdf (Página 28)

V A L A V I O N I C S L T D

N A V 2 0 0 0 N A V I G A T I O N S Y S T E M

I N S T A L L A T I O N A N D O P E R A T O R ’ S M A N U A L

Pre-Release Issue Page 28 of 29

Sept. 2013

COMMUNICATIONS ERROR

This message is used to indicate a communication error.

Message format:

“V”..................... Message class. This is a VHF NAV message.

“27”.................... Message identifier.

e ......................... Error code: (ASCII)

“0” = input message checksum error.

“1” = unknown message.

“2” = error or mismatch in message data.

Example message:

$PMRRV271<chksm><CR><LF>

Received an unknown message.

NAV RECEIVER STATUS

This message is used to output the current status of the NAV receiver. It will be output upon

request or whenever the status changes.

Message format:

“V”..................... Message class. This is a VHF NAV message

“28”.................... Message identifier

mk ...................... Standby NAV frequency: m = MHz, where m + 30h = desired MHz

frequency in the range of 108 to 117 MHz. k= (desired frequency / 25

kHz) + 30h, with desired frequency in range of 000 to 975 kHz in 50

kHz steps.

s.......................... Status: “N” = Normal mode, “M” = Monitor mode

Example message:

$PMRRV28E4?PM<chksm><CR><LF>

Active NAV frequency is 117.100 MHz, Standby NAV frequency is 111.800 MHz, receiver is in

monitor mode.

NAV M

ICROCONTROLLER

OFTWARE

ERSION

This message is used to output the version string for the NAV microcontroller software.

Message format:

“V”..................... Message class. This is a VHF NAV message.

“30”.................... Message identifier.

vvvv ................... Software version in ASCII

e ......................... Engineering version flag:

“R” = Released version.

“E” = Engineering version.

Example message:

$PMRRV300103E<chksm><CR><LF>

NAV Microcontroller software is version 1.03. It is an engineering version.

RANSCEIVER

TATUS

This message outputs the result of a specific system test.

Message format:

1 2 ... 23 24 25 26 27 28 29

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