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MGL Avionics V16, User Manual

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Table of Contents

MGL Avionics V16 transceiver communications protocols.........................................................3

Version....................................................................................................................................3
The legal stuff..........................................................................................................................3

General........................................................................................................................................3
Frequencies.................................................................................................................................4

RS232 protocol...................................................................................................................5
General message format:...................................................................................................5
Commands:........................................................................................................................5
Format of Acknowledge message (sent by transceiver)....................................................8
Format of status message (sent by transceiver every 100mS unless setup menu is 
active).................................................................................................................................8
Format of the Setup menu message (sent every 200mS if setup menu active)................9
Technical string.................................................................................................................10

CAN bus protocol......................................................................................................................10

Messages from the V16........................................................................................................10

Status message................................................................................................................10
Menu item message..........................................................................................................11

Technical string.....................................................................................................................12

Messages to the V16........................................................................................................12

Summary of Contents for V16

Page 1: ...MGL Avionics V16 Aviation band transceiver ICD V1 ...

Page 2: ...Commands 5 Format of Acknowledge message sent by transceiver 8 Format of status message sent by transceiver every 100mS unless setup menu is active 8 Format of the Setup menu message sent every 200mS if setup menu active 9 Technical string 10 CAN bus protocol 10 Messages from the V16 10 Status message 10 Menu item message 11 Technical string 12 Messages to the V16 12 ...

Page 3: ...itions are not negotiable and will not be waived Should the entity not accept these conditions MGL Avionics does not grant the right to use any of this information in any way Usage of this information constitutes acceptance of a legally binding contract in the spirit of information placed in the public domain for the common good It follows that any action against MGL Avionics CC in this context is...

Page 4: ...are transmitted as 4 byte unsigned integer values in the RS232 protocol and 3 byte integer values in the CAN bus protocol Frequency values consist of MHZ and 100 s of Khz plus a channel number within the 100Khz band Values N 0 15 give the channel where channels 1 2 3 5 6 7 9 10 11 13 14 15 are 8 33Khz channels and 0 4 8 12 are the 25Khz spaced channels Using published frequencies 8 33Khz channels ...

Page 5: ...y Note This protocol is based on the protocol used by the MGL Avionics V6 and V10 transceivers Note that the commands and status messages are not all identical Example RS232 message to set standby frequency values are in HEX 02 05 01 18 F0 01 00 E8 The value E8 is the checksum and the frequency requested is 127 000 MHZ 0x1F018 Commands 00 Set active frequency D0 Frequency binary LSB first Sets fre...

Page 6: ...ero Sends acknowledge when message received OK 04 Set RX and Intercom volume 00 Volume value 0 31 lowest to highest Sends acknowledge when message received OK 05 Increase squelch 00 Don t care data value recommend to set to zero Sends acknowledge when message received OK 06 Decrease squelch 00 Don t care data value recommend to set to zero Sends acknowledge when message received OK 07 Set squelch ...

Page 7: ... 2 Menu up previous item wraps to end of menu 3 Menu down next item wraps to start of menu 4 Change value of current menu item UP ON YES or flip state 5 Change value of current menu item DOWN OFF NO or flip state 6 Technical setup de activate power on state 7 Technical setup activate If the V16 is placed in setup menu mode it will automatically cancel this mode if no activity within 60 seconds rel...

Page 8: ...age received OK 29 Increase RX volume 3dB 00 Don t care data value recommend to set to zero Sends acknowledge when message received OK 30 Decrease RX volume 3dB 00 Don t care data value recommend to set to zero Sends acknowledge when message received OK 31 Set RX volume nn Volume value 0 31 lowest to highest Sends acknowledge when message received OK Format of Acknowledge message sent by transceiv...

Page 9: ...onnector nn RX signal level on active frequency in dBm relative to 140dbm nn RX signal level on standby frequency in dBm relative to 140dbm Note Only valid is scanning is active nn TX modulation level 0 63 63 equals about 70 modulation index nn Temperature at TX power stage in degrees C relative to 50 degrees nn Supply voltage in 10th of a volt relative to 5 0 volts CKS Checksum Format of the Setu...

Page 10: ...acters of string CKS Checksum CAN bus protocol The CAN bus protocol is a duplication of the information on the RS232 protocol packaged into suitable CAN message packets Each packet may contain up to 8 bytes of data CAN packets are identified by address in a CAN network The address scheme used conforms to the 11 bit message ID standard CAN protocol as well as to the scheme used with MGL Avionics CA...

Page 11: ...ulation index ID 0x4n0 Status packet 3 length 6 bytes Byte 0 Message type 2 Byte 1 3 Standby frequency 3 bytes LSB first Byte 4 Temperature Byte 5 Voltage Menu item message The menu item message is sent every 200mS as a block of packets in order alternating with the status messages The menu message is sent only if the menu is active For details please see the description in the RS232 protocol rela...

Page 12: ... Up to 6 characters of string ID 0x4n2 Subsequent technical text packet s length 2 to 8 bytes Byte 0 Message type 1 9 maximum 63 characters in string 7 per packet Byte 1 7 Remaining characters of string to a maximum of 7 characters Messages to the V16 V16 controllers use the assigned CAN ID 0x48n where n is a message type identifier Multiple control heads will use the SAME ID ID 0x480 Length varia...

Page 13: ...ng state active inactive 17 2 PTT activation Bit 0 PTT Pilot Bit 1 PTT PAX 1 active Please see RS232 protocol description on this for details 18 2 Setup menu functions Please see RS232 protocol description for details on this 19 1 2 6 Beep control Activates a beep tone sequencer for headset output If length 1 single beep 40mS if length 2 if data 0 then stop any beep active If length 6 First data b...

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