aismsg_20 Struct Reference

#include <vdm_parse.h>

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Detailed Description

AIS Message 20 - Data Link Management.

Data Fields
char	msgid
	6 bits : MessageID (20)
char	repeat
	2 bits : Repeated
unsigned long	userid
	30 bits : UserID / MMSI
char	spare1
	2 bits : Spare
int	offset1
	12 bits : Slot Offset 1
char	slots1
	4 bits : Number of Slots 1
char	timeout1
	3 bits : Timeout in Minutes 2
int	increment1
	11 bits : Slot Increment 1
int	offset2
	12 bits : Slot Offset 2
char	slots2
	4 bits : Number of Slots 2
char	timeout2
	3 bits : Timeout in Minutes 2
int	increment2
	11 bits : Slot Increment 2
int	offset3
	12 bits : Slot Offset 3
char	slots3
	4 bits : Number of Slots 3
char	timeout3
	3 bits : Timeout in Minutes 3
int	increment3
	11 bits : Slot Increment 3
int	offset4
	12 bits : Slot Offset 4
char	slots4
	4 bits : Number of Slots 4
char	timeout4
	3 bits : Timeout in Minutes 4
int	increment4
	11 bits : Slot Increment 4
char	spare2
	0-6 bits : Spare
char	num_cmds
	Number of commands received.

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Field Documentation

char aismsg_20::msgid

6 bits : MessageID (20)

char aismsg_20::repeat

2 bits : Repeated

unsigned long aismsg_20::userid

30 bits : UserID / MMSI

char aismsg_20::spare1

2 bits : Spare

int aismsg_20::offset1

12 bits : Slot Offset 1

char aismsg_20::slots1

4 bits : Number of Slots 1

char aismsg_20::timeout1

3 bits : Timeout in Minutes 2

int aismsg_20::increment1

11 bits : Slot Increment 1

int aismsg_20::offset2

12 bits : Slot Offset 2

char aismsg_20::slots2

4 bits : Number of Slots 2

char aismsg_20::timeout2

3 bits : Timeout in Minutes 2

int aismsg_20::increment2

11 bits : Slot Increment 2

int aismsg_20::offset3

12 bits : Slot Offset 3

char aismsg_20::slots3

4 bits : Number of Slots 3

char aismsg_20::timeout3

3 bits : Timeout in Minutes 3

int aismsg_20::increment3

11 bits : Slot Increment 3

int aismsg_20::offset4

12 bits : Slot Offset 4

char aismsg_20::slots4

4 bits : Number of Slots 4

char aismsg_20::timeout4

3 bits : Timeout in Minutes 4

int aismsg_20::increment4

11 bits : Slot Increment 4

char aismsg_20::spare2

0-6 bits : Spare

char aismsg_20::num_cmds

Number of commands received.

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The documentation for this struct was generated from the following file:

• /Users/brianlane/projs/aisparser/c/src/vdm_parse.h

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