NavCom LAND-PAK Rev.N - Manual (Page 94)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 92
Request
Record
Usage Command - Yes
Response - No Input: request IOP MMC status (data logging memory);
Output: see table below
Ref Message Field Description Data Type Units Range Scale
Byte
Count
STX 02 (hex) U08 1
PRA1 99 (hex) U08 1
PRA2 66 (hex) U08 1
ID 7e(hex) U08 1
Length 0xXXXX U16 2
W1 SubID 0x00 U08 1
W2 0x00 (request) U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1
Response
Record
Usage Command - No
Response - Yes Input: see table above;
Output: reports IOP data logging memory status
Ref Message Field Description Data Type Units Range Scale
Byte
Count
STX 02 (hex) U08 1
PRA1 99 (hex) U08 1
PRA2 66 (hex) U08 1
ID 7e(hex) U08 1
Length 0xXXXX U16 2
W1 Sub ID 0x00 U08 1
W2 0xff (response) U08 1
W3
Date
B15-B9: Years since 1980
B8-B5: Month
B4:B0: Day of Month
U16
years
month
day
0-65535
1-12
1-31
n+1980
2
W4
Time
B15-B11: Hours
B10:B5: Minutes
B4-B0: Seconds
U16
hrs
min
sec
0-23
0-59
0-29
n/2
2
W5
Status Bits
B7: Memory Mount Failure
B6: Memory Mounted
B5: File Open For Write
B4: File Open For Read
B3-B1: Reserved
B0: MMC Hardware Available
U08 1
W6 Reserved U08 1
W7
Memory Size (bytes, including
used and unused storage)
U32 4
W8 Memory Free Space (bytes) U32 4
CKSM Checksum U08 1
ETX 03 (hex) U08 1