NavCom LAND-PAK Rev.N - Manual (Page 108)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only 106
0x0a – Close File
Use this command to close a file that was open for logging (0x7e.0x07) or a file that was
open for reading (0x7e.0x08). In either case, after closing the file, the file handle is no
longer valid and is rendered unusable.
Request
Record
Usage Command - Yes
Response - No Input: Close file from 0x7e.0x07 or 0x7e.0x08 request;
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 Sub ID 0x0a U08 1
W2 0x00 (request) U08 1
W3 Reserved U16 2
W4
Control
B1=1: Close file open for reading
B2=1: Close file open for writing U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1
Response
Record
Usage Command - No
Response - Yes Input: see table above;
Output: reports the success or failure of close file request
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 0x0a U08 1
W2 0xff (response) U08 1
W3 Reserved U16 2
W4
Control (Copied from Request Message)
B1=1: Close file open for reading
B2=1: Close file open for writing U08 1
W5
Result
0x00: File successfully closed
B0=1: No file open for reading
B1=1: Error trying to close file open for reading
B2=1: No file open for writing
B3=1: Error trying to close file open for writing
B7=1: Memory Mount Failure
U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1