NavCom LAND-PAK Rev.N - Manual (Page 31)

Technical Reference Manual Rev. N
Blk = All; Blu = IOP w/Internal Radio ; Red = IOP & LBM ; Grn = Engine only
29
0x16 - 1PPS Configuration - 12 bytes
This is a 1 PPS (pulse per second) output pulse from the receiver that is in sync with the GPS
time and is shaped according to satellite specifications.
1. For multiple command actions, the bits in W1 may be OR’ed.
2. Default value W3 = 0x0A (0.100 seconds pulse width).
3. Default value W4 = 0x0000 (0.000 seconds delay from GPS zero second mark).
4. Default value W5 = 0x0000 (0 second delay).
Record
Usage Command - Yes
Response - No Input: Use with 0x84 output record (0x1A for logical port config)
Output:
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 16 (hex) U08 1
Length 0x000C U16 2
W1
Command Action
B1=0: Do not store in NVRAM
1: Store in NVRAM
B2=0: Do not use ACK/NAK
1: Use ACK/NAK
B3=0: Use Commanded Values
1: Use Default values
U08 1
W2
Active edge direction
B0=0: Rising front edge true
1: Falling front edge true
U08 1
W3
Pulse Width from active edge
0x01 - 0x32: 0.010 to 0.500
U08 sec 1 to 50 LSB: 10mS 1
W4 mSecond Delay; 0.000 to 0.999 S16 sec 0 to 999 LSB: 1mS 2
W5 CA Epoch Delay; 0.000 to 1 S16 msec 0 to 1023 LSB: 1mS/1023 2
W6 Reserved U08 1
CKSM Checksum U08 1
ETX 03 (hex) U08 1