Appendix A. CR23X/CR10X Programs
P15 parameters 4, 5, and 10 are somewhat variable. When using a CR23X,
parameter 4 can be set to 05, 06 or 07 depending on what control ports are
used. A CR10X can use control ports 1 through 6. Wiring of the
communication cable depends on the selection for parameter 4. With a CR23X
the GPS transmit wire is connected to the control port selected in parameter 4.
With a CR10X, the GPS transmit wire is connected to the control port 1 higher
then the control port listed in parameter 4.
P15 is executed when the PPS signal drives control port 8 high. P15 will wait
until one of three conditions is met: the time-out listed in parameter 9 has
expired, the maximum number of characters in parameter 8 have been read, or
the termination character listed in parameter 7 has been read.
P15 parameter 10 is the first input location you wish to store GPS data in.
Fifteen sequential input locations will be used to store time and position.
Example A-1. Program Instruction 15 (P15) for CR23X
Port Serial I/O (P15)
1: 1
Reps
2: 61
-- ASCII/RS-232, 1200 Baud, decimal delimiter
3: 1
Delay (units = 0.01 sec)
4: 5
Control
Ports
5: 1
Output Loc [ Bulk ]
6: 0
No. of Locs to Send
7: 42
Termination
Character
8: 100
Maximum
Characters
9: 80
Time Out Delay (units = 0.01 sec)
10: 1
Loc
[
Raw_time1
]
11: 1
Mult
12: 0
Offset
Example A-2. Program Instruction 15 (P15) for CR10X
8: Port Serial I/O (P15)
1: 1
Reps
2: 61
ASCII/RS-232, 1200 Baud, decimal delimiter
3: 1
Delay (units = 0.01 sec)
4: 1
First
Control
Port
5: 1
Output Loc [ Bulk ]
6: 0
No. of Locs to Send
7: 42
Termination
Character
8: 100
Maximum
Characters
9: 80
Time Out Delay (units = 0.01 sec)
10: 1
Loc
[
Raw_time1
]
11: 1.0
Mult
12: 0.0
Offset
Communication cable wiring for:
NOTE
CR23X/Example A-1 — PPS to C8, GPS transmit to C5.
CR10X/Example A-2 — PPS to C8, GPS transmit to C2.
A-2
