Delta DVP-EX2 - Page 575

DVP-ES2/EX2/EC5/SS2/SA2/SX2/SE&TP Operation Manual - Programming
3-454
No.
Content
Range
Format
Note
invalid
D + 10
Day
1 ~ 31
Word
D + 11
Month
1 ~ 12
Word
D + 12
Year
2000 ~
Word
D + 13~14
Latitude
-90 ~ 90
Float
Unit: ± dd.ddddd
D + 15~16
Longitude
-180 ~ 180
Float
Unit: ± ddd.ddddd
4. When applying GPS instruction, COM1 has to be applied in Master mode, i.e. M1312 has to be
enabled to sending request. In addition, M1314 = ON indicates receiving completed. M1315
= ON indicates receiving error. (D1250 = K1, receiving time-out; D1250 = K2, checksum
error)
5. Associated M flags and special D registers:
No.
Function
M1312
COM1 (RS-232) sending request
M1313
COM1 (RS-232) ready for data receiving
M1314
COM1 (RS-232) data receiving completed
M1315
COM1 (RS-232) data receiving error
M1138
Retaining communication setting of COM1
D1036
COM1 (RS-232) Communication protocol
D1249
COM1 (RS-232) data receiving time-out setting. (Suggested value: >1s)
D1250
COM1 (RS-232) communication error code
6. Before applying the received GPS data, please check the value in D+9. If D+9 = 0, the GPS
data is invalid.
7. If data receiving error occurs, the previous data in D registers will not be cleared, i.e. the
previous received data remains intact.
Program example: Sentence identifier: $GPGGA
1. Set COM1communication protocol first
M1002
MOV H81
D1036
SET
M1138
MOV K2000 D1249
Set communication protocol
as 9600,8,N,1
Retain communication setting
Set receiving time-out as 2s
2. Then enable M0 to execute GPS instruction with sentence identifier $GPGGA
M0
GPS K0
D0
SET
M1312
M0
M1314
M1315
Y0
Y1