Delta DVP-ES2 User Manual Page 520

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DVP-ES2/EX2/SS2/SA2/SX2 Operation Manual - Programming
3-404
2. Operand D occupies 8 consecutive word registers. The function of each device is as below:
No. Content Range Format Note
D + 0~1
Zenith 0 ~ 90 Float Horizontal=0
D + 2~3
Azimuth 0 ~ 360 Float North point=0
D + 4~5
Incidence 0 ~ 90 Float
D + 6
Converted DA value of Zenith 0 ~ 2000 Word 1LSB = 0.045
degree
D + 7
Converted DA value of Azimuth 0 ~ 2000 Word 1LSB = 0.18
degree
3. The execution time of SPA instruction costs up to 50ms, therefore we suggest users to
execute this instruction with an interval not less than 1 sec, preventing the instruction from
taking too much PLC operation time.
4. Definition of Zenith: 0° and 45°.
0° 45°
5. Definition of Azimuth:
N
90°
180°
270°
N
90°
180°
270°
6. The correct time of the local longitude: If we suppose that it is AM8:00:00 in Taipei, and the
longitude is 121.55 degrees east, then the correct time of the local longitude in Taipei should
be AM8:06:12. Please refer to API168 DTM instruction (parameter k11) for more explanation.
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