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Table 1 lists the requirements for using an ultrasonic sensor.
RAINFALL ACCUMULATOR (REGISTER 215)
Due to the restrictions of how rainfall is processed in SunSpec the PVmet-500maintains a secondary rainfall accumulation counter.
#
Name
215
1
Rainfall Accumulation
This register continually accrues rainfall and does not reset on reading as does the Sunpsec register for rainfall. Rainfall is reported in
10ths of a millimeter. The register will accumulate up to a maximum accumulation of 6553.5 mm (reported as 65535). The register
will roll over back to zero on the 6535.6 mm of rain. The register will also return to zero if power is interrupted. This register can be
written to at any time. It is recommended that the host system clears the register once a day once the daily total has been recorded.
Table 10: Ultrasonic sensor requirements
Power:
Interface:
Protocol:
Baud Rate:
Data Bits:
Stop Bits:
Type
Units
Scale Factor
uint16
mm
0.01
10 -30VDC
RS-232
NMEA0183
4800
8
Parity:
None
1
Contents
R/W
0
R/W
- 22 -
Description
Accumulation in mm
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