Setting fields - WXT530

WXT530 Series User Guide

Document code
English (United States)
Document type
User guide
Parameter Description
[R] Parameter selection: This field consists of 16 bits defining the PTU parameters included in the data messages. The bit value 0 disables and the bit value 1 enables the parameter.

Bits 1-8 determine the parameters included in the message obtained with the following commands:

  • ASCII: aR2 and ar2
  • NMEA 0183: $--WIQ,XDR*hh
  • SDI-12: aM2, aMC2, aC, and aCC2
  • SDI-12 continuous: aR2 and aRC2
Table 1. PTU parameters bits 1-8
Bit Description
1st bit (most left) Pa Air pressure
2nd bit Ta Air temperature
3rd bit Tp Internal temperature 1
4th bit Ua Air humidity
5th bit Spare
6th bit Spare
7th bit Spare
8th bit Spare
& Delimiter

Bits 9-16 determine the PTU parameters included in the composite data message obtained with the following commands:

  • ASCII: aR0 and ar0
  • NMEA 0183:aR0, ar0
  • SDI-12: aM, aMC, aC, and aCC
  • SDI-12 continuous: aR and aRC
Table 2. PTU parameters bits 9-16
Bit Description
9th bit Pa Air pressure
10th bit Ta Air temperature
11th bit Tp Internal temperature1
12th bit Ua Air humidity
13th bit Spare
14th bit Spare
15th bit Spare
16th bit Spare
Parameter Description
[I] Update interval: 1 … 3600 seconds
[P] Pressure unit: H = hPa, P = Pascal, B = bar, M = mmHg, I = inHg
[T] Temperature unit: C = Celsius, F = Fahrenheit
[N] NMEA formatter:

T = XDR (transducer syntax)

D =MDA Defines whether the wind message is sent in XDR or MDA format.

<cr><lf> Response terminator
1 Tp temperature value is used in pressure calculation, it does not express the air temperature.