Vaisala WXT531 - ASCII Protocol; Abbreviations and Units

User’s Guide ______________________________________________________________________
88 __________________________________________________________________ M211840EN-C
ASCII Protocol
This section lists the data commands and data message formats for the
ASCII communication protocols.
Abbreviations and Units
Table 18 Abbreviations and Units
Abbreviation Name Unit
Status
1
1. The letters in the status field indicate the Unit, the # character indicates invalid data.
Sn Wind speed minimum m/s, km/h, mph, knots #,M, K, S, N
Sm Wind speed average m/s, km/h, mph, knots #,M, K, S, N
Sx Wind speed maximum m/s, km/h, mph, knots #,M, K, S, N
Dn Wind direction minimum deg #, D
Dm Wind direction average deg #, D
Dx Wind direction maximum deg #, D
Pa Air pressure hPa, Pa, bar, mmHg, inHg #, H, P, B, M, I
Ta Air temperature °C, °F #, C, F
Tp Internal temperature °C, °F #, C, F
Ua Relative humidity %RH #, P
Rc Rain accumulation mm, in #, M, I
Rd Rain duration s #, S
Ri Rain intensity mm/h, in/h #, M, I
Rp Rain peak intensity mm/h, in/h #, M, I
Hc Hail accumulation
hits/cm
2
, hits/in
2
, hits
#, M, I, H
Hd Hail duration s #, S
Hi Hail intensity
hits/cm
2
h, hits/in
2
h, hits/h
#, M, I, H
Hp Hail peak intensity
hits/cm
2
h, hits/in
2
h, hits/h
#, M, I, H
Th Heating temperature °C, °F #, C, F
Vh Heating voltage V
#, N, V, W, F
2
2. For heating # = heating option is not available (has not been ordered).
N = heating option is available but have been disabled by user or the heating temperature is over the
high control limit.
V = heating is on at 50% duty cycle and the heating temperature is between the high and middle
control limits.
W = heating is on at 100% duty cycle and the heating temperature is between the low and middle
control limits.
F = heating is on at 50% duty cycle and the heating temperature is below the low control limit.
Vs Supply voltage V V
Vr 3.5 V ref. voltage V V
Id Information field alphanumeric