Settings fields - WXT530

WXT530 Series User Guide

Document code
M211840EN
Revision
F
Language
English (United States)
Product
WXT530
Document type
User guide
Parameter Description
a Device address
XU Device settings command in ASCII and NMEA 0183
XXU Device settings command in SDI-12
[A] Address: 0 (default) … 9, A … Z, a … z
[M] Communication protocol:
A = ASCII, automatic
a = ASCII, automatic with CRC
P = ASCII, polled
p = ASCII, polled, with CRC
N = NMEA 0183 v3.0, automatic
Q = NMEA 0183 v3.0, query (= polled)
M = Modbus RTU
S = SDI-12 v1.3
R = SDI-12 v1.3 continuous measurement
[T] Test parameter (for testing use only)
[C] Serial interface:
1 = SDI-12
2 = RS-232
3 = RS-485
4 = RS-422
[I] Automatic repeat interval for Composite data message: 1 … 3600 s, 0 = no automatic repeat
[B] Baud rate: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
[D] Data bits: 7/8
[P] Parity:
O = Odd
E = Even
N = None
[S] Stop bits: 1/2
[L] RS-485 line delay: 0 … 10000 ms. Defines the delay between the last character of the query and the first character of the response message from the transmitter. During the delay, the transmitter is disabled. Effective in ASCII, polled and NMEA 0183 query protocols. Effective when RS-485 is selected (C = 3).
[N] Name of the device: WXT530 (read-only)
[V] Software version: for example, 1.00 (read-only)
[H] Parameter locking
0 = Parameters can be changed
1 = Parameters locked. Vaisala recommends that you set this parameter to 1 after you have configuration. This prevents accidental changes, for instance, in RS- 485 use when there is interference.
[O] 1 Modbus address: 1 = default, available address IDs 1 … 247.
<cr><lf> Response terminator

There are two SDI-12 modes available for providing the functionality of the SDI-12 v1.3 standard.

The lowest power consumption is achieved with the Native SDI-12 mode (aXU,M=S), as it makes measurements and outputs data only on request.

In the continuous SDI-12 mode (aXU,M=R) internal measurements are made at a user-configurable update interval. The data is outputted on request.

Example (ASCII and NMEA 0183, device address 0):
0XU<cr><lf>
0XU,A=0,M=P,T=0,C=2,I=0,B=19200,D=8,P=N,S=1,L=25,
N=WXT530,V=1.0,H=0,O=1<cr><lf>
Example (SDI-12, device address 0):
0XXU!0XXU,A=0,M=S,T=0,C=1,I=0,B=1200,D=7,P=E,S=1,L=25,
N=WXT530,V=1.0,H=0,O=1<cr><lf>
1 The letter O