Vaisala WXT520 Guide de l'utilisateur télécharger pdf (Page 81)

Chapter 7 __________________________________________________ Getting the Data Messages

VAISALA_______________________________________________________________________ 79

Automatic Mode

When automatic ASCII protocol is selected the transmitter sends data

messages at user configurable update intervals. The message structure

is same as with data query commands aR1, aR2, aR3 and aR5. You can

choose an individual update interval for each sensor, see Chapter 8,

Sensor and Data Message Settings, on page 107, sections Changing the

Settings.

Example:

0R1,Dm=027D,Sm=0.1M<cr><lf>

0R2,Ta=74.6F,Ua=14.7P,Pa=1012.9H<cr><lf>

0R3,Rc=0.10M,Rd=2380s,Ri=0.0M,Hc=0.0M,Hd=0s,

Hi=0.0M<cr><lf>

0R5,Th=76.1F,Vh=11.5N,Vs=11.5V,Vr=3.510V<cr><lf>

Example (with CRC):

0r1,Sn=0.1M,Sm=0.1M,Sx=0.1MGOG<cr><lf>

0r2,Ta=22.7C,Ua=55.5P,Pa=1004.7H@Fn<cr><lf>

0r3,Rc=0.00M,Rd=0s,Ri=0.0MIlm<cr><lf>

0r5,Th=25.0C,Vh=10.6#,Vs=10.8V,Vr=3.369VO]T<cr><lf>

Automatic Composite Data

Message (aR0)

When automatic composite data messaging is selected, the transmitter

sends composite data messages at user configurable intervals. The

message structure is the same as with the composite data query

command aR0 and contains a user configurable set of wind, pressure,

temperature, humidity, precipitation and supervisor data.

NOTE

Stop the automatic output by changing the communication protocol to

polled mode (aXU,M=P).

Polling commands aR1, aR2, aR3, and aR5 can be used also in ASCII

automatic protocol for requesting data.

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Vaisala WXT520 Guide de l'utilisateur Page 81