Vaisala DMP248 Servisní příručka stáhnout pdf (Strana 96)

APPENDIX 1 SERIAL COMMANDS __________________________________________________________

90 _____________________________________________________________________ U263EN-1.4

S Stopping the measurement output

S<cr>

Ends the RUN state; after this command all other commands can be used.

SEND Outputting a reading once

SEND <cr> in STOP state

SEND aa <cr> in POLL state

aa = address of the transmitter when more than one transmitter is

connected to a serial bus (0...99; set with command ADDR)

Outputs the current measurement readings via the serial line. The output type is

the following:

Td= -9.3 ’C PPM= 2733 T= 22.1 ’C RH= 10.4 %RH

Td= -9.3 ’C PPM= 2730 T= 22.1 ’C RH= 10.4 %RH

...

The output format can be changed with command FORM.

DSEND Outputting readings of all connected transmitters

once

DSEND <cr>

All transmitters connected to the serial bus send their addresses and current

measurement readings in an order defined by their addresses. After receiving

DSEND command a transmitter sets a delay time according to its address value

and sends the data after this delay. DSEND works also in POLL mode. With

this command, the user can for example easily find out the addresses of the

transmitters.

The output when four transmitters with addresses 4, 5, 10, 33 have been con-

nected to the serial bus:

>dsend <cr>

4 14.43 %RH

5 22.7 ’C

10 14.99 %RH

33 22.3 ’C

1 2 ... 91 92 93 94 95 96 97 98 99 100 101 ... 144 145

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Vaisala DMP248 Servisní příručka Strana 96