Checking The Serial Port Network Operation; Stop Mode - Vaisala HMP230 SERIES Operating Manual

HMP230 SERIES
Appendix 4: Digital current loop module
4.

CHECKING THE SERIAL PORT NETWORK OPERATION

Normally measurement readings are asked when the transmitter is in POLL
mode; then the command must include the address of the transmitter. If the
settings need to be changed, the transmitter is switched to STOP mode with
command OPEN; commands can then be given without address. When the line
to the transmitter is closed, it returns to POLL mode.

STOP mode

Open the line to the transmitter:
Transmitter no. 22 is now temporarily set to STOP mode; it accepts com-
mands without address until CLOSE command is given. Individual settings
can now be easily modified. Do not open more than one line at a time.
Use command ? to find out the settings of the active transmitter:
>? <cr>
HMP 230 / 3.01
CPU serial nr :
Keyboard type :
Address
Output units :
Baud P D S
Serial mode
Output intrv. :
Mtim
Pressure
Analog outputs
Ch1
Ch2
Ch1 ( RH ) lo
Ch1 ( RH ) hi
Ch2 ( T
Ch2 ( T
Transducer
PRB serial nr :
PRB cal. date :
When the necessary settings have been made, close the line to transmitters (the
command closes all open lines):
CLOSE command is always given without address. If no line is open, there
will be no response to the CLOSE commands.
122
open 22<cr>
HMP 22 line opened for operator commands
S4330008
1
: 0
metric
: 4800 E 7 1 FDX
: STOP
0 s
: 32
: 1013.25
0.00 ... 20.00 mA
0.00 ... 20.00 mA
0.000 %RH
100.000 %RH
) lo -40.000 'C
) hi 180.000 'C
:
9702
970117
>close
line closed
U116en-2.2