Vaisala DM500 - Manual (Page 99)

Chapter 16 _____________________________________________________ Serial Line Commands
VAISALA _______________________________________________________________________ 97
Select the quantity, setpoints and hysteresis and set the criteria for
enabling the function. See more about the relays from page 77.
Use the following quantity abbreviations:
TDF/TD/H2O/RH/PW/TW/A/ANTP/X/H/DT/T/P/FLOW/+TDF/
+TD/+PW
Enabling criteria keywords:
OFF
relay is never enabled (inactive)
STOP
relay is enabled when dewpoint measuring status is STOP
ERR
relay is enabled when dewpoint measuring status is ERR
OK
relay is enabled when dewpoint measuring status is OK
WAIT
relay is enabled when dewpoint measuring status is WAIT
ON
relay is always enabled
Any combination of status STOP, ERR, OK and WAIT can be chosen.
Keywords OFF and ON can be used only alone.
Example:
>rsel tdf t
Re1 Tdf above : 20 'C ? 0
Re1 Tdf below : -20 'C ? -20
Re1 Tdf hyst : 2 'C ? 2
Re1 enable: ERR ? wait ok
Re2 T above : 30 'C ? 30
Re2 T below : 20 'C ? -40
Re2 T hyst : 1 'C ? 3
Re2 enable: ON ? wait ok
ASEL Setting the Analog Outputs
Syntax: ASEL [x y z]
where
x
= quantity for the channel 1
y = quantity for the channel 2
z = quantity for the channel 3
Select the quantity and scaling and set the criteria for enabling the
function. See more about the analog outputs from page 75.