Vaisala HMT130 - Manual (Page 47)

Chapter 4 ________________________________________________________ Serial Line Operation
VAISALA ________________________________________________________________________ 45
Set/Show Relay Operating Mode
Use the RMODE command to set/show relay mode, low and high limits.
Relay modes are OFF, LO_OPEN and HI_OPEN. Low and high values
specify relay operation limits for the selected quantity.
RMODE [xxxx] [lo] [hi]
where
xxxx = OFF, LO_OPEN or HI_OPEN
lo = Low limit
hi = High limit
In OFF mode: relay contacts are always open
In LO_OPEN
mode:
relay contacts are opened when the value is below
the set low limit and closed when value is above
the high limit.
In HI_OPEN
mode:
relay contacts are opened when the value is above
the set high limit and closed when value is below
the low limit.
Example:
>RMODE LO_OPEN 10 20
Relay mode : LO_OPEN
Relay low : 10
Relay high : 20
Show Relay Settings
Use the ROUT command to show the current relay settings.
ROUT
Example:
>ROUT
*** RELAY OUTPUT ***
Relay quantity : RH
RH : 22.35 %
Relay mode : LO_OPEN
Relay low : 10
Relay high : 20
Relay status : CLOSED