Relay output configuration - HMT130

HMT130 User Guide

Document code
M211280EN
Revision
D
Language
English (United States)
Product
HMT130
Document type
User guide
Table 1. RSEL command
Syntax Description
rsel [q]<cr>
where
q
Parameter to define relay state. 1
After you have defined the measurement parameters with the calcs command, use the rsel command to show or set the relay parameter. Valid parameters are RH, T, TD, TDF, A, X, H, TW, PWS, and PW.
Example:
>RSEL T
Relay quantity      : T
>
Table 2. RMODE command
Syntax Description
rmode [xxxx] [lo] [hi]<cr>
where
xxxx
OFF, LO_OPEN or HI_OPEN
lo
Low limit
hi
High limit

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 measurement parameter.

  • 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
>
Table 3. ROUT command
Syntax Description
rout<cr> Use the rout command to show the current relay settings.
Example:
>ROUT
*** RELAY OUTPUT ***
Relay quantity     : RH
RH                 : 22.35 %
Relay mode         : LO_OPEN
Relay low          : 10
Relay high         : 20
Relay status       : CLOSED
>
1 Measurement parameters are referred to as 'quantities' in the transmitter's software.