XT units
Unit of external temperature
XP val
Numeric value of computed external thermal power.
XP units
Unit of external thermal power.
NP val
Numeric value of computed net thermal power.
NP units
Unit of net thermal power.
NE val
Numeric value of computed net thermal energy.
NE units
Unit of net thermal energy.
<ID>
Optional
meter identifier. Value between 00 to 99
#
nn
Err#
nn
is the number of errors detected by the instrument.
error mesg.
Error message as appears in the alphanumeric line of display.
<sp>
ASCII
space
character.
<cr> <lf>
ASCII carriage return and line-feed sequence.
Note : Either QV, QN or QM is transmitted at a time. Similarly for TV, TN and TM.
For all transmitted parameters, the user selected unit is used.
After all parameters <cr><lf> is send instead of <sp><sp>
Example -
:QM1234.56 <sp> <sp>kg/hr <sp> <sp>
:TM1000.00<sp><sp>kg<sp><sp>
:PR1.00<sp><sp>atm<sp><sp>
:TR100.0<sp><sp>Deg.C<CR><lf>
:HE# 1 Err# <sp> <sp> LOW FLOW <cr> <lf>
Note that the actual number of characters in each format is not fixed and depends on the contents of
Measured
Value, unit
and
error mesg.
fields. The user system may use the 2 space characters and CR, LF characters as
delimiters for fields.
2.4 RS-485 OUTPUT (FOR AGA NATURAL GAS METER)
RS485 option given for AGA supported software is same except for some transmitted values.These values are as
follows :
:CF<
CFval
><sp><sp><
CFunits
><sp><sp>
:TH<
THval
><sp><sp><
THunits
><sp><sp>
:HE# nn Err#<sp><sp>
:m<
mesg
m><cr><lf>
If there are Fatal Errors detected by 5090(I) then measurement is not made and transmitted :
:
FEFATAL.ERROR
<cr><lf>
:HE# nn Err#<sp><sp>
:<mesg m><cr><lf>
where
CFval
Numeric value of computed compressibility factor
CFunit
Unit of computed compressibility factor
THval
Numeric value of computed thermal heat value
THunit
Unit of the computed thermal heat value
#
nn
Err#
nn
is the number of errors detected by the instrument.
error mesg.
Error message as appears in the alphanumeric line of display.
<sp>
ASCII
space
character.
<cr> <lf>
ASCII carriage return and line-feed sequence.
Note : Either QV, QN or QM is transmitted at a time. Similarly for TV, TN and TM.
For all transmitted parameters, the user selected unit is used.
Only those parameters selcted in the display cycle are transmitted.
After all parameters, <cr><lf> is sent instead of <sp><sp>
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