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EC9852 SULFUR COMPOUND ANALYZER OPERATION MANUAL
4.4.5.1 Bavarian Protocol Command Set
Command
{DA}
Function
Bavarian network command that returns the current instantaneous concentration.
Format
<STX>{DA}{<DEVICE I.D.>}<ETX><BCC1><BCC2>
Device response
<STX>{MD}{01}<SP><kkk><SP><+nnnn+ee><SP><ss><SP><ff><SP><mmm><SP>
{000000[0000[}<SP><ETX><BCC1><BCC2 where:
kkk = instrument ID
+nnnn+ee = instantaneous gas concentration in ppb or mg/m3
ss = status byte for both channels with the following bit map (positive logic):
D0
D1
D2
D3
D4
D5
D6
D7
=
=
=
=
=
=
=
=
unused
out of service
instrument is in zero mode
instrument is in span mode
unused
unused
units (1 = ppm, 0 = mg/m3)
instrument is performing a background cycle.
ff =
failure byte for both channels with the following bit map (positive logic):
D0
D1
D2
D3
D4
D5
D6
D7
flow sensor failure
instrument failure
unused
unused
lamp failure
temperature sensor failure
unused
unused.
=
=
=
=
=
=
=
=
mmm = instrument serial number
[0000] = the response will be 6 pad zeroes if the original
or enhanced protocol
is selected. If the Bavarian protocol is selected, the response will be 10 pad
zeroes.
BCC1 = first byte of the block check calculation
BCC2 = second byte of the block check calculation.
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