INFICON Composer Gas Concentration Controller - Manual (Page 147)

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Composer Operating Manual
7.4.3 List of Commands with their Subcommands, Data,
and Response Data.
Command Sent Data Response Data
Subcommand/Prog Num
E(cho) Any string String that was sent
H(ello) “Composer Ver x.xxx"
(x.xxx = controller
firmware version)
Q(uery)
00 pp Temperature Setpoint
Float
01 pp Carrier Molecular Weight Float
02 pp Carrier Gamma Float
03 pp Precursor Molecular Weight Float
04 pp Precursor Gamma Float
05 pp Process Gain Float
06 pp Process Time Constant Float
07 pp Process Dead Time Float
08 pp Bubbler Max Flow short integer
09 pp Bubbler Full Scale short integer
10 pp Dilution Max Flow short integer
11 pp Dilution Full Scale short integer
12 pp Total Channel Flow short integer
13 pp Target Concentration float
14 pp Concentration Tolerance window float
15 pp Control loop type byte
0 = PID
1 = Fuzzy
16 Program number byte
17 Main Bubbler Flow short integer
18 Max Input Concentration float
19 Min Input Concentration float
20 Weight Fraction Multiplier float
NOTE: Note: pp = One byte program number - value between 1 and 9.