INFICON T-Guard Leak Detection Sensor Interface description - Manual (Page 26)

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RS232 Binary Interface Protocol
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4.2.1 Command List Binary Mode
Tip: Often used commands are bold
No. Name Description Parameter Data
2 Get vacuum
pressure Fore vacuum
pressure Byte 0: unit
0=mbar
1=Pa
2=atm
3=Torr Pressure [float]
5 Get Device ID Device type 40=T-Guard
8 Get Version Software version Byte 0=main version
Byte 1=sub version
10 Get Valves Valves status Unsigned int.
V1 0x0100
(normally closed)
V2 0x0200
(normally open)
V3 0x0400
(normally open)
which means:
0=READY
3=GROSS
4=CONTAMINATION
5=FINE
6=STANDBY
16 Get Contrast Display contrast Byte 0
38 Get Min Since Start Uptime Bytes 0..3: time in
minutes [ulint]
44 Get Status Gets status 1=StartStandby
2=Standby
3=Contaminated
4=RunUp
5=StartAccumulation
8=NoPurge
10=AccGross1
20=AccFine1
25=AccWait
30=AccFine2
32=AccGross2
36=WaitPurge
38=Purge
40=Ready
50=CGStart
55=CGGross
65=CGFine
70=CGRef
150=CMStart
155=CMGross
160=CMFine
165=CMStop
52 START Starts measurement
53 STOP Stops measurement
54 Get Cal State Gets calibration state 0=No Cal Running
1=Cal Running