INFICON VGC403 Three-Channel Measurement and Control Unit - Manual (Page 35)

tinb07e1-e 2011-07 Vacuum Gauge Controller
35
6.3.2 AOM
Analog output mode. Characteristic curve of the recorder
output. See Chapter 5.3.5 Recorder output (Ao),  27.
S: AOM[,a,b]<CR>[<LF>]
R: <ACK><CR><LF>
S: <ENQ>
R: a,b<CR><LF>
6.3.3 BAU
Baud rate. Transfer rate of the RS232C interface. See
Chapter 5.3.2 Baud rate (bAud),  27.
S: BAU[,a]<CR>[<LF>]
R: <ACK><CR><LF>
S: <ENQ>
R: a<CR><LF>
NOTE:
The acknowledgement of the BAU command will al-
ready be sent with the changed transfer rate.
6.3.4 COM
Continuous mode. Continuous transmission of measure-
ments to the serial interface.
S: COM,a<CR>[<LF>]
R: <ACK><CR><LF>
The acknowledgement is immediately followed by the
continuous measurement transmission. The measure-
ments are always output in the exponential format.
R: b,±c.ccccE±cc,d,±e.eeeeE±ee,f,±g.ggggE±gg
<CR><LF>
Parameter Significance
a Channel number
0 = Channel 1
1 = Channel 2
2 = Channel 3
b Characteristic curve
0 = Logarithmic LoG
1 = Logarithmic LoG A
2 = Logarithmic LoG -6
3 = Logarithmic LoG -3
4 = Logarithmic LoG +0
5 = Logarithmic LoG +3
6 = Logarithmic LoGC1
7 = Logarithmic LoGC2
8 = Logarithmic LoGC3
9 = Linear Lin -10
10 = Linear Lin -9
11 = Linear Lin -8
12 = Linear Lin -7
13 = Linear Lin -6
14 = Linear Lin -5
15 = Linear Lin -4
16 = Linear Lin -3
17 = Linear Lin -2
18 = Linear Lin -1
19 = Linear Lin +0
20 = Linear Lin +1
21 = Linear Lin +2
22 = Linear Lin +3
23 = iM221
24 = Logarithmic LoGC4
25 = PM411
Parameter Significance
a Transfer rate
0 = 9600 baud (default)
1 = 19200 Baud
2 = 38400 Baud
Parameter Significance
a Period
0 = 100 milliseconds
1 = 1 second (default)
2 = 1 minute
b Status of channel 1
0 = Measurement data ok
1 = Underrange
2 = Overrange
3 = Sensor error
4 = Sensor switched off
5 = No sensor
6 = Identification error
7 = BPG/BCG/HPG error
±c.ccccE±cc Reading of sensor 1 in current unit
of measurement
d Status of channel 2
(see above)
±e.eeeeE±ee Reading of sensor 2 in current unit
of measurement
f Status of channel 3
(see above)
±g.ggggE±gg Reading of sensor 3 in current unit
of measurement