LAMBDA OMNICOLL Fraction Collector - Sampler
Operation MANUAL 2023.01
www.lambda-instruments.com
32
# ss mm
q
xxxx qs c
pause time between two fractions (in minute steps)
(fraction collector automatically enters “high” mode)
# ss mm
n
xxxx qs c
number of fractions
(fraction collector automatically enters
“high” mode)
# ss mm
G x
qs c
to request the fraction collector to send data to the PC
where x is a number from 0-3:
0: collection time setting (TIME)
1: pulse setting (COUNT)
2: pause time setting (PAUSE)
3: number of fractions setting (NUMBER)
The answer of the OMNICOLL fraction collector-sampler is the following:
< mm ss
B
xxx.x qs c
time xxx.x in 0.1 minute steps (collector is in stand-by mode)
< mm ss
B
xxxx qs c
time xxxx in minute steps resp. number of pulses or fractions
(collector is in stand-by mode)
< mm ss
R
xxx.x qs c
time xxx.x in 0.1 minute steps (collector is in operation)
< mm ss
R
xxxx qs c
time xxxx in minute steps resp. number of pulses or fractions
(collector is in operation)
11.1.3 Checksum control
The following examples show, how the checksum is calculated:
mm = 01 [PC address (master) is set to 01]
ss = 02 [Device address (slave) is set to 02]
The PC sends:
#0201
g
4D
cr
The control addition (checksum) is made in the following way (only the
last byte
(2 ASCII
characters of the type 0…9ABCDEF) is taken):
#
0
2
0
1
g
4D (last byte)
cr
23h
+30h
+32h
+30h
+31h
+67h
=1
4D
h
0Dh
The PC sends: #0201
t
102320
cr
The control addition (checksum) is made in the following way (only the last byte (2 ASCII
characters of the type 0…9ABCDEF) is taken):
#
23
h
0
+30
h
2
+32
h
0
+30
h
1
+31
h
t
+74
h
1
+31
h
0
+30
h
2
+32
h
3
+33
h
20 (last byte)
= 2
20
h
cr
0Dh
