Metrohm 797 VA Computrace - Handbuch (Seite 81)

2.13 Kommunikations-Schemas für Automation
VA Computrace 797 / Hardware-Gebrauchsanweisung 8.797.8001DE
73
2.13.3 Kommunikationsschema MLAT
797 VA Computrace Dosinos 1..3
838 Advanced Sample
Processor
731 Relay Box
Set line: Start 838 (TTL 3)
Ready (TTL 7)
Set line: Siphoning (TTL 5)
Prep Dosino 1,2,3 ?
Prep Dosino 1, 2, 3
YES
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinsing (TTL 6)
Wait rinsing time
No. of Prep
cycles
Is it the
first sample of the
sequence ?
NO
Set line: Siphoning (TTL 5)
Wait siphoning time
NO
YES
Set line: Sample transfer (TTL 4)
Ready (TTL 7)
Predose
Measurement
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinse needle (TTL 4)
Ready (TTL 7)
Set line: Siphoning (TTL 5)
Wait siphoning time
Set line: Rinsing (TTL 6)
Wait rinsing time
No. of rinsing cycles
Export/Print results
Set line: End of sample (TTL 1)
More samples ?
NO
YES
Set line: End of sample table (TTL 2)
MLAT Standard addition for brighteners
<Use for predose> active ?
YES
NO
Scan line : 838 ready
(TTL 7)
Scan line : 838 ready
(TTL 7)
Scan line : 838 ready
(TTL 7)
No. of rinsing cycles
Wait siphoning time
Set line: Siphoning (TTL 5)
Wait siphoning time
Measure Intercept
Dose
<Use after
sample transfer>
active ?
YES
NO
Note: Use <Use for
predose> to dose
VMS via Dosino 1 and
„Suppressor concent-
rate“ via Dosino 3
Note: Use <Use after
sample tranfer> to do-
se „Suppressor con-
centrate“ via Dosino 3
Tim
elin
e
End
Abb. 39: Kommunikations-Schema für MLAT