Owner's manual

2 Installation
797 VA Computrace / Hardware-Manual 8.797.8001EN
68
2.13 Communication diagrams for automation
In this chapter, sequence diagrams are used to describe the communication between
the devices for automation with a 838 Advanced Sample Processor.
The communication sequence depends on the selected Calibration technique in the
window
WORKING METHOD SPECIFICATION.
The 797 VA Computrace acts as master.
The TTL's used in the diagram match with the following connections:
TTL 797 VA Computrace 838 Advanced
Sample
Processor
731 Relay Box
1 Pin 3 (End of sample)
Pin 10 (Input 3)
2 Pin 4 (End of sample table)
Pin 24 (Input 6)
3 Pin 5 (Start) Pin 12 (Input 7)
4 Pin 6 (Set Control line) Pin 22 (Input 2)
5 Pin 7 (Siphoning) Pin 7 (Output 9)
6 Pin 8 (Rinsing) Pin 8 (Output 10)
7 Pin 17 (Scan Control line)
Pin 5 (Output 0)
Legend to the communication diagrams (Section
2.13.1 - 2.13.6):
NO
YES
Signal wird von einem Gerät
an ein anderes gesendet
Sequenz-Block (der im Diagramm
nicht detailliert beschrieben wird)
Warten eines Gerätes auf ein
eintreffendes Signal
Alternativer Sequenz-Ablauf
Ein- oder mehrmalige Wiederholung des Se-
quenz-Teils zwischen Pfeilanfang und -ende