Figure 3-3 Valve Position Examples For 3-Port Distribution Valves - tecan cavro xlp 6000 Operating Manual

Figure 3-3
Cavro® XLP 6000 Modular Syringe Pump Operating Manual, 734237-C, en
Because the syringe port is always a common port, in distribution valves, the [B]
(Bypass) and [E] (Extra) commands are meaningless. However, the commands
are available, to provide backward compatibility with earlier versions of firmware.
For example, in Figure 3-3, if the 3-port distribution valve has been initialized with
the [Y] command, the ports will be numbered as shown in the bottom diagram
(counterclockwise). Issuing an [O<3>] command will align the syringe port with
port 3, as shown.
Valve Position Examples for 3-Port Distribution Valves
Following are more detailed descriptions of the various valve commands and what
they do.
I Move Valve to Input Position (Non-distribution Valves)
The [I] command moves the valve to the input port set by the initialization
command, following the shortest path.
I<n> Move Valve Clockwise to Port n (Distribution Valves)
The [I<n>] command sets the valve position to port [n], moving in a clockwise
direction. This command is independent of input or output characteristics.
O Move Valve to Output Position (Non-distribution Valves)
The [O] command moves the valve to the output port set by the initialization
command, following the shortest path.
3 - Software Communication
Operating Commands
3 - 29