Software Communication 3-31
Valve Commands
NOTE If a Valve command is issued to a valveless pump, the command is ignored.
I MOVE VALVE TO INPUT POSITION
The [I] command moves the valve on the XP 3000 to the input position set by the [Y] and
[Z] commands.
For example:
If the [I] command is sent after the [Z] command, the valve will be open on the left
side (as viewed from the front of the pump).
O MOVE VALVE TO OUTPUT POSITION
The [O] command moves the valve on the XP 3000 to the output position set by the [Y]
and [Z] commands.
For example:
If the [O] command is sent after the [Z] command, the valve will be open on the
right side (as viewed from the front of the pump).
The illustration below shows the positions of the valves in relation to the Initialization
command and valve movement used.