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Cavro® XLP 6000 Modular Syringe Pump Operating Manual, 734237-C, en
3 - Software Communication
Operating Commands
O<n>
Move Valve Counterclockwise to Port n (Distribution Valves)
The [O<n>] command sets the valve position to port [n], moving in a
counter-
clockwise
direction. This command is independent of input or output
characteristics.
B
Move Valve to Bypass (Non-distribution Valves)
The [B] command connects the input and output positions, bypassing the
syringe. The valve moves following the shortest path.
E
Move Valve to Extra Position (4-Port Non-distribution Valve)
The [E] command connects the extra position in the 4-port valve, bypassing
the syringe. The valve moves following the shortest path.
Note: The [B] and [E] commands are useful when flushing fluid lines.
If a Valve command is issued to a valveless pump, the command is ignored.
Caution! When the valve is in the Bypass position, the syringe plunger will not
move. Sending a Plunger Movement command causes an error 11 (plunger move
not allowed).
Figure 3-4
Valve Position Examples for 4-Port Non-Distribution Valves