Valve Control

Overview

The ValveSelector class controls multi-position valve selectors for automated fluid routing in SI systems.

Quick Start

from SI_API.devices import ValveSelector

# Initialize valve selector
valve = ValveSelector(
    port="COM4",         # Serial port
    num_positions=8,     # 8-position valve
    prefix="/Z",         # VICI standard prefix
    baudrate=9600        # Communication speed
)

Basic Operations

Position Control

# Move to specific positions
valve.position(1)    # Position 1
valve.position(3)    # Position 3
valve.position(8)    # Position 8

valve.position(15)  # Error: exceeds 8 positions

Reliable Positioning

valve.position(5, num_attempts=5)  # Pošle příkaz 5x

# Some valves may not move on first attempt
# Multiple attempts ensure reliable positioning

Documentation References

For comprehensive valve specifications and setup procedures:

• VICI Universal Actuator Manual - Complete hardware specifications and setup procedures