Tag Access Code

Reading and Writing Tags

C# Tag Access

csharp

// Reading tags
double temperature = @Tag.Process.Temperature;
bool motorRunning = @Tag.Motor1.Running;
string batchID = @Tag.Batch.ID;
DateTime timestamp = @Tag.System.CurrentTime;

// Writing tags
@Tag.Setpoint.Value = 75.5;
@Tag.Pump.Start = true;
@Tag.Message.Text = "Process started";

// Array access
double[] values = @Tag.Data.Array;
@Tag.Data.Array[0] = 100;

// Quality and timestamp
TagQuality quality = @Tag.Process.Temperature.Quality;
DateTime lastUpdate = @Tag.Process.Temperature.Timestamp;

Python Tag Access

python

# Reading tags
temperature = @Tag.Process.Temperature
motor_running = @Tag.Motor1.Running
batch_id = @Tag.Batch.ID

# Writing tags
@Tag.Setpoint.Value = 75.5
@Tag.Pump.Start = True
@Tag.Message.Text = "Process started"

# Array operations
import numpy as np
values = np.array(@Tag.Data.Array)
mean_value = np.mean(values)
@Tag.Statistics.Mean = mean_value

# Bulk operations
tags_to_read = ['Tag1', 'Tag2', 'Tag3']
values = @Tag.ReadMultiple(tags_to_read)

Tag Properties and Methods

csharp

// Tag properties
public class TagProperties
{
    // Basic properties
    string Name { get; }
    object Value { get; set; }
    TagQuality Quality { get; }
    DateTime Timestamp { get; }
    
    // Extended properties
    double Min { get; set; }
    double Max { get; set; }
    string Units { get; }
    string Description { get; }
    
    // Methods
    void ForceValue(object value);
    void Subscribe(Action<TagChangeEvent> handler);
    void Unsubscribe();
    bool WriteWithConfirm(object value, int timeout);
}

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