# Power Supply Related Code

This file is a reference-only extraction. It is not compiled by the Housing app.

## Source Files

- `Services/EquipmentMeasurementSettings.cs`
- `Services/EquipmentMeasurementService.cs`
- `Services/IScpiClient.cs`
- `Services/TcpScpiClient.cs`
- `Services/SerialScpiClient.cs`
- `Services/VisaScpiClient.cs`

## Hardware.ini Keys

```ini
[Equipment]
Timeout=5000
SettleMilliseconds=300
PreBoardCommand=VOLT 5, (@2);OUTP ON, (@2)
PreBoardDelayMilliseconds=2000
LogoutCommand=OUTP OFF, (@1)

; E36233A Power Supply
CurrentConnection=LAN
CurrentResource=
CurrentIdnMatch=E36233A
CurrentHost=192.168.10.12
CurrentPort=5025
CurrentPortName=
CurrentBaudRate=9600
CurrentTerminator=LF
CurrentSetupCommand=OUTP ON, (@1)
CurrentCleanupCommand=OUTP OFF, (@1)
CurrentReadCommand=MEAS:CURR? (@1)
```

## Settings Load Code

```csharp
PreBoardCommand = GetString(values, "PreBoardCommand", string.Empty);
PreBoardDelayMilliseconds = GetInt(values, "PreBoardDelayMilliseconds", 0);
LogoutCommand = GetString(values, "LogoutCommand", string.Empty);
Current = LoadChannel(values, "Current", "MEAS:CURR? CH1", "E362");
```

## Pre-Board Output Control

```csharp
public async Task<string> RunPreBoardCommandAsync()
{
    var log = new StringBuilder();
    if (IsDisabled(_settings.Current) || string.IsNullOrWhiteSpace(_settings.PreBoardCommand))
    {
        return string.Empty;
    }

    using var client = await CreateClientAsync("CURRENT", _settings.Current);
    log.AppendLine($"> CURRENT PRE-BOARD CONNECT: {DescribeClient(client, _settings.Current)}");
    log.AppendLine($"> CURRENT PRE-BOARD SETUP: {_settings.PreBoardCommand}");
    await SendCommandListAsync(client, _settings.PreBoardCommand);
    return log.ToString();
}
```

## Current Read Flow

```csharp
if (!IsDisabled(_settings.Current) && !string.IsNullOrWhiteSpace(_settings.Current.SetupCommand))
{
    currentClient = await CreateClientAsync("CURRENT", _settings.Current);
    log.AppendLine($"> CURRENT PRE-READ CONNECT: {DescribeClient(currentClient, _settings.Current)}");
    log.AppendLine($"> CURRENT PRE-READ SETUP: {_settings.Current.SetupCommand}");
    await SendCommandListAsync(currentClient, _settings.Current.SetupCommand);
}

var current = currentClient is null
    ? await ReadChannelAsync("CURRENT", _settings.Current, log)
    : await ReadChannelWithClientAsync("CURRENT", _settings.Current, currentClient, log, skipSetupCommand: true);
```

## Cleanup And Logout

```csharp
private static async Task SendCleanupCommandAsync(IScpiClient? client, ScpiChannelSettings channel, StringBuilder log)
{
    if (client is null || string.IsNullOrWhiteSpace(channel.CleanupCommand))
    {
        return;
    }

    try
    {
        log.AppendLine($"> CURRENT CLEANUP: {channel.CleanupCommand}");
        await SendCommandListAsync(client, channel.CleanupCommand);
    }
    catch (Exception ex)
    {
        log.AppendLine($"> CURRENT CLEANUP FAILED: {ex.Message}");
    }
}
```

```csharp
public async Task<string> RunLogoutCommandAsync()
{
    var log = new StringBuilder();
    if (IsDisabled(_settings.Current) || string.IsNullOrWhiteSpace(_settings.LogoutCommand))
    {
        return string.Empty;
    }

    using var client = await CreateClientAsync("CURRENT", _settings.Current);
    log.AppendLine($"> CURRENT LOGOUT CONNECT: {DescribeClient(client, _settings.Current)}");
    log.AppendLine($"> CURRENT LOGOUT: {_settings.LogoutCommand}");
    await SendCommandListAsync(client, _settings.LogoutCommand);
    return log.ToString();
}
```

## Protected Power-Off Command Guard

```csharp
private static async Task SendCommandListAsync(IScpiClient client, string commands)
{
    foreach (var command in SplitCommands(commands))
    {
        if (IsProtectedPowerOffCommand(command))
        {
            continue;
        }

        await client.SendAsync(command);
        await Task.Delay(100);
    }
}
```

```csharp
private static bool IsProtectedPowerOffCommand(string command)
{
    return Regex.IsMatch(command, @"^\s*OUTP(?:UT)?\s+OFF\s*,?\s*\(@2\)\s*$", RegexOptions.IgnoreCase);
}
```