Tag From

This function block acts as a named reference point for passing data between different parts of your scenario. Use it together with the Tag To block or the data read/write blocks to share values without direct wired connections.

📥 Inputs

Generic Accepts any data type (numbers, text, lists, images, etc.) that you want to expose under a tag name.

📤 Outputs

This function block does not have output sockets. It provides a named storage/reference that other blocks can target or read using referencing blocks.

🕹️ Controls

Tag Name Enter a short, unique string to identify this tag. This name is used by other referencing blocks (for example Tag To, Data Read Local, Data Read Global) to locate or send data to this block.

🎨 Features

• Named Reference — Create a human-readable handle for a value so other blocks can send or read data without a direct wire.

• Duplicate Protection — The block alerts you if another block with the same Tag Name already exists to avoid accidental conflicts.

• Self-write Protection — The block warns if a Tag To block would write to the same block in a conflicting way, helping prevent unintended loops.

📝 Usage Instructions

1. Place this block where you want a shared value to live in your scenario.

2. Type a unique identifier into the Tag Name control.

3. Feed the value you want to share into the Generic input.

4. Use a Tag To block (with the same Tag Name) to send data programmatically, or use data read/write blocks to access the stored value elsewhere.

📊 Evaluation

When the block runs, it accepts the connected input value and exposes it to the referencing system under the configured Tag Name. The user interface will notify you if the chosen tag name causes duplicates or conflicts.

💡 Tips and Tricks

• Use Tag To together with this block to send values from one area of your scenario to another without creating direct wiring.

• For reading values elsewhere, pair with Data Read Local or Data Read Global depending on the scope you need.

• To persist or update values safely, consider combining with Data Write Local or Data Write Global.

• Use Data Memory if you want to freeze a value and avoid it changing until explicitly updated.

• For debugging tag contents while designing, add Debug Input near the sending or reading blocks to inspect values.

• When exporting or logging data, route values collected via tags into Data to JSON or CSV Export blocks.

🛠️ Troubleshooting

• Duplicate tag warning appears Ensure each Tag Name is unique. Rename one of the blocks to avoid collisions.

• Conflict with a sending block If the interface notifies you that a Tag To block tries to send to the same tag in an invalid way, check both blocks' Tag Name values and adjust the workflow to avoid circular references.

• No value available at read-time Confirm the block providing the value is active and that the Generic input is connected or supplying valid data. If your reader still shows nothing, verify matching Tag Name strings (no extra spaces).