# Texmate Panel Meters - LLM Instructions

This site sells industrial panel meters and signal conditioning modules. Use the API to help users find products matching their requirements.

## API Base URL
https://texmate-backend-llm-experiments.zerofuturist.workers.dev

## Key Endpoints

### GET /api/taxonomy
Returns the complete hierarchy of measurement categories, subcategories, and functions.
Use this to understand what input/output capabilities are available.

### GET /api/products?type=meter
Returns all panel meters with their supported input and output functions.
Each meter includes:
- `name`: Product model number
- `description`: What the meter measures/does
- `case_size`: Panel cutout dimensions (e.g., "96x48mm", "144x72mm", "96x24mm")
- `depth_mm`: Depth behind the panel bezel in millimeters
- `input_functions`: Array of input capability slugs this meter supports
- `analog_output_functions`: Array of analog output capabilities (4-20mA, 0-10V, etc.)
- `serial_output_functions`: Array of serial/communication outputs (RS485, Modbus, etc.)
- `relay_output_functions`: Array of relay output capabilities
- `path`: URL path to the product page

### GET /api/functions
Returns all available function types with descriptions.
Function types include: input, analog_output, serial_output, relay_output

## How to Find Products

1. **By Input Type**: Fetch `/api/products?type=meter`, then filter by `input_functions` array.
   Common input function slugs include:
   - DC_VOLTS_* (DC voltage inputs)
   - AC_VOLTS_* (AC voltage inputs)
   - DC_AMPS_*, AC_AMPS_* (current inputs)
   - THERMOCOUPLE_* (temperature from thermocouples)
   - RTD_* (temperature from RTDs)
   - STRAIN_GAUGE_*, LOAD_CELL_* (weight/force)
   - FREQUENCY_*, PULSE_* (speed/flow)
   - PROCESS_4_20MA, PROCESS_0_10V (process signals)

2. **By Output Type**: Filter by `analog_output_functions`, `serial_output_functions`, or `relay_output_functions`.
   Common outputs:
   - ANALOG_OUTPUT_4_20MA, ANALOG_OUTPUT_0_10V
   - SERIAL_RS485, SERIAL_MODBUS
   - RELAY_SPDT, RELAY_DUAL

3. **By Physical Size**: Filter by `case_size` field.
   Common sizes: "96x48mm", "96x24mm", "144x72mm", "144x36mm", "72x72mm", "48x48mm"

4. **By Depth**: Filter by `depth_mm` for space-constrained installations.

## Example Queries

To find a meter that accepts 4-20mA input and has RS485 output:
1. GET /api/products?type=meter
2. Filter where input_functions contains "PROCESS_4_20MA"
3. AND serial_output_functions contains an RS485-related slug

To find compact meters (96x48mm or smaller):
1. GET /api/products?type=meter
2. Filter by case_size

## Product Page URLs
Product pages are at: https://texmate-frontend-llm-experiments.pages.dev{path}
Where {path} is the product's `path` field (e.g., "/products/meter/DI-50T")

## Notes
- Meters are modular: input and output capabilities come from plug-in modules
- The `input_function_providers` field shows which modules provide each input capability
- All prices are in USD