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serversdwn f9139d6aa3 feat: Add comprehensive NL-43/NL-53 Communication Guide and command references

- Introduced a new communication guide detailing protocol basics, transport modes, and a quick startup checklist.
- Added a detailed list of commands with their functions and usage for NL-43/NL-53 devices.
- Created a verified quick reference for command formats to prevent common mistakes.
- Implemented an improvements document outlining critical fixes, security enhancements, reliability upgrades, and code quality improvements for the SLMM project.
- Enhanced the frontend with a new button to retrieve all device settings, along with corresponding JavaScript functionality.
- Added a test script for the new settings retrieval API endpoint to demonstrate its usage and validate functionality.

2025-12-25 00:36:46 +00:00

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✅ NL-43 / NL-53 Command Format — Verified Quick Reference

This cheat sheet lists confirmed working command formats for NL-43 and NL-53 devices, based on the official Rion Communication Guide (pages 30–96).

🧠 Protocol Basics

Command format: Command,Param[CR][LF] — no space after comma.
Query format: Command?[CR][LF]
Line endings: CR = \r (0x0D), LF = \n (0x0A), always use both.
No $ prefix unless specifically required (e.g. system control).

✅ Confirmed Commands

📏 Start/Stop Measurement

Action	Command Sent
Start	`Measure,Start\r\n`
Stop	`Measure,Stop\r\n`

Important: These must be exact — no space after comma, param is a capitalized string.

🕒 Set/Query Clock

Action	Command Sent
Set Time	`Clock,2025,12,23 23:45:00\r\n`
Query Time	`Clock?\r\n`

📈 One-Shot Readout (DOD)

Action	Command Sent
Get Snapshot	`DOD?\r\n`

Returns: comma-separated line with values like R+70.2,91.1,88.0,...

🔁 Streaming Output (DRD)

Action	Command Sent
Start DRD Output	`DRD?\r\n`
Stop DRD Output	`\x1A` (SUB)

🔧 Echo On/Off

Action	Command Sent
Enable	`Echo,On\r\n`
Disable	`Echo,Off\r\n`
Query	`Echo?\r\n`

⚠️ Common Mistakes to Avoid

❌ Don’t include a space after comma: Measure, Start → invalid.
❌ Don’t use numeric params if the spec requires strings.
❌ Don’t forget \r\n line ending — most commands won’t work without it.
❌ Don’t send multiple commands at once — insert 1s delay between.

This file is safe for ingestion by agents or UI generators.

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