YTL DDS353H / YTL528x (multi-tariff)

Status: Unverified · Register points: 95 · Transports: Modbus RTU

A curated ModDef profile for the YTL DDS353H / YTL528x (multi-tariff). Import it as ytl.dds353h or load the .moddef.yaml directly.

Connect to one over Web Serial and watch its values live in the device dashboard.

Usage

Load the profile, bind a transport, and read a point by name. The runtime applies the offset, scaling, byte order, and sentinels from the definition.

Go

doc, _ := moddef.Load("ytl-dds353h.moddef.yaml")
dev, _ := client.New(doc, "ytl-dds353h", transport) // your modbus.Transport
v, _ := dev.ReadPoint(ctx, "frequency")
fmt.Println(v)

TypeScript

import {Device} from '@moddef/core';
import {loadDocument} from '@moddef/core/node';

const doc = await loadDocument('ytl-dds353h.moddef.yaml');
const dev = Device.create(doc, 'ytl-dds353h', transport);
console.log(await dev.readPoint('frequency'));

Rust

let doc = moddef_core::load("ytl-dds353h.moddef.yaml")?;
let mut dev = Device::new(&doc, Some("ytl-dds353h"), transport)?;
let v = dev.read_point("frequency").await?;

Python

from moddef import Device, load
from moddef.pymodbus import Options, PymodbusTransport

doc = load("ytl-dds353h.moddef.yaml")
transport = await PymodbusTransport.tcp("192.168.1.50", options=Options())
dev = Device.create(doc, "ytl-dds353h", transport)
print(await dev.read_point("frequency"))

C

md_doc_t doc;
md_doc_init(&doc, flash_ptr, flash_len);        /* zero-copy view */

md_dev_t dev;
md_dev_init(&dev, &doc, MD_STR("ytl-dds353h"), &transport);

md_value_t v;
md_dev_read(&dev, MD_STR("frequency"), &v);

C++

auto doc = moddef::Document::view(flash_bytes).value();   // zero-copy over flash
auto dev = moddef::Device::open(doc, "ytl-dds353h", transport).value();

if (auto v = dev->read("frequency"); v)
    std::cout << v->to_string() << '\n';

Measurands

The 10 semantic quantities this device reports, each linked to the measurand catalog. Query a device by measurand instead of a raw point when you want portable code.

Base quantity	Name	Unit	Description
voltage	Voltage	V	RMS voltage; qualify with phase_ref (L1_N, L1_L2, ...)
current	Current	A	RMS current; qualify with phase_ref / direction
active_power	Active Power	W	Instantaneous real power
reactive_power	Reactive Power	var	Instantaneous reactive power
apparent_power	Apparent Power	VA	Instantaneous apparent power
power_factor	Power Factor	1 (ratio)	Ratio of real to apparent power (dimensionless)
frequency	Frequency	Hz	Grid frequency
energy_active	Active Energy	Wh	Cumulative active energy register
energy_reactive	Reactive Energy	varh	Cumulative reactive energy register
temperature	Temperature	degC	Temperature; qualify with location (INTERNAL, EXTERNAL, ...)

Source

• Profile: energy-meter/ytl-dds353h/ytl-dds353h.moddef.yaml
• Register map: vendor documentation