Industrial 4-20mA data logger

iGW-H5 Pressure / Level Logger

Two-channel 4-20mA industrial logger for pressure or water level. Local Pressure Master web UI, DOUT alerts, offline buffer, MQTT over Ethernet or 4G LTE. Logger công nghiệp 2 kênh 4-20mA cho áp suất hoặc mực nước. Web Pressure Master tại chỗ, cảnh báo DOUT, buffer offline, MQTT qua Ethernet hoặc 4G LTE.

Documentation Contact
2×4-20mA
ETH+ 4G LTE
2DOUT
OTASHA-256
iGW-H5 architecture
Architecture: sensors → iGW-H5 → Ethernet / 4G → MQTT Kiến trúc: cảm biến → iGW-H5 → Ethernet / 4G → MQTT
Technical Specifications

Shipping SKU — HLOG / DLOG logger SKU đang bán — logger HLOG / DLOG

Important: Public specs describe the 4-20mA logger runtime. Do not advertise LoRaWAN, RS485, CAN, Wi-Fi, 4× 0–24 V AI, or 20-node LCD UI as current features. Enclosure photos showing a 20-node T/H grid are restricted for capability claims. Lưu ý: Thông số công khai mô tả runtime logger 4-20mA. Không quảng cáo LoRaWAN, RS485, CAN, Wi-Fi, 4× AI 0–24 V, hoặc UI LCD 20 node. Ảnh enclosure có lưới 20 node T/H bị hạn chế khi claim tính năng.
Core
MCUSTM32H563 · Cortex-M33
ModemQuectel EG915N · LTE Cat-1
Power9–36 VDC (confirm production label)
DisplayMAX7219 7-segment
I/O (HLOG)
Analog2× 4-20mA CH1/CH2
Sensor types0–10 / 0–16 bar · mmH₂O 10 m / 160 m
Digital outDOUT1 · DOUT2
Not on SKUWi-Fi · Modbus · LoRa · CAN · RS485
Network & cloud
EthernetDHCP · fallback web 192.168.1.2
4G MQTTiot.hbqsolution.com:1883
ETH MQTTiot.hbqweblog.com
FailoverETH ↔ GSM on MQTT/IP or link loss
Logging & alert
SamplingDefault 60 s · remote 20–1820 s
Offline bufferRAM queue + AT45 ring (capacity TBD)
AlertsHigh/low + hysteresis → DOUT
Calibration3-point per channel
Documentation

Technical Wiki

Contents
Overview
Measurement & I/O
Network & cloud
Pressure Master
Limits / not included
Overview

iGW-H5 · industrial 4-20mA data logger

iGW-H5 samples two 4-20mA loops (pressure or level), evaluates high/low alerts with hysteresis, drives DOUT1/DOUT2, stores samples offline, and publishes MQTT telemetry over Ethernet or 4G LTE. iGW-H5 lấy mẫu hai vòng 4-20mA (áp suất hoặc mực nước), đánh giá cảnh báo high/low có hysteresis, kéo DOUT1/DOUT2, lưu mẫu khi offline và gửi MQTT qua Ethernet hoặc 4G LTE.

Architecture
Local UI

Pressure Master (web over Ethernet): Monitor & Alert, System Config, Calibration 3-point. Local readout: 7-segment.

Measurement & I/O

HLOG_2CH runtime

GroupFunctionNotes
AnalogCH1 / CH2 · 4-20mA0–10 bar · 0–16 bar · mmH₂O 10 m / 160 m
DOUTDOUT1 / DOUT2Alert actions; use external relay/opto for industrial loads
VSENSensor supplySwitched with sampling
USBUART debug (CH340)Console — not an operator WAN
Sampling default 60 s (remote 20–1820 s). Sending rate default 10 (remote 1–255). MQTT batch max 6 samples.
Network & cloud

Ethernet + LTE Cat-1 failover

Ethernet DHCP; if DHCP times out, web config at 192.168.1.2. Cellular MQTT host: iot.hbqsolution.com:1883. Ethernet MQTT host: iot.hbqweblog.com.

APN presets (VN)

Viettel v-internet · Vietnamobile Internet · MobiFone m-wap · VinaPhone m-world.

Device IDs

4G: DLOG-TH-{IMEI} · Ethernet: HLOG-TH-{MAC12}.

Broker port 1883 is plaintext MQTT. Do not claim TLS without an approved security profile. Offline buffer exists (RAM + AT45); capacity is not published as SLA.
Pressure Master

Local commissioning over Ethernet

Configure thresholds, hysteresis, channel priority (P1/P2 Highest), and 3-point calibration. Remote attributes can adjust samplingrate_sec, sending_rate, alert_config. OTA via HTTP with SHA-256.

Limits / not included

Do not sell these as current HLOG features

TopicStatus
Wi-FiUnsupported on this SKU
Modbus RTU / RS485Unsupported (RS485 DNP on Rev 1.2)
LoRaWAN / 20-node LCD UIUnsupported — photo restricted
CAN / J1939Unsupported in HLOG runtime
4× AI 0–24 V · 2 DI optoHardware brief only — not HLOG public I/O
IP / dimensions / temperatureNot published — do not invent
Firmware version numberInternal only — do not print on store/wiki marketing
Enclosure photo (carbon-fiber look, antennas, glands) may be used for appearance only. Do not use the on-screen 20-node T/H grid as proof of shipping firmware. Ảnh vỏ (carbon-fiber, anten, gland) chỉ dùng minh họa hình dáng. Không dùng lưới 20 node T/H trên LCD làm bằng chứng firmware đang bán.
iGW-H5 enclosure appearance only