HD series DDC controller

HD series universal programmable controller is a new generation of network DDC designed for smart building automatic control system.Through various communication interfaces to support a variety of standard mainstream
communication protocols, it can adapt to a variety of building control network architecture, whether for new projects or renovation projects, it can build a control network flexibly and reliably. 

Download

Features

· CPU:240MHz, M4 Core, 2M+8M Flash, 512K+8M SDRAM
· UIO programmable universal input & output design that can be easily configured by software, no dip switches or jumpersrequired
Isolated RS-485 interfaces, support up to 115200bps baud rate
· Each RS-485 interface can connect up to 5l/O extended module
· 10/100M adaptive Ethernet communication interfaces
· Equipped with hardware encryption chip (support SM2 and SM4 national secret algorithm)
· System real time clock
· Communication protocols: Modbus RTU, Modbus TCP, BACnet MS/TP, BACnet/IP
· Support Modbus Master Slave and BACnet Data Sharing
· Bluetooth, connected via mobile phone to view and modify DDC configurations
· Equipped with termination resistor (enabled by button), no external bus matching resistor required
· Support remote upgrading
· Chinese character based graphical software programming tool
· Free programming schedule (weekly schedule, holidays)

Specifications

Model HD1407 HD1407E HD1407S HD0904
Electrical characteristic Power Supply AC/DC24V±10%,50-60 Hz
Operating temp.
& humidity
0~50℃(32~122℉);10~90% relative humidity, non-condensing
Storing temp.& humidity -40~70℃(-140~158℉);10~90% relative humidity, non-condensing
CPU 240MHz,M4 core
Memorizer 2M+8M Flash,512K SARM+8M SDRAM
communication Ethernet single network port double network port single network port single network port
high speed:10/100 Base-T Ethernet;(1500Vrms Isolated)
protocols:IPv4/IPv6、TCP、UDP、HTTP
application layer protocols:BACnet/IP、Modbus TCP
RS-485 two RS-485 communication interfaces two RS-485 communication interfaces three RS-485 communication interfaces two RS-485 communication interfaces
baud rate 1200~115200(unit:bps default:9600bps)
Equipped with termination resistor:RS-485 termination resistor selectable(enabled by button)
Data bit: 8; Stop bit: 1; Check: No check, even check, odd check (default: no check)
protocol:Modbus RTU,BACnet MS/TP
mode:Modbus master/sub mode
W x L x H (mm) 180x127x58 180x127x58 180x127x58 120x127x58
Installation Screws are positioned on a flat or 35mm DIN rail mount
Material flame retardant
IP rating IP20

APPLICATION

RELATED NEWS

News HVAC Controls Wholesale: How to Vet a China Manufacturer Before Your First Container Order
On July 17, 2026
HVAC Controls Wholesale: How to Vet a China Manufacturer Before Your First Container Order
A structured 3-stage guide for HVAC distributors to evaluate Chinese manufacturers, including factory screening, quality control verification, sample testing, and commercial terms negotiation.
Learn More
News UL, CE and BTL Certified HVAC Controls: Why Certifications Matter for Global Distributors
On June 11, 2026
UL, CE and BTL Certified HVAC Controls: Why Certifications Matter for Global Distributors
Understand UL, CE, BTL, FCC, and RoHS certifications for HVAC controls. Market requirements by region, how to verify certificates, and common procurement pitfalls.
Learn More
News Fan Coil Thermostat Buyer’s Guide: 2-Pipe vs 4-Pipe Systems Explained
On May 29, 2026
Fan Coil Thermostat Buyer’s Guide: 2-Pipe vs 4-Pipe Systems Explained
Learn how 2-pipe and 4-pipe fan coil systems affect thermostat selection. Includes valve matching, changeover logic, power options, and a project-type selection matrix.
Learn More

We value your privacy

We use cookies to enhance your browsing experience, serve personalised ads or content, and analyse our traffic. By clicking "Accept All", you consent to our use of cookies.