S-Bus is a protocol based on RS485 connection Topology for intelligent buildings. S-bus is the developed protocol used 64 bits to be an Asian and African Standard protocol that administered by the smart-group Association, S-bus Known also as the "Smart-BUS", "SBUSPro" and SmartHome-BUS.

Also another S-Bus known as (Saia-Burgess Bus) is a dedicated protocol for reading process data from devices provided by the Saia-Burgess company.

S-bus protocol

S-bus defines several physical communication media:

• 4 Twisted pair
  Twisted pair
  Twisted pair cabling is a type of wiring in which two conductors are twisted together for the purposes of canceling out electromagnetic interference from external sources; for instance, electromagnetic radiation from unshielded twisted pair cables, and crosstalk between neighboring pairs...
  
   wiring (inherited from the RS485 wiring with the low current supply of 8-32 VDC for standard Smart-bus wiring protocol)
• Powerline
  Powerline
  Powerline or power line may refer to:* Overhead power line, used for electric power transmission* Power line communication, a computer networking technology* Power Line, a political blog* Powerline, a fictional singer in the A Goofy Movie musical...
  
   networking (similar to that used by X10 but more faster and stable)
• Radio (w-bus-RF signal)
• Infrared
  Infrared
  Infrared light is electromagnetic radiation with a wavelength longer than that of visible light, measured from the nominal edge of visible red light at 0.74 micrometres , and extending conventionally to 300 µm...
  
  
• Ethernet (also known as S-bus-net or S-net)
• DMX (known as S-bus-DMX signal)
• KNX
  KNX (standard)
  KNX is a standardized , OSI-based network communications protocol for intelligent buildings. KNX is the successor to, and convergence of, three previous standards: the European Home Systems Protocol , BatiBUS, and the European Installation Bus...
  
   (S-bus KNX converter)

S-bus is designed to be independent of any particular hardware platform. A Smart-group Device Network can be controlled from any 3rd party devices, because of the open protocol of s-bus, bridges and converter.

Smart-group Association, as of December 2011, has nearly 20 members/manufacturers including:

• Smart-Group
• Sunseeker curtains
• Resound Music
• He dong Lighting H D L
• Z-audio
• W-bus Bechamp
• E-kon Powerline
• Smart-bus
• Preussen Automation Germany
• Digitcom canada
• Smart-home UAE
• Smart industry USA
• FDL stage lighting China
• Iriduim Mobile
• E-home automation
• Smart Association for Electronics

The Smart-group Association has partnership agreements with more than 10,000 installer companies in 80 countries and 2 technical smart universities as well as 20 training centres over the world.

Wire transmission

Twisted pair of data using signaling speed of 9600 bit/s. flexible Bus power with 8-32 V DC, and 25 mA, Polarization critical. Can install up to 250 Devices in each bus, linking with network bridges, up to 65280 device per network, Maximum bus length is 1200 m. Topology also very flexible can be loop, star, ring or T connection.

Protocol format (ASCII

ASCII

The American Standard Code for Information Interchange is a character-encoding scheme based on the ordering of the English alphabet. ASCII codes represent text in computers, communications equipment, and other devices that use text...

): bits protocol according to the code tables

Function - Control order operation

• Answer order operation Parameter 1 Parameter 2 Parameter ?

Scene 0x0002 0x0003 Area Scene No

Series 0x001A 0x001B Area Series No

Universal switch 0xE01C 0xE01D Universal switch No Switch status

Single channel adjustment 0x0031 0x0032 Channel No Brightness value Running time is composed by?Byte
MAX:????S, default : ?S

Curtain switch 0xE3E0 0xE3E1 Curtain No Curtain status
Infrared switch 0xE3D0 0xE3D1 Group No Group value Resend times and on/off

GPRS switch 0xE3D4 0xE3D5 1?message

2?remote Series No
Panel switch 0xE3D8 0xE3D9 1?infrared enable 0?off?1?on
2?panel lock key 0?off?1?on
3?AC Power 0?off?1?on
4?AC cooling temp C?18-30?F?64-86
5?AC wind speed 0?auto?1?high?2?mid?3: low
6?AC mode 0?cool?1?heat?2?vent?3?auto
7?AC heating temp C?4-26?F?39-79
Infrared long code switch 0xE3DC 0xE3DD Group No Group value Group location?1byte

S-bus Products

One of the strengths of the S-bus protocol that s-bus have full and complete range of products with minimum wiring and devices.

• Lighting control with Dimming and ON/OFF
• LED control
• DMX stage lighting control
• Heating/ventilation & Air Conditioning control
• Shutter/Blind & shading control
• Security system
• Energy management & Electricity/Gas/Water metering
• Audio & video distribution
• Saving energy and Timers
• Smart Irrigation
• Home cinema system
• Motors and gates control
• SMS control and Touch screen, Remote control
• Smar-Host Gateway
• Power meter

External links

• Group Associations
• Preussen Automation Germany
• OPC Server for S-Bus see also OPC
  OPC
  OPC may refer to:Computing* OLE for process control** OPC Foundation, a related consortium* Open Packaging Conventions* Operations Planning and Control, renamed to IBM Tivoli Workload Scheduler...