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Tips for Success in Using RS-485 Data Communications
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Tips for Success in Using RS-485 Data Communications
 
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Tips for Success in Using RS-485 Data Communications
From B&B Electronics Manufacturing Co. Inc.
 

 
A: RS-485 devices can be connected to a computer and multi-dropped at various locations in a network style configuration. Devices can be up to 4000 feet (1220 meters) feet away before a repeater is needed, and up to 32 nodes (devices) can be connected. More nodes can be connected using

Products & Services
IEEE 1394 products, FireWire® use an interface standard developed  by Apple Computer and adopted by the the Institute of Electrical and Electronics Engineers (IEEE) for very fast digital data transfers. FireWire is a registered trademark of Apple Computer, Inc. 
Network design and development services design network topologies and ensure that all network devices can communicate with one another.
A GPIB converter translates the data from one bus type to the GPIB bus and vice versa.
Distributed control systems (DCS) use decentralized elements or subsystems to control distributed processes or complete manufacturing systems.
Wireless network components are used to build or replace worn out devices within a wireless network.
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Product Announcements
Black Box Network Services - 900-MHz Serial Transceivers
Eliminate serial cable connections. Control your RS-232 or RS-485 devices wirelessly!... (read more)
Dataforth Corporation - SCM-D100 Single-Channel Data Acquisition Family
Dataforth's SCM9B-D100 DIN rail mount single-channel data acquisition modules offer 15-bit resolution, 500Vrms channel-to-bus isolation, conversion of analog input data to RS-485 digital data, and... (read more)
Delta Tau Data Systems, Inc. - MACRO
MACRO is an acronym for Motion and Control Ring Optical, which is a non-proprietary digital interface developed by Delta Tau Data Systems. The 125Mbit/sec transfer rate through a single fiber optic... (read more)
Black Box Network Services - Industrial RS-232?RS-422/RS-485 DIN Rail Converter
Now your industrial communications can handle temperature extremes!... (read more)
Sealevel Systems, Inc. - SeaI/O - Data Acquisition Solutions
Sealevel's SeaI/O data acquisition modules provide powerful digital, analog, and serial expansion to any computer. Connect to the host via wireless, Ethernet, USB, RS-485, or RS-232 to add the... (read more)
Banner Engineering Corp. - SureCross™ FlexPower™ Wireless Nodes
Banner Engineering Corp. announces that their SureCross™ FlexPower™ Wireless Nodes have won Control Engineering's 2008 Engineers' Choice Award under the "Wireless Solutions" subcategory. (read more)
B&B Electronics Manufacturing Co. Inc. - Serial Data Switches
Make your network administration simpler than ever with our serial data switches. Allowing the networking of a variety of serial devices. (read more)
Patton Electronics Co. - Model 1104 RS-485 Fiber Converter
The Patton Model 1104 RS-485 Fiber Converter provides extended-distance half-duplex RS-485 connections over fiber, while remaining immune to environmental interference. (read more)
Moxa Inc. - 4-port Modbus gateway
The MB3180, MB3280, and MB3480 are standard Modbus gateways that convert between Modbus TCP and Modbus RTU/ASCII protocols. Up to 16 simultaneous Modbus TCP masters are supported, with up to 31... (read more)
Beijing Gemotech Intelligent Technology Co., Ltd - R-8520 Isolated RS/232 to RS/485 Converter Module
R-8520 Isolated RS/232 to RS/485 Converter Module... (read more)
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Topics of Interest
When a network needs to transfer small blocks of information over long distances, RS-485 is often the interface of choice. The network nodes can be PCs, microcontrollers, or any devices capable of... (Read More)
The RS-485 communications standard was introduced in 1983 by the Electronic Industries Alliance (EIA) as a two-wire, half-duplex, multi-drop alternative to the point-to-point RS-232 interface. (Note:... (Read More)
The EIA/TIA RS-485 communications standard, an upgrade of RS-422, supports 32 devices (driver/receiver pairs) in a party line or multi-drop mode, on a cable of up to 4,000 feet for balanced... (Read More)
PBX private networking has evolved dramatically during the past 25 years. The earliest PBX networking arrangements consisted of two switch nodes linked by a dedicated, private line facility, such as... (Read More)
AT&T’s original ETN offering evolved into DCS in 1982 when the U.S. Navy required a single communications system for its San Diego naval base operations, with a port capacity far greater... (Read More)
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