BinderBus seeks to spark distributed network revolution

For a decade, distributed device networks promised dramatically lower costs and more openness. However, technological limits kept market penetration slight and slowed growth, even though many device networks were eventually established.SerCoNet Ltd. (Netanya, Israel) says these constraints include buses that: sacrifice data-rate to allow longer distance; use master/slave communications an...

05/01/1999


For a decade, distributed device networks promised dramatically lower costs and more openness. However, technological limits kept market penetration slight and slowed growth, even though many device networks were eventually established.

SerCoNet Ltd. (Netanya, Israel) says these constraints include buses that: sacrifice data-rate to allow longer distance; use master/slave communications and numerous nodes to achieve determinism; or increase distance with costly fiber-optics and coaxial cable. To overcome these limits, SerCoNet recently introduced its 'BinderBus' architecture.

The firm reports BinderBus supports unlimited nodes distributed over an unlimited distance. Different topologies, like ring or trunk line with drops, can be chained together. The network can be configured as master/slave or peer-to-peer. There are built-in diagnostics and troubleshooting. The data rate is 1 to 5 Mbs over unshielded twisted pair (UTP) cable.

Node is the key

The key to BinderBus is its patented node, an all-in-one microcontroller, power supply, and network repeater. Inventor and company ceo, Yehuda Binder, says the most effective networks are based on point-to-point communications. BinderBus' basic principle is that each network segment connects only two nodes with the 22- to 26-AWG UTP carrying power and data. Nodes are connected to field devices. Each network segment is independent of the rest of the network. Since each node can be a power supply, overall network range is extended. Network protocol is TCP/IP modified to support determinism.

BinderBus nodes include a network's three necessary elements: transceiver chip set, data-link handling, and software driver. A node is slightly larger than a cigarette pack and can be DIN-rail mounted or integrated in devices.

Each node has three network interface ports connected only to another BinderBus node. Power input and output ports are included. There is an RS-232 port for PC or PLC connection. Eight programmable inputs and eight programmable outputs are programmable for discrete or analog (4-20 mA or 0-5 V dc). A plug-in interface port allows Ethernet, other buses, or video/audio to be added.

Bandwidth can be segmented into master/slave and peer-to-peer. Part of the network can be deterministic master/slave for control leaving the rest of the bandwidth for peer-to-peer data communications. The partition can vary from network to network, or within the same network at different times.

If a failure occurs, such as a short or open line, the network immediately determines its location for quicker repairs. Each node retains its I/O function control, and the network remains active in all nodes still connected. Short-circuit protection and EMF filters enhance network and data reliability.

Node numbers are assigned automatically. One node, preferably the one to which the programming platform (PC) is connected, is assigned number 128. The node connected to the left port recognizes its position and assigns itself address 127 and so on. Likewise, nodes connected to the right are assigned addresses in ascending order. Adding or removing nodes is immediately detected and their exact locations are identified.



BinderBus can connect different network types and topologies within its network architecture.

For more information, visit www.controleng.com/freeinfo .





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
The Engineering Leaders Under 40 program identifies and gives recognition to young engineers who...
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Salary and career survey: Benchmarks and advice; Designing controls; Remote data collection, historians; Control valve advances; Hannover Messe; Control Engineering International
System integration: Best practices and technologies to help; Virtualization virtues; Cyber security advice; Motor system efficiency, savings; Product exclusives; Road to Hannover
Collaborative robotics: How to improve safety, return on investment; Industrial Internet of Things, Industrie 4.0: World views; High-performance HMI, Information Integration: OPC and OMG
This article collection contains several articles on the Industrial Internet of Things (IIoT) and how it is transforming manufacturing.
PLCs, robots, and the quest for a single controller; how OEE is key to automation solutions.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Getting to the bottom of subsea repairs: Older pipelines need more attention, and operators need a repair strategy; OTC preview; Offshore production difficult - and crucial
Digital oilfields: Integrated HMI/SCADA systems enable smarter data acquisition; Real-world impact of simulation; Electric actuator technology prospers in production fields
Special report: U.S. natural gas; LNG transport technologies evolve to meet market demand; Understanding new methane regulations; Predictive maintenance for gas pipeline compressors
click me