Product category:
Electrical systems
News Release from: Hayes Control Systems | Subject: Bus couplers and bus terminal modules
Edited by the Manufacturingtalk Editorial
Team on 21 September 2001
Couplers and terminals expand fieldbus
versatility
The introduction of Economy Plus bus couplers, and a new Bus Terminal Extension module means that the Beckhoff protocol-independent fieldbus system from Hayes Control Systems is more versatile.
The introduction of a new range of Economy Plus bus couplers, and a new Bus Terminal Extension module means that the popular Beckhoff protocol-independent fieldbus system from Hayes Control Systems is now even more versatile and cost-effective In the Beckhoff system, bus couplers provide the link between the controller and I/O terminals, which can be supplied in versions to suit virtually every digital and analogue requirement
This article was originally published on Manufacturingtalk on 9 Jan 2001 at 8.00am (UK)
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The new Economy Plus bus couplers are optimised for industrial applications, where they offer substantial cost savings compared with previously available products, and they are available to suit most popular fieldbus protocols, including Profibus DP, Interbus, DeviceNet and Beckhoff's own high-performance fibre-optic based Lightbus.
Each Economy Plus bus coupler can directly support up to 64 I/O terminals, each with two or four I/O channels.
By using the new Bus Terminal Extension module, however, this capacity is easily and economically expanded to 255 I/O modules.
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This means that a single, inexpensive bus coupler can support up to 1020 digital I/O and, depending on the fieldbus protocol in use, up to 256 analogue I/O.
Bus Terminal Extension modules also allow the I/O terminals associated with a single bus coupler to be divided into a maximum of 31 separate physical groups, with the groups located up to 5 metres apart.
Since the connections between the groups are made with readily available low-cost Ethernet cable and RJ45 connectors, such an arrangement, in many applications, offers an attractive and very economical method of providing distributed I/O over distances of up to 155 metres.
To ensure easy application programming, the operation of the Bus Terminal Extension modules is completely transparent to the user.
Irrespective of their physical location, all I/O terminals connected to a particular bus coupler are treated as a single unit for addressing purposes.
Hayes Control Systems is the leading UK expert in the design and supply of complete automation solutions based on open-architecture PC technology.
The company is the exclusive UK distributor for Beckhoff in Germany, whose products include fieldbus-independent input/output systems, industrial PCs, and soft programmable controllers which use standard PC hardware, and which can also provide sophisticated motion control functions.
In all of its product areas, Hayes Control Systems champions an open-systems approach which avoids the technical limitations, high costs and restricted availability associated with proprietary equipment.
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