Product category:
Plantwide control
News Release from: Emerson Process Management | Subject: Delta V v8.3
Edited by the Engineeringtalk Editorial
Team on 06 March 2006
Zones one and two remote I/O from
software release
Digital plant architecture software release includes zones one and two remote I/O and an energy limiting single port fibre optic switch for use in zone one areas.
Emerson Process Management has released Delta V v8.3, a component of the firm's Plantweb digital plant architecture The release includes zones one and two remote I/O and an energy limiting single port fibre optic switch for use in zone one areas
The remote I/O has been designed to reduce life cycle costs, and the switch permits fibre optic cable to be used in zone one without protective sheathing, reducing installation costs.
The zone two remote I/O scanner addresses up to eight discrete or analogue I/O cards which can be targeted to one of four controllers for additional flexibility.
The zone one scanner works with up to four intrinsically safe I/O cards that have inputs and outputs on each card.
A Delta V system can have up to 60 remote I/O scanners, and any controller can have up to 16 modules associated with it.
Analogue I/O cards are all equipped with full Hart communications pass-through capability.
Foundation Fieldbus cards are scheduled for release later.
Communications between remote I/O and controllers is via standard redundant Ethernet communications.
The new I/O modules are designed to enable replacement of separate I/O cards in the field without shutting down the module.
The zone one I/O is equipped with two certified energy-limiting fibre optic communications ports.
Its approach to intrinsic safety involves a combination of safety technologies for added security.
Time stamping and control strategies are maintained in the controllers.
The Zone two I/O scanners are marine certified making them suitable for offshore oil and gas production platforms and FPSOs.
Fibre optic cables are often used to route safely Ethernet through zone one or class one, division two plant areas.
Because a broken fibre optic cable can carry enough energy to cause a spark, they are often housed in a conduit or protective sheath.
This adds to installation costs.
The fibre optic switch limits the energy in the cable so they can be run without additional protection.
Din rail mounted, the switch is certified by Kema to limit the energy in the cable so that a potential cable break is safe in zone one or class one, division two environments.
The 24V DC powered switch is equipped with a single fibre optic port, and four 10/100Mbyte TX Ethernet connections.
The port can be used with the Delta V zone one I/O scanner and can be used independently of the Delta V system to route Ethernet safely through zone one or class one, division two areas.
The fibre optic switch is designed to the same G3 environmental specs as the Delta V product so it can be mounted in zone two or class one, division two environments.
Since it doesn't use the Delta V backplane, pairs of these switches can be used wherever fibre optic cable needs to be routed to or through zone one or class one, division two locations.
"The goal for our new remote I/O scanners is to drive down our customers total life cycle costs, ensuring easy installation and maintenance," said Thomas Steiner, Marketing Manager of Delta V.
"Our I/O modules are plug and play, requiring no dip switch settings or user configuration effort".
"The I/O can connect with different controllers on the control network".
"This product was developed to reduce the cost of installing fibre optic cabling in our customers' zone one areas".
"This is the first of a family of similar fibre optic products that will address zone one or class one, division two issues".
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