Product category:
Data loggers
News Release from: Omniflex (UK) | Subject: Maxiflex 1000 Series Hart NIM
Edited by the Engineeringtalk Editorial
Team on 07 April 2003
Acquisition system takes on Hart-enabled
devices
Omniflex Automation Products has released a Hart network interface module for its highly successful Maxiflex 1000 Series data acquisition system.
Omniflex Automation Products has released a Hart network interface module (NIM) for its highly successful Maxiflex 1000 Series data acquisition system This dual Hart port device can connect to up to 30 Hart-enabled devices, making it ideal for the data acquisition environment
This article was originally published on Engineeringtalk on 24 Apr 2007 at 8.00am (UK)
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Generally tanks are located some distance away from the monitoring/pump stations out of necessity and running of many current loops back to the monitoring point is expensive.
All Hart facilities are available to the supervisory system as well as the status of the level.
Using Maxiflex with its Conet local area network which allows distances up to 10km on a screened twisted pair, a tank farm's levels can be collected and transmitted back to the supervisory system.
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Tank farm collection points using a Maxiflex LAN node may also be multidropped on the same twisted pair.
Each Maxiflex Node may contain 15 Hart NIMs giving a capacity of 450 Hart devices, with a possible 126 Maxiflex nodes on the twisted pair giving a Conet network capacity of more than 56000 Hart devices.
The Maxiflex Hart NIM differs from other Hart monitoring data acquisition systems in that it does not multiplex the signals.
Each Hart device is constantly online to the Hart NIM, thus the speed of data acquisition is much faster.
The Hart NIM also supports bidirection communication so the supervisory system may execute control outputs or write to the Hart devices.
Maxiflex allows the implementation of complex star and bus topologies which adapts to the particular plant layout requirements.
Multiple Conet networks on existing plant cable can radiate out from the supervisory centre, each supporting as many Maxiflex nodes daisychained on the same cable as required.
Maxiflex has adopted the philosophy that for data acquisition or telemetry no application program is required.
A simple Windows configuration package (OmniSet) is all that is required to configure the application.
This makes its extremely quick to install and commission with the obvious benefit to the Scada environment.
Later additions to the system are simple, making system expansion very flexible.
Maxiflex and Conet enable tank farm monitoring of Hart-enabled level transmitters to be easily implemented on existing plant cabling.
The Hart NIMs allow all the Hart data to be accessed by a Scada or supervisory system offering enhanced capabilities to the plant users for data acquisition, field calibration, system diagnostics etc.
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