ciu plus & ciu prime

8/13/2019 Ciu Plus & Ciu Prime

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CIU Pr ime & CIU Plus

C o m m u n i c a t i o n I n t e r f a c e U n i t s


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The Tank Gauging People

COMMUNICATION INTERFACE UNITS

Tank inventory information in liquid storage

terminal and refinery automation is increasinglycritical for operational and environmental reasons.The primary requirement is high reliability anduninterrupted availability of data. Enraf offers fastdata access for environmentally conscious operationof liquid bulk storage sites.

In the past it was quite normal to run all functionslike data acquisition, data processing, alarm-handling and communication to third party systemsvia the same Tank Inventory Management System onone PC. All these functions, together with thedemanding graphical display requirements, limitedthe speed and efficiency of information availability.

The unique Enraf Three layer concept

To create an open system and to improve the dataavailability and easy interfacing, the tasks have beenseparated into three layers including:

The primary layer - CIU PrimeThe extensive real-time data scanning andacquisition tasks now runs in the CIU Prime.

In this way time critical scanning can run smoothlywithout delay. Concurrent polling and parallelprocessing of the field data guarantees datathroughput independent of the PC activities.

The secondary layer - CIU PlusThe complex and specialized real-time inventorycalculations now run independently in the CIU Plus.This guarantees fast availability of inventoryinformation.

The top layer - Entis ProTodays Tank gauging systems are required to

provide a Windows NT based Graphic UserInterface (GUI). Entis Pro creates clear and detailedgraphical displays of tank inventory data.Kernel activities, like hard disk and network accessand the increased number of graphical tasks,run smoothly. For detailed information see ourEntis Pro brochure.

Time synchronization is one of the manynew features

CIU Prime and CIU Plus features

19" Rack mounting Wall mounting Table top model Hinged cover for service

Sealing facilities Configurable connections

Full Year 2000 compliance

Of course the CIUs are fully Year 2000 compliant.The internal hardware clock, used for time stampingall field data in the database, supports the full dateand time format. Any PLC or DCS can synchronizedate and time via either one of the host ports.

Time synchronization

Automatic and transparent time synchronizationover the whole system (Entis Pro, CIU Plus &CIU Prime) is an important new feature.

Rugged and reliable

The use of dedicated hardware, without cooling fansand spinning hard disks, assures a reliable operation.Continuous recalculation of all inventory data andflow rates in synchronous data sets on a per tankbasis prevents potentially misleading and out ofphase data presentation.

CIU Prime andCIU Plus

(rack mounted)


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From FIELD DATA to MANAGEMENT INFORMATION

CIU Plus

CIU Prime

2 Field ports CIU Prime (Full redundancy)

2 Host ports PLC DCS MODBUS CIU Plus

Information Level Available data

Communication Protocol

Management information All data from plant control for

management

Plant control All data from Entis Pro

Inventory ManagementSystem All data from CIU Plus Inventory presentation and

reporting Alarm handling Trending and logging Hot standby management

Calculated Data All data from CIU Prime Volume calculations Mass calculations Flow rate

Collected Field Data Level Temperature Pressure Observed/dipped density Alarm status Interface/water level(s) Vapor temperature Vapor pressure

Gauge status

Field Data from SmartRadar Level Gauges Advanced Servo Tank Gauges HTG HIMS

Up to 50 field instrumentsinputs EN Fieldbus RS232C / RS485 CIU (series 858) Converted Microlect

Up to 4 host ports SCADA PLC MODBUS DCS Entis Pro

Host protocol Open connectivity

ODBC/5QL Enraf 45 E host protocol

OLE automation

Communication guarding Watchdog Host reset relays (CIU Plus)Service Configuration Gauge commands


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CIU Prime

The CIU Prime is the interface between the fieldinstruments (tank gauging instruments) and thecontrol room. Up to 50 tanks can be connected toa single CIU Prime.

Main task

The new CIU Prime offers the ideal tank scanningand data acquisition unit for all tanks in bothstorage terminals and refineries.All measured field data from the connected gaugeswill be scanned continuously.

For this task, the CIU Prime can be equipped with amaximum of four Field ports. Each of these boardshas its own processor and interface to field wiring.Parallel operation of these processors allowsconcurrent scanning to achieve a very high updaterate of the field database.

All scanned data is stored in a local real-timedatabase for access by higher level computerizedsystems. Separate boards are available forinterfacing to various physical layers.

Interface (in)

Boards are available for connecting directly to theEnraf tank gauge range via the Enraf Fieldbus:serial ASCII coded, Bi-Phase Mark modulated (BPM).

Interfacing for third party tank gauging systems willbecome available in the future.

Connectivity with existing Enraf inventory

systems

An RS-232C / RS-485 input board and CIU emulationallows connectivity to existing Entis+ and Microlecttank inventory systems

Interface (out)

The CIU Prime offers two completely independentHost Ports for connectivity to Programmable LogicControllers (PLCs), Distributed Control Systems (DCS)or Enrafs CIU Plus.The communication is standardized on MODBUSwith a fully memory mapped configuration.

PLC connectivity

The PLC interfacing capabilities makes the CIU Primeideal for very high reliability in alarm processing.

In older tank gauging systems, all alarm processingwas done at one of the higher system levels, with alower inherent reliability. It is now possible to linkhardware alarms directly to the unit scanning alltank data. Any PLC can retrieve all primary measureddata via MODBUS and compare them with own setpoints to generate alarms on pre-programmedconditions.

Independent alarm functionality hasfinally become reality

Connectivity

Connectivity is a prime requirement for any newtank gauging system. The use of the worldwideknown MODBUS standard for communicationguarantees compatibility with your system.

Dual host connections allow a simultaneousconnection for local or remote service via a modem.Support of programmable modem initializationstrings even allows for automatic dial-in and connectat start-up.

Nerefco


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The Primary Layer

Enraf offers a quantum leap forwardwith the CIU Prime, CIU Plus andWindows NT based Entis Pro.

This is a totally new concept based onthe field proven Enraf CIU (858 series)and developed with more than 50 yearsexperience in Tank Gauging.

The CIU Prime is ideal for interfacing toany PLC, DCS or SCADA system

IntelligentManagement

SystemEntis Pro

Supervisory ControlAnd Data Acquisition

(SCADA)

Distributed Controland Supervision

(DCS)

Programmable LogicController

(PLC)

CIU Plus

CIU Prime


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CIU Plus

The CIU Plus is a standalone inventory calculation unit, for use in combination with the CIU Prime.

Tank inventory of up to 50 tanks can be monitored by a single CIU Plus.

Main task

The main task includes inventory calculation of volumes (TOV, GOV, GSV, NSV), flow rate and mass (both totalmass and vapor mass if applicable) using the appropriate formulas according to the international standards ofAPI and ASTM.

Any Distributed Control System (DCS )or Supervisory Control And Data Acquisition (SCADA) system caninterface to a CIU Plus and retrieve all inventory data of all 50 tanks. Host communication is fully standardizedon MODBUS with a memory mapped configuration per port.

Hot standby & Redundancy

Both CIU Prime and CIU Plus are completely prepared for hot standby & redundant operation. In a redundantconfiguration, secondary communication links or even hot standby CIUs optimize availability and routing oftank inventory data. Redundancy can be constructed at any or all of the CIU levels.

Full redundancy


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The Secondary Layer

Interface (in)

The CIU Plus has standard two Field ports for

interfacing to one or more CIU Primes. The serial linkbetween the CIU Plus and the CIU Prime can consistof a simple null-modem connection, but can alsomake use of line-drivers, long haul or dial-in, or evenfiber optic modems.This flexibility makes it possible to install CIU Plusand CIU Prime at separate locations, which is idealfor connecting to off-site tanks or pump controlrooms.

Interface (out)

The CIU Plus can be equipped with a maximum offour RS-232C / RS-485 output boards. Each of theseboards has its own processor and offers trulyindependent host communication. Parallel processingof these processors allows high Baud-rates of up to38k4 baud.

Designed for the future

The new CIU Plus offers the ideal tank calculationunit both for terminals and refineries. Connected to

a CIU Prime, it offers the superior solution for allmodern tank inventory applications.

Connectivity

Enraf has given extra attention to provide a high

level of connectivity to the CIU Plus. The unit isequipped with up to four host connections allowingsimultaneous connection to PLC, DCS or SCADAsystems. Also, remote service communication via amodem allows configuration and diagnostic support.Programmable modem initialization strings allowautomatic dial-in and connect capability.

The use of the worldwide known MODBUS standardfor communication guarantees compatibility withyour system.

The CIU Plus is ideal for interfacing toany PLC, DCS or SCADA system

Safeguarding the host link

An external watchdog capability is available viarelays (per host port) that are activated when a host

link failure is detected by the CIU Plus.

Easy configuration with Ensite Pro

Configuration of the CIU Plus is simple andstraightforward with the Ensite Pro program.Ensite Pro is a Windows based service utility,

which can be used for local or remote configurationand diagnostics of CIUs and all connected gauges.

Ensite Pro


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heTankGaugin

gPeople

Enraf B.V.Rntgenweg 1, 2624 BD Delft, The NetherlandsP.O. Box 812, 2600 AV Delft, The Netherlands

Tel.: +31 (0)15 269 86 00, Fax: +31 (0)15 261 95 74Email: [email protected]://www.enraf.com

China: Enraf B.V. (Shanghai Rep. Office)# 18-01, Suncome Liauw's Plaza,738 Shangchen Road, Pudong, Shanghai 200120Tel.: +86 21 58311611, Fax: +86 21 58313011

France: ENRAF S.a.r.l.ZAC Les Beaudottes, 15 rue Paul Langevin,

93270 SEVRANTel.: +33 (0)1 49 36 20 80, Fax: +33 (0)1 43 85 26 48

Germany: Enraf GmbHObere Dammstrasse 10, 42653 SolingenPostfach 101023, 42648 SolingenTel.: +49 (0)212 58 750, Fax: +49 (0)212 58 7549

Singapore: Enraf B.V. (Singapore Rep. Office)Lam Soon Industrial Building63 Hillview Avenue, # 05 - 03, Singapore 669569Tel.: +65 76 94 857, Fax: +65 76 94 348

United Kingdom: Enraf Ltd.Unit 11, Sandridge Park, Porters WoodSt. Albans, Herts AL3 6PHTel.: +44 (0)1 727 843 376, Fax: +44 (0)1 727 842 185

USA: ENRAF Inc.500 Century Plaza Drive, Suite 120Houston, Texas 77073Tel.: +1 281 443 4291, Fax: +1 281 443 6776

Russia: Enraf B.V. (Moscow Rep. Office)c/o Nucletron - Oldelft2nd Donskoy Proezd, Building 6/4117071 MoscowTel.: +7 095 935 7877. Fax: +7 095 935 7877

vW-IN-4416.166-V1

ciu plus & ciu prime

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