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Communication Interface Unit (CIU888)

Brand: Honeywell Process Solutions
Tank farm operators rely heavily on their tank gauging and inventory monitoring systems. Honeywell’s communication interface, CIU 888, ensures the availability of accurate and reliable tank measurement and calculated inventory data to drive safety and efficiency in every tank farm application.

What is It?
The CIU 888 is a safe and reliable gateway between tank gauges and operational systems that manage inventories at bulk storage tank farms. It ensures reliable tank and product data is easily available to multiple users and that the right data is delivered to each user according to their task. Convenient tools promote the highest efficiency during commissioning and remote servicing of tank farm gauges. Compliance with relevant standards and legislation, meanwhile, is confirmed by authorities such as the Dutch NMI.

With the CIU 888, all measured and calculated data is continuously available for efficient operations, safe control of product movements and support for custody transfer and Weights and Measures (W&M) report printing.

How Does It Work?
CIU 888 integrates the field-proven concepts of Honeywell's CIU 880 solution into a single unit and takes data availability to the next level. All relevant tank parameters are continuously scanned and embedded tank
calculations provide tank inventory data according to API/ASTM standards. Traditional serial interfaces support existing applications without any change, while dedicated Ethernet connections provide open access. Furthermore, intelligent security measures prevent unauthorized access and loss of data.

The improved redundancy concept in the CIU 888, with continuously synchronized units, prevents process disruption, while guarding and maintaining the status and validity of data for W&M purposes. A smart user-concept includes a “Ring of Light” with an integrated LCD for a quick status overview. More detailed Web-based information is accessible remotely, supporting fast analysis and reducing service time.
Features
  • Maximizing uptime and improving site safety and efficiency
  • Lowering the cost of ownership
  • Enhancing operator effectiveness through alarm management, clear displays and convenient tools
  • Meeting demands for expansions and future system requirements with a scalable solution
  • Ensuring compliance with API/ASTM standards and Weights & Measures legislation.
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Tank farm operators rely heavily on their tank gauging and inventory monitoring systems. Honeywell’s communication interface, CIU 888, ensures the availability of accurate and reliable tank measurement and calculated inventory data to drive safety and efficiency in every tank farm application.

What is It?
The CIU 888 is a safe and reliable gateway between tank gauges and operational systems that manage inventories at bulk storage tank farms. It ensures reliable tank and product data is easily available to multiple users and that the right data is delivered to each user according to their task. Convenient tools promote the highest efficiency during commissioning and remote servicing of tank farm gauges. Compliance with relevant standards and legislation, meanwhile, is confirmed by authorities such as the Dutch NMI.

With the CIU 888, all measured and calculated data is continuously available for efficient operations, safe control of product movements and support for custody transfer and Weights and Measures (W&M) report printing.

How Does It Work?
CIU 888 integrates the field-proven concepts of Honeywell's CIU 880 solution into a single unit and takes data availability to the next level. All relevant tank parameters are continuously scanned and embedded tank
calculations provide tank inventory data according to API/ASTM standards. Traditional serial interfaces support existing applications without any change, while dedicated Ethernet connections provide open access. Furthermore, intelligent security measures prevent unauthorized access and loss of data.

The improved redundancy concept in the CIU 888, with continuously synchronized units, prevents process disruption, while guarding and maintaining the status and validity of data for W&M purposes. A smart user-concept includes a “Ring of Light” with an integrated LCD for a quick status overview. More detailed Web-based information is accessible remotely, supporting fast analysis and reducing service time.
Features
  • Maximizing uptime and improving site safety and efficiency
  • Lowering the cost of ownership
  • Enhancing operator effectiveness through alarm management, clear displays and convenient tools
  • Meeting demands for expansions and future system requirements with a scalable solution
  • Ensuring compliance with API/ASTM standards and Weights & Measures legislation.

Specifications

Description

  • Field scanning and communication interface for tank inventory applications with optional embedded tank inventory calculation functionality.

Application

  • For all applications requiring accurate and reliable process and inventory data, such as refineries, tank farms and terminals. Data is suitable for custody transfer, safe product transfer and tank farm operation

Intended Use

  • Control room equipment

Legal Metrology and Custody Transfer

  • Compliant to API-standards as stated by approval and certification by notified bodies as NMI.

Tank Database

  • 80 tanks (one gauge per tank) 40 tanks (two gauges per tank)

Redundancy

  • Hot standby, real-time synchronization (redundancy controlled by Entis Pro, ENTIS or modbus host)

Supported Gauge Models

  • All GPU enabled tank gauges (such as 811, 813, 866, 854, 872, 873, 877, 894 , 990, 954) & Emerson TRL/2

Gauge Commands

  • • Lock test • Unlock • Block • Freeze • Calibrate (854, 894) • Density dip • Alarm test (SmartRadar) • Water dip • Density profile

Tank Scanning

  • 6 field ports sequential and/or parallel, refresh rate 2-4 sec.

Inventory Calculations

  • Conform API MPMS Ch. 12.1

Tank Capacity Tables (strapping tables)

  • Up to 5000 straps per tank, 400000 straps total

Support API/ASTM Product Calculations

  • ASTM D1250-80; conform Vol. X—Tables, 5, 6, 23, 24, 53, 54, 59, 60 and 59, 60 Commodities   Product groups A, B, C & D
  • API MPMS Ch. 11.1 (2007; adj. to ASTM D1250-04 and IP-200)—Tables, 5, 6, 23, 24, 53, 54, 59, 60 and 59, 60;   Product groups A, B, C, D
  • API MPMS Ch. 11.2.4 (GPA TP-27)—Tables, 5, 6, 23, 24, 53, 54, 59, 60 and 59, 60; Product group E
  • ASTM D4311-83—Tables 1 and 2
  • ASTM D4311-96—Table 1
  • ASTM D4311-04—Tables 1 and 2
  • ASTM D4311-15
  • ASTM D4311M-15
  • ASTM D1555-16
  • ASTM D1555M-16

Support Other Product Calculations

  • EN15940-19 (Hydrogenated Vegetable Oil)
  • SGS-21 (Ammonia)
  • NBR15639-16 (Ethanol / Alcohol)
  • User configurable density table
  • User configurable CTL table
  • User configurable concentration table

Modbus TCP/IP and / or OPC UA TCP

  • EN15940-19 (Hydrogenated Vegetable Oil)
  • SGS-21 (Ammonia)
  • NBR15639-16 (Ethanol / Alcohol)
  • User configurable density table
  • User configurable CTL table
  • User configurable concentration table

Available Gauge Data

  • • Product level • Gauge status and alarms • Product temperature • Vapor temperature • Vapor pressure • Ambient temperature • Water level • Observed density (Servo, HTG, HIMS) • Temperature Profiles • Density Profiles • Product pressure • Floating roof levels

Available (Calculated) Inventory Data

  • Volume (TOV, GOV, GSV, NSV)
  • Mass (Liquid, vapor, total)
  • Reference density
  • Volume correction factor (VCF, CTL)
  • S&W, Vapor (4 types), DCF, TCF, manual CTL
  • Volume derived flow

Clock & Time Synchronization

  • External using Entis Pro, ENTIS or Modbus host systems such as DCS

Supported Engineering Units

  • Level m, mm, ft, in, in/16 and ft-in-16 (fis)
  • Temperature °C, °F
  • Density kg/m3, °API, lb/ft3, RD60, lb/USgal
  • Pressure kgf/cm2, kPa, psi(g), Pa
  • Volume m3, USgal, bbl, l(L)
  • Mass/Weight kg, lb, metric ton, long ton, US ton
  • Flow m3/min, m3/h, l/min, bbl/min, bbl/h, USgal/min, USgal/h, UKgal/h

Available Tank Correction Methods

  • CTSh3 • Floating Roof Weight • Temperature GRH • Pressure GRH • Servo Wire correction • Floating Roof Immersion Compensation (RIC)

Temperature and Density Profiles

  • Temperature profiles - Periodic scanning of temperature profiles data up to 16 points from BPM and TRL/2 gauges and presentation in Modbus output (RTU and TCP/IP) and OPC UA TCP output based on configuration.
  • Density profiles - Density profiles data collection up to 50 density points from Honeywell Servo gauges and presentation in Modbus output and OPC UA TCP output based on user command.

Serial Ports

  • 2x modbus serial (+ 4 additional ports by using optional slots)

Supported Host Protocols

  • Serial modbus (Slave) • CIU 858 emulation • CIU 880 Prime/Plus emulation (serial modbus)

Ethernet/LAN

  • 3x Modbus TCP/IP and / or OPC UA TCP ethernet (FTEA, FTEB and Office LAN)

Field Ports

  • 6x option slots (of which 4 ports can be used for serial host connectivity)

Wireless Connectivity

  • ISA 100 via Honeywell WDM

Available Option Boards

  • Enraf BPM fieldbus, Serial modbus (master) and Serial GPU input and TRL/2 Fieldbus

Electrical Safety

  • IEC 61010-1:2010 (3rd edition)
  • EN 61010-1:2010

European Directives

  • CE: • 2006/95/EC (Low voltage directive) • 2004/108/EC (EMC) • CAN/CSA C22.2 No. 61010-1-12 • UL Std. No. 61010-1 (3rd Edition)

Self Monitoring & Diagnostics

  • Designed for compliance with NAMUR NE 107

Legal Metrology (Weight & Measures)

  • NMI - Netherlands

Physical Layer

  • 2-wire Bi-phase mark modulated (MIL-STD-1553)

Supported Protocol(s)

  • Enraf BPM

Typical No. Field Devices

  • 10-15, depending on cable spec and length

Baud Rate

  • 1200/2400/4800 Baud

Distance

  • 10 km or more depending on cable characteristics

Cable Characteristics

  • 1 uF/200 Ohm max

Type of Galvanic Isolation

  • Transformer coupled with ground shield

Galvanic Isolation

  • 1500 V