Endress+Hauser NXA822, NXA820 Data sheet

TI00419G/00/EN/18.18
71425700
2018-12-28

Products

Solutions Services

Technical Information

Tankvision NXA820, NXA821,
NXA822

Tank Gauging

Inventory Management System with completely
integrated software for operation via standard web
browser

Application

Tankvision is a dedicated tank inventory system which is operated by a standard web
browser and does not require proprietary software or licensing costs.

Tankvision is based on a distributed architecture on a Local Area Network (LAN).
Due to its modular structure it can be adjusted to any application. It is ideally suited
for small tank farms with only a couple of tanks, but also for large refineries with
hundreds of tanks.

Tankvision consists of the following components:

• Tankvision Tank Scanner NXA820
scans parameters from tank gauges and performs tank calculations (option)

• Tankvision Data Concentrator NXA821
summarizes data from various Tank Scanners NXA820

• Tankvision Host Link NXA822
provides data to host systems (such as PLC or DCS) via Modbus

Your benefits

• License-free, with access for up to 10 users

• Approved for custody transfer applications according to NMI, PTB and others

• Modular design; easily adjustable to any application; can be upgraded as required

• Configuration, commissioning and operation via web browser; no proprietary
software required

• Common hardware platform for all components; no hard disc or fans to wear out

• Volume calculations and correction included according to international standards
(API/ASTM/IP tables) in Tank Scanner NXA820 (optional)

• Includes OPC Data Access server for Windows PC

Table of contents

Tankvision NXA820, NXA821, NXA822

Applications ............................... 3

Inventory control .............................. 3

Inventory calculations (option) .................... 3

Remote configuration of measuring equipment .......... 3

Application areas ............................. 3

Function and system design ................... 3

System design ................................ 3

System configuration ........................... 5

Features ................................... 5

Security .................................... 6

Typical system configuration .................. 7

Wiring example for NXA820/821/822 ............... 7

Wiring example for NXA820 "Interface only" ........... 8

Wiring examples for a wireless connection of NXA820 ..... 8

Function of the components ................... 9

Tankvision Tank Scanner NXA820 .................. 9

System limitations ............................. 9

Tankvision OPC Server ......................... 10

Tankvision Alarm Pop-Up-Agent .................. 10

Tankvision Printer Agent ....................... 10

Tankvision Data Concentrator NXA821 .............. 10

Tankvision Host Link NXA822 .................... 11

NXA820 "Interface only" ........................ 11

Ordering information ....................... 15

Operability ............................... 15

Operating concept ............................ 15

Languages ................................. 15

Certificates and approvals ................... 15

Metrological approvals ......................... 15

Supplementary documentation ............... 16

Operating Instructions ......................... 16

Description of Instrument Functions ................ 16

Registered trademarks ...................... 16

Microsoft Corporation ......................... 16

Schneider Electric ............................ 16

Oracle Corporation ........................... 16

Legal notice concerning trademarks ................ 17

Inputs and outputs ......................... 11

Galvanic isolation ............................ 11

LAN connections ............................ 11

Fieldbus protocols (NXA820) ..................... 12

Host connection (NXA822) ...................... 12

NXA Status Relay ............................ 12

Power supply ............................. 12

Power supply NXA 82x ........................ 12

Installation ............................... 12

Mounting location ............................ 13

Installation instructions ........................ 13

System requirements of user PC ................... 13

Network requirements ......................... 13

Shielding and Grounding ....................... 13

Environment .............................. 14

Ambient temperature range ..................... 14

Storage temperature .......................... 14

Humidity .................................. 14

Operating height ............................. 14

Degree of protection .......................... 14

Electromagnetic compatibility (EMC) ............... 14

Mechanical construction .................... 14

Dimensions ................................ 14

Materials .................................. 14

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Tankvision NXA820, NXA821, NXA822

Applications

Inventory control

Inventory calculations (option)

By using Tankvision to monitor the tank level and stored volume of valuable liquids remotely,
owners or operators of tank farms or terminals for petroleum products and chemicals (liquids) can
visualize the volume of the stored medium in real time. The data can be used to plan the inventory
and distribution. The data can also be used to manage tank farm operations like pumping or
transferring products.

Tankvision has its unique concept using network technology. Without using proprietary software,
the users can visualize and manage their valuable liquids stored in the tanks by a web browser.
Tankvision is a flexible and cost effective solution due to its scalable architecture. The application
coverage goes from small depots with only a few tanks up to refineries.

Choosing the "Interface only" option in Tank Scanner it becomes a fit-for-purpose interface unit to
the tank gauges for Tankvision Professional.

Based on measured variables and tank capacity tables, Tankvision calculates:

• Gross volumes

• Net volumes

• Mass
Volumes and density of products like the following are processed:

• Hydrocarbons

• LPGs

• Asphalt

• Alcohols
Volumes and density are corrected according to international standards, including API/ASTM tables

5A, 5B/6, 53A, 53B/54, 23/24, LPG according to tables GPA TP-25 Table 24E, GPA TP-27 Table
24E, GPA TP-27 Table 54E, GPA TP-27 Table 60E, M B & Redwood VCF, alcoholometric tables
according to OIML R22 tables I, II, IIIA, IVA, VI, VII. This includes temperature corrections at 15 °C,
60 °F and alternative temperatures. Additionally, available pumpable volumes and water volume are
calculated.

Up to 200000 strapping points in sum over all tanks are supported for vertical, spherical and bullet
tanks.

More standards are added continuously. Please ask Endress+Hauser for an updated list.

Remote configuration of measuring equipment

Application areas

Tankvision does not only acquire the current measured level or volume from the tanks. The
configuration of device settings from the control room is also possible by using FieldCare, the
operating software from Endress+Hauser, for the connected Endress+Hauser devices. Tankvision
passes on the device setting information transparently, so that all device functions for the respective
operating software are available from the control room. Some on-site operations can be avoided
using this feature during commissioning or maintenance. (The availability of this feature may
depend on the system configuration.)

• Tank farms in refineries

• Ship loading terminals

• Marketing and distribution terminals

• Pipeline terminals

• Logistic terminals for tanks storing products like crude oils, refined white and black products,
chemicals, LPGs, fuels, biofuels, alcohols

Function and system design

System design Tank management visualization without proprietary software

Tankvision is the first tank management visualization system providing its functionality without the
need to have proprietary software installed and maintained on a PC. The main functionality is
realized by embedded web pages in the Tankvision components. Tankvision uses an industrial
proven operating system and provides high availability. Tankvision is not based on a PC platform and
runs independent of connected PCs. This eliminates the need to maintain a specialized PC with a
Windows operating system and necessary updates and hot fixes. Tankvision web pages can be

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Tankvision NXA820, NXA821, NXA822

accessed from a standard PC with a web browser and the Java Runtime Environment only. Multiple
users with different roles can simultaneously log in to each Tankvision component. Additional users
can be added as required. There are no multi-user licence fees.

Please check with Endress+Hauser for recommendations on PC, operating system and web browser.

Examples of operating pages

Tank group

1 Alarms and events viewer
2 Main window
3 Navigation tree
4 Internet Explorer menu and symbol bar

Single tank

1 Alarms and events viewer
2 Main window
3 Navigation tree

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Tankvision NXA820, NXA821, NXA822

Distributed architecture and scalability

Tankvision is based on a distributed architecture on a Local Area Network (LAN). Coordinated
components perform all inventory management tasks. The modular design makes it easy to enlarge
the system whenever required and to add further tank areas. Thus, Tankvision is fully scalable and is
ideally suited for applications of any size - from small tank farms to large refineries.

Common hardware platform

Tankvision is based on a distributed architecture on a Local Area Network (LAN). Coordinated
components perform all inventory management tasks. The modular design makes it easy to enlarge
the system whenever required and to add further tank areas. Thus, Tankvision is fully scalable and is
ideally suited for applications of any size - from small tank farms to large refineries.

The Tankvision components have dedicated tasks in a system, but have a common architecture,
based on a 32 Bit processor. The embedded tank management software uses a multi-threaded real
time operating system (RTOS), specifically designed for industrial applications. The hardware is
designed without wear-out components like hard discs or fans. This guarantees high reliability.

System configuration Configuration of the components

Each Tankvision component has its own data base and a web server. The components are connected
and exchange data with time stamp and status information. Data is optionally encrypted and secured
by a CRC checksum.

The Tankvision components are configured with static IP addresses, which are reserved on a DHCP
network.

The configuration pages are embedded in the Tankvision components and allow configuration of
Tankvision via a connected web browser without configuration software. No Internet access is
necessary, as all pages are loaded from the Tankvision system itself.

Features

Configuration of the connected tank gauges/sensors

Tankvision supports connection of the Endress+Hauser configuration tool, FieldCare, via LAN. This
enables configuration of the tank gauges if they support remote configuration (e.g. Proservo, Tank
Side Monitor and the level radars Micropilot S and Micropilot).

The tank gauges must be connected to the Tank Scanner NXA820 in one of the following ways:

• via a field protocol

• via HART to the Tank Side Monitor NRF590 (version 02.04) which in turn is connected via one of
the following protocols to the Tank Scanner NXA820:
– MODBUS
– Sakura V1

• Representation of tank data
Tank data can be represented graphically or in tables. The corresponding HTML pages are
predefined.

• Definition and management of tank groups
The total contents of static or dynamic tank groups (e.g. of tanks containing the same product) can
be displayed.

• Definition and management of products
Product characteristics can be defined. The defined product can be attributed to a number of tanks.

• Trend display
Real time and historical trends of the tank parameters can be displayed. The data is stored in the
internal memory.

• Archive
Tankvision stores measured and calculated data, log files and alarms on the internal flash
memory.

• Alarms
Limit alarms (high-high, high, low, low-low) can be defined for measured and calculated tank
parameters. An alarm bar visualizes alarms in the browser window.
Alarms can be reported by an optional Alarm Popup

1)

window.

• Products
A product database allows definition of 50 products per NXA or shared in the system.

1) available for Windows on the device to upload

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• Monitoring of transfers
Product transfers from and to tanks can be monitored. Pre-alarms can be generated before
completion of the transfer. A report is issued after the transfer.

• Auditing
An auditing table contains all events such as alarms or configuration changes.

• Log-In roles
Log-In roles with different access rights (supervisor, operator, guest) can be assigned to users and
user groups.

• Reports
Reports are predefined as HTML pages. They can be sent to a printer connected to a computer at
scheduled time intervals by an optional Printer Agent

• Volume calculation and correction
Available calculation tables according to API, ASTM and IP can be integrated.

• Graphical User Interface (GUI)
Tankvision uses an intuitive and optimized user interface (e.g. automatic creation of dynamic tank
groups).

• Remote access
Any PC with the specified requirements which is connected to the Intranet can be connected with
Tankvision.

• OPC Server
Data can be transferred to other systems using the open OPC standard (OPC DA 3.0).

Security IT security

We only provide a warranty if the device is installed and used as described in the Operating
Instructions. The device is equipped with security mechanisms to protect it against any inadvertent
changes to the device settings.

IT security measures in line with operators' security standards and designed to provide additional
protection for the device and device data transfer must be implemented by the operators themselves.

Endress+Hauser can be contacted to provide support in performing this task.

Tankvision NXA820, NXA821, NXA822

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