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The CT/VT input modules with enhanced diagnostics

Internal CT secondary monitoring

The CT/VT input modules with enhanced diagnostics are monitoring internal CT circuitry integrity.

This is done to eliminate relay erroneous operation in case of CT secondary winding failure.

The secondary winding of CT is divided into two equal parts with a central tap in the middle.

CT current values from both halves of the CT secondary windings are run through

a differential amplifier to get a true current sample for the phasor calculations.

It also compares between each other by simply summing two samples together.

(Note that due to CT central tap, samples have different polarity.)

In case that values from different halves of the same CT accumulated over

one protection pass per adaptable per signal level do exceed the fixed error boundary,

failure is declared and protection is blocked.

CT secondary monitoring is performed at all four CT channels (A, B, C, and N) individually at each CT

bank.

GE CT/VT Modules with Enhanced Diagnostics INTRODUCTION

INTRODUCTION

The performance of a microprocessor-based relay is highly dependent

on the performance of the analog channels measurement of the relay,

as protection functions operate on these values.

The failure of an analog measurement channel, 

either due to a failure in the external measurement circuit,

or due to an internal failure inside a UR CT/VT module, 

can cause incorrect operation of protection functions.

The UR CT/VT modules with Enhanced Diagnostics (module types 8L, 8M, 8N, 8R, 8S, 8V)

can detect the failure of an analog channel measurement due to internal

failures of the CT/VT module, alarm for failure of the module,

and block tripping from any protection function associated with this module.

This feature is available when using firmware 5.20 or later within

the UR family and therefore field-proven since 2006.

The integrated firmware of the FB2000-Series Flow Computer

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

FBxWifi™

Easily connect through a secure wireless network.

FBxWifi enables you to connect your laptop or tablet to the flow

computer through a secure wireless connection. Once connected, you

can use FBxConnect configuration software to view process values, edit

configuration parameters, update set-points and collect logs stored in the

flow computer — all while never stepping foot in the hazardous area.

Integrated Firmware

Everything you need, already there.

The integrated firmware of the FB2000-Series Flow Computer

contains all the functionality you’re looking for. A full set of global

calculations including support for Orifice, Cone, Venturi, Nozzle &

Rosemount Conditioning plate DP meters as well as Turbine, Coriolis

and Auto Adjust linear meters are embedded in the unit. Simply

select the software you plan to use and audit without the need for

extra user programs and licenses.

Emerson FBxConnect Tool Guided workflow simplifies configuration


Multivariable Sensor

Superior technology, unparalleled precision.

Equipped with the latest Rosemount™ multivariable measurement sensor

(MVS) technology and engineered for optimal flow performance, the MVS

delivers unparalleled accuracy over a wide range of operating conditions.

Pressure inputs on the sensor are used to measure both differential (DP)

and static (absolute or gauge) pressure with an operating range up to

3600 psia and a five year stability.

FBxConnect Tool

Guided workflow simplifies configuration.

FBxConnext provides a guided configuration process that takes you

through a step-by-step process to fully configure your flow computer.

This wizard-driven approach simplifies configuration and ensures that you

only need to enter required data once. Whether it’s you or your newest

technician, you can be confident that it is done the right way.

Interactive Display

Access locally while maintaining safety.

The backlit liquid crystal display provides a local operator direct access

to the device, without removing the front cover. The display provides

four infrared ‘buttons’ that allow you to securely sign in and then

interact with the flow computer in the hazardous environment without

compromising safety. Four LEDs on the display provide you alarms and

status information.

Emerson Operate more effectively with simplified configuration and support

Limited Time and Resources?

Operate more effectively with simplified configuration and support.

Simplified configuration and support of devices make every aspect of your operation more

effective. The new family of flow computers offers a variety of features that reduce the time

required to configure devices, reduce the likelihood of configuration errors, and reduce the

amount of training required to be effective.

Concerned with Operator Safety?

Access data locally without compromising safety.

Maintaining a safe operation is your top priority, and yet technicians are typically required to

compromise hazardous area approvals to access flow computers. No longer. With FBxWifi or the

Local Interactive Display, the FB2000-Series Flow Computers can be accessed for data collection, set

point and configuration changes, easily without opening the enclosure – which makes your people,

equipment, and operation safer than ever.

Enhanced Metrology Platform Minimized measurement risk.

With an industry-leading global suite of metrology calculations –

validated by third parties – you can be confident that no matter where

you are you’ll find what you need. Add in enhanced fallback mode, global

compliance, and role-based security and you can be confident that

measurement risk has been minimized with all your calculations in the

base firmware and your audit risks are contained.

FB2100 and FB2200 Emerson’s Next Generation Flow Computer

FB2100 and FB2200 Emerson’s Next Generation Flow Computer

Emerson’s new field mount flow computer family provides a new solution to flow metering and

flow computing where challenges with power, safety and measurement accuracy are addressed,

delivering a more convenient approach to remote oil and gas production sites.

The entire family of flow computers provide API, AGA and ISO compliant gas measurement for

single or dual meter runs. Extensive control alarming, reporting, and event log capabilities provide

operators with required data to ensure optimal measurement certainty and production efficiency.

Inconsistent Measurements?

Gain measurement confidence with unmatched accuracy.

Measurement uncertainty is a critical consideration of all oil

and gas producers. With the FB2000-Series Flow Computer

you can further reduce measurement uncertainty. Our

combination of best-in-class sensor stability and temperature

measurement coupled with industry leading fallback

options drive measurement performance to industry leading

levels. Our ease-of-use features make it less likely that

measurements will be misconfigured.

The FB2200 supports multiple communications protocols

Communications Protocols

The FB2200 supports multiple communications

protocols, including DNP3. Modbus master and slave

(ASCII and RTU), BSAP, and ROC on the three serial

ports. In addition, the Ethernet port supports RTU

Modbus over TCP/IP protocol (master and slave),

DNP3/IP, ROC and BSAP.

FBxNet™

FBxNet is a secure, easily configurable, peer-to-peer

communication network for exchanging data between

Emerson FB3000 RTUs and FB1200 and FB2200 flow

computers over an Ethernet connection. FBxNet

supports subscriber and publisher devices, where

publishers provide data to their subscribers. The

FB3000 RTUs and FB1200 and FB2200 flow computers

can be publishers; only an FB3000 can be a subscriber.

For more information, refer to product data sheet

FBxNet (part D301905X012).

Mounting Options

The FB2200 supports direct mounting to a manifold on

the pipeline, simple wall mounting, or mounting on a

two-inch pipe with the stainless steel pipe mounting kit.

Emerson The FB2200 provides up to five user-selectable

communications

Communications

The FB2200 provides up to five user-selectable

communications ports: three serial ports, one Ethernet

port, and one optional port that supports FBxWifi

(802.11 b/g) communications using DNP3 protocol.

▪ COM1 – 4-wire serial communications. Software

selectable for EIA-232 (RS-232), EIA-422 (RS-422), or

EIA-485 (RS-485) operation.

▪ COM2 – 2-wire serial communications. Software

selectable for EIA-232 (RS-232) or EIA-485 (RS-485)

operation.

▪ COM3 – 2-wire serial communications. Software

selectable for EIA-232 (RS-232) or EIA-485 (RS-485)

operation.

▪ COM4 –FBxWifi (802.11 b/g) communications

(optional).

▪ COM5 – Ethernet. 10/100BASE-T twisted pair.

Supports up to seven sessions.

Communications Protocols

The FB2200 supports multiple communications

protocols, including DNP3. Modbus master and slave

(ASCII and RTU), BSAP, and ROC on the three serial

ports. In addition, the Ethernet port supports RTU

Modbus over TCP/IP protocol (master and slave),

DNP3/IP, ROC and BSAP.

Emerson User data points are configurable storage areas

User Data Points – User data points are configurable

storage areas in the data base. These user data points

can store the constants / variables that are inputs to

the math blocks in addition to the calculated results of

math blocks. They can also be used to represent

interim calculation values or values of additional inputs

or outputs etc. There are eight user data instances,

each with a tag and description, 30 integers (split

between byte, short and long), 20 single floating

points, and 10 double floating points, providing

storage for up to 480 variables.

The FB2200 supports up to ten math blocks

User Data Points – User data points are configurable

storage areas in the data base. These user data points

can store the constants / variables that are inputs to

the math blocks in addition to the calculated results of

math blocks. They can also be used to represent

interim calculation values or values of additional inputs

or outputs etc. There are eight user data instances,

each with a tag and description, 30 integers (split

between byte, short and long), 20 single floating

points, and 10 double floating points, providing

storage for up to 480 variables.

Math Blocks – The FB2200 supports up to ten math

blocks. Math blocks perform mathematical equations

using user-defined variables as inputs. Each math

block consists of up to four user-defined variables,

three mathematical calculations, and the results of

each calculation.

The result of the math block equation can be assigned

to a user data point, to drive an output point, to a

calculated value or to any other data base parameter.

Mathematical calculations also support standard math

functions (POW, EXP, LOG, SQRT, etc.), constants, and

operators.

FBxConnect checks each calculation string for the

correct syntax and uses double precision floating point

math throughout the calculation.

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