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Flow Computer Division

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ROC809 Remote Operations ControllerROC809 Remote Operations Controller

The Solution to Field Automation Problems

Flow Computer Division ROC8092 of 33

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Building on Our Reputation for Solving ProblemsBuilding on Our Reputation for Solving Problems

The ROC family of Remote Operations Controllers has established an industry benchmark for flexibility, robustness, ease of use and reliability.

The ROC809 builds upon this reputation with new features, benefits and technology that make it the preferred choice for your most demanding remote measurement and control application.


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An RTU, Flow Computer, and PLC in OneAn RTU, Flow Computer, and PLC in One

The ROC809 was designed to solve many of the problems that limit the performance, reliability, and flexibility of traditional RTUs, Flow Computers, and PLCs.

With the ROC809, you have in a single device, the:– Ruggedness and low power

consumption of an RTU

– Audit trails and historical data of a Flow Computer

– The scalability, speed and control of a PLC.


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Unparalleled Applications FlexibilityUnparalleled Applications Flexibility The ROC809 is ideal for field

applications where the monitoring, measurement and control of processes and equipment are required.

Some of the more popular applications include: – Gas production– Fiscal metering– Compressor stations– Offshore platforms– Small gas processing operations– Water and wastewater facilities– Tank farms– Boilers and chillers.


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Outstanding FunctionalityOutstanding Functionality

Fill-in-the-blanks configuration

IEC61131-3 compliant programming

Fast, accurate AGA flow calculations

Distributed architecture

Sophisticated PID loop control

Flexible logic and sequencing control

Broad communications capability

High performance CPU and real-time operating system


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Field-Ready HardwareField-Ready Hardware

Rugged I/O and communication modules feature fuseless protection

Modular ABS housing resists corrosion

DIN rail mounting tabs make installation easy

Generous wiring raceways with covers keep wiring neat

Field wiring terminals plug-in for easy module removal

Low power -- draws less than 70 ma at 12 VDC (base unit)

I/O and communication modules can be removed and replaced under power

Reliable operation over a wide temperature range


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Performance Problems SolvedPerformance Problems Solved

Traditional RTUs lack the processing speed and capacity to handle control jobs requiring extremely fast response, like those performed by PLCs.

The ROC809 closes this performance gap by using the Motorola® PowerPC® (MPC862) 32-bit microprocessor as its engine.

Not only is the MPC862 fast, but it is designed for telecommunications and networking giving it a real edge over most PLCs.


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The ROC809 uses a real-time, multi-tasking operating system designed specifically for the kind of measurement and control tasks encountered in field applications.

This operating system has proven its robustness in industrial control, telecommunications and avionics applications.

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Real-Time Operating System

Application Integration


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The high power consumption of PLCs often limits their use to factory applications. Low power consumption for remote operation was a key design goal of the ROC809.

In addition to using low-power components, extensive use was made of the "sleep" modes provided by the CPU.

Sleep modes shut down operations when they are not needed, such as certain software tasks, and they control power to devices such as LEDs.


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I/O Problems SolvedI/O Problems Solved

Interfacing to end devices can be the weakest link in a measurement and control system. Problems related to grounding, wiring errors, electrical noise, and transients are commonplace.

The ROC809 solves many of these problems because we’ve designed its I/O and communications modules with accuracy, ruggedness and survivability in mind.

Analog In

Discrete In

Pulse In

RTD In

Thermocouple In

Analog Out

Discrete Out

Relay Out


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Plug-in I/O modules make extensive use of optical (electrical) isolation, transient suppression, and current limiting. This dramatically improves reliability and virtually eliminates failures related to power, grounding and wiring errors.

All I/O modules are isolated from the backplane to minimize cross-card failures. The benefits of this extensive protection are less downtime, fewer trips to the field for repairs, and reduced spares inventory to name a few.


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To facilitate expansion or repair, I/O modules can be removed and replaced under power. To simplify configuration, they are self-identifying to the firmware.

An outstanding feature of the analog input modules is their high accuracy. For example, the 12-bit module uses a 16-bit analog-to-digital (A/D) converter for greater accuracy than most competitive units.


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Up to nine I/O modules can be plugged into the module slots in any order and combination of module types.

The low point count density of these modules lets you better match I/O to your application requirements.

You buy more of what you need, and less of what you don’t need.

Should a module fail, the impact on your application is minimized.


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Communication Problems SolvedCommunication Problems Solved

Modern automation systems place increasingly greater demands on the communications capabilities of field equipment.

We designed the ROC809 to blend into almost any system environment by virtue of its wide range of communications and networking options.


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With the Ethernet capability of the ROC809, you can effectively extend your company’s local area network (LAN) to the field. You get more data at a lower cost than with conventional communications methods.

When coupled with our DS800 Development Suite, Ethernet makes it possible to network ROC809s, giving you tremendous I/O and control capabilities for large applications.


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In addition to an Ethernet port, the ROC809 has two built-in EIA-232 (RS-232) ports, one typically used for communications to a PC-based local operator interface, and one for communication to other devices.

Three additional ports can be added using plug-in Communication Modules.


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An outstanding feature of the ROC809 is its Spontaneous Report-by-Exception (SRBX) Data Transmission capability.

A host computer can poll the ROC809 at a user-specified time interval, or the unit can initiate a transmission when certain alarm conditions occur.

SRBX can greatly reduce communication system loading and related costs.


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Application Problems SolvedApplication Problems Solved

The problem with many RTUs, PLCs and flow computers is their inability to meet a wide range of applications common to field installations.

The ROC809 addresses this problem with a comprehensive applications package that supports a wide range of metering and control needs.

The package builds upon the outstanding features proven in tens of thousands of ROC300 series installations worldwide.


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Application Problems SolvedApplication Problems Solved The power of the

ROC809 is demonstrated by the number of processes that it can handle simultaneously with a small amount of I/O.

For example, 12 Meter Runs and 16 Control Loops can be managed by the ROC809 using only two multi-variable sensor ports and 16 analog outputs.


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The ROC809s gas calculations comply with AGA and API standards and incorporate;– AGA 3 for orifice metering

– AGA 7/ ISO 9951 for turbine metering

– AGA 8 / ISO 12213-2 for compressibility

– API Chapter 21 Section 1.

Setting up meter runs is fast and easy with our fill-in-the-blanks configuration method. There’s no learning curve, and minimal knowledge of AGA calculations is needed.


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A new feature introduced by the ROC809 is the Meter Station, which makes it easy to configure and operate multiple meter runs with similar properties.

Meter Stations also reduce communications overhead and reduce data entry when configuring multiple meter runs.

The ROC809 can handle up to 12 meter runs, and runs can be grouped in up to 12 Meter Stations.


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The ROC809 provides outstanding PID loop control capability that rivals that found in dedicated process controllers. The control firmware incorporates:– Pre-configured templates for basic

PID loop control

– Up to 16 PID control loops each with override support

– Support for both analog and discrete control devices.

In addition, special loop control strategies can be implemented using the extensive programming capabilities of the ROC809.


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The ROC809 also provides you with Function Sequence Table (FST) control.

You construct control strategies by choosing from a set of logic, math, comparison, time-related, control-related, database and general command sets.

Current ROC300 users can run their FSTs on the ROC809 with only minor modifications, such as redefining input points.


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Programming Problems SolvedProgramming Problems Solved

To fully exploit the capabilities of the ROC809, you don’t need to be a programming expert.

We’ve assembled programming tools that make almost anyone look like an expert. And all tools are Microsoft® Windows®-based for ease of use.


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The optional DS800 Development Suite lets you create control strategies using any of 6 programming languages.

Five are IEC 61131-3 graphical languages: – sequential function chart– function block diagram– ladder diagram– structured text– instruction list.

A graphical flow chart language is also provided.


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DS800 provides a standard programming interface that lets people with different backgrounds and skills create different elements of a program. When completed, all elements will work together seamlessly.

For example, if you program PLCs, DS800 lets you create programs in ladder logic. And, if your background is process control, you can create programs using Function Block diagrams.


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User C/C++ Programming capability allows experienced programmers to implement control strategies in the ROC809.

We provide a library of commands that allows you use off-the-shelf programming tools to interface to the ROC809s database.

The User C/C++ support for the ROC809 was developed so programmers do not need an extensive knowledge of the firmware architecture.


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Configuration Problems SolvedConfiguration Problems Solved

The ROC809 uses our Microsoft® Windows®- based ROCLINK 800 software package to perform configuration and data retrieval functions.

These functions can be performed on-site, or remotely through virtually any communications link. The remote capability can yield tremendous cost savings by reducing the need for on-site travel.

Operator help screens can be accessed either from a Help menu or in a context-sensitive fashion.


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Configuration Problems SolvedConfiguration Problems Solved

With ROCLINK 800 you can:– Configure and view I/O points, meter stations, flow calculations,

PID control loops, system parameters and power management features

– Retrieve, log and print history data

– Retrieve, log and print events and alarms

– Perform five-point calibration on analog inputs including multi-variable sensor inputs

– Implement user security levels

– Create and edit graphical displays

– Create and edit Function Sequence Tables (FSTs)

– Set up communications parameters for direct connection, radio interface, telephone modems and other communications methods.


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Support Problems SolvedSupport Problems Solved

Doing business with Emerson Process Management gives you the confidence that the products, services and solutions you buy are backed by our unmatched global support. And, Emerson’s industry expertise will help you achieve your performance and profitability goals.

The information and support you need is as close as your telephone or web browser, or right around the corner. With over 600 locations in more than 85 countries, chances are we have an office near you.


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Go With the Leader in Process Control...Go With the Leader in Process Control...

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...And the Leader in Customer Service...And the Leader in Customer Service

Highest Overall Ranking vs. Major Process Competitors

1ST 2ND 3RD TOTAL

Emerson 21 8 3 32Allen-Bradley/Rockwell 8 5 3 16Invensys 2 3 5 10Siemens Moore 2 3 5 10ABB 1 1 6 8Endress+Hauser 1 2 1 4Yokogawa 1 2 2 5Honeywell 0 8 1 9

Control Magazine, January 2002

“Tough times are no time to purchase lackluster products from indifferent suppliers. Our 10th Annual Survey [of end users] names vendors with the best technologies and rates their customer service.”


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Go with Emerson Process Management!Go with Emerson Process Management!

For detailed information on the ROC809 and other Flow Computer Division products, contact your Emerson Process Management Representative or call:– 1-800-807-0730 (U.S. & Canada only)

– 1-641-754-3449 (Worldwide).

You can also visit us on the World Wide Web at:– www.EmersonProcess.com/flow

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