Integrated Device Networks for ControlLogix

®

Systems

“Practical Applications for HART I/O”

Spectrum Controls, Inc.

• • • • • • • • • •

Benefits of an Integrated Device Network

Commissioning

Efficient Documentation Simplified Device Configuration

Operation

Real-time diagnostics Regulatory Compliance (FDA, EPA…)

Maintenance

Automated Predictive Maintenance Audit Trail / Self Documentation

Definition of Process Networks

Enterprise Networks

- protocols that focus on IT applications (LAN, WAN, Ethernet…)

Control Networks

- protocols typically used to connect controllers and I/O systems (ControlNet, Ethernet/IP, FF-HSE, Modbus, Profibus-DP)

Device Networks

- protocols originally focused on process instrumentation (Foundation Fieldbus-H1, HART, Profibus-PA)

Sensor Networks

- protocols initially designed to support discrete I/O (AS-I, CAN, DeviceNet, Interbus, LON)

Protocols

The network type does not necessarily define the protocol.

Separation of protocols and network type is often unclear, many cross into several classifications.

Integrated Architecture

Engineering Workstation RSLogix / Logix RSView / RSMACC Asset Management AMS / DMS/ FieldCare

Enterprise Client Applications

ENet Visualization RSView or PanelView Change Management & Maintenance

ControlLogix Analog+HART I/O

ENet or CNet Analog and HART Data

HART Field Devices Hand Calibrator

HART Primer

UNIQUE COMMUNICATION SOLUTION The HART Protocol supports two way digital communications and is designed to complement traditional 4-20mA analog signal.

HART - Highway Addressable Remote Transducer Analog Signal

Pre-defined Commands

• • •

Common Practice General Purpose Device Specific Large Installation Base Worldwide Support

Existing acquisition methods

• • Clip-on Serial Modem

Requires you to be in the field!

Existing acquisition methods

• HART Multiplexer

Requires additional hardware!

Requires additional wiring!

Evolution of HART Technology

1756sc-IF8H

- Analog Input with HART

1756sc-OF8H

- Analog Output with HART • • • • • • 8 Channels of Analog Input or Output Each channel selectable…

Voltage Current Current + HART

Versatile Communication Options Compatible with PLX and CLX HART compliant (Point to Point) Standard wiring / terminal blocks • Connectivity Software

I/O Block Diagram

Proven analog technology 16 to 21 bit resolution HART modem services are independent HART and Analog data on the backplane ControlNet Compliant Communication

Hardware Interface

Scan-Based

Device Information PV,SV,TV,FV Automatic Connection Read Access The HART I/O modules reside within a Logix PLC chassis.

The I/Os are fully ControlNet compliant.

This means data is accessed via - scan-based communication - unconnected messaging ( processor independent )

Unconnected Message

Device Information PV,SV,TV,FV Extended HART Data Vendor Specific Commands Read/Write Access

I/O Communications: Scan-based

The modules are configured using RSLogix 5000 Scan based data is accessed via your ladder logic using module tags.

You have access to: Analog value/control Device Information HART PV, SV, TV, FV HART “Packet” Data Four user defined slot variables You have access to key data… which updates

automatically

I/O Communications: Scan-based

Scan based data is accessed via your ladder logic using module tags.

Note that the HART PV, SV, TV, FV are available without the typical command / response dialog.

I/O Coms: Unconnected Messaging

The module will accept and queue unconnected message requests.

These messages may be generated by 1.

Message block in your ladder logic 2.

3.

Your Application Layer Another ControlNet Node You have access to: ALL DATA Analog value/control HART PV, SV, TV, FV Common Practice Commands Device Specific Commands

Client

Control and Information Protocol CIP

Client Software

Enterprise Client Applications ControlLogix w/ HART I/O HART Field Devices There are applications for every aspect of system management and operation.

Software Components

Workstation Device Management Application Spectrum Controls Analog+HART I/O Gateway Rockwell Software RSLinx + +

Enterprise Client Applications

How CONNECTS works…

Enterprise Client Applications Configuration File RS-232 Interface Asset Management Software Interface Communication Controller HART I/O Interface Network Interface

(Ethernet, ControlNet) RSLinx

User Interface Activity Log

HART Field Devices

Enterprise Client Applications ControlLogix w/ HART I/O

Highly Standardized Large Installation Base Less costly

HART Field Devices

Instrument HART Data

Endress+Hauser Mass Flow Meter

• • • • • • • • • •

PV : Mass Flow Rate SV : Totalizer 1 TV : Density FV : Temperature Volume Flow Std. Volume Flow Target Flow Carrier Flow Calculated Density Totalizer 2

Read Write

Metso Control Valve

• • • • • PV : Percent Travel SV : Travel Setpoint TV : Temperature FV : Supply Pressure Status Bytes

RAM Fail Pressure Sensor Fail Temperature Sensor Fail Position Sensor Fail

Read Write • • • • • • • • Set Flow Units Reset Totalizers Set Zero & Full Scale Range Change K Factor Change Pipe Diameter Set Flow Direction Set “Low Flow Cutoff” Make Density Adjustments • • • • Perform Diagnostic Tests Set Zero & Span Adjust For Mechanical Wear Adjust Valve Sensitivity

Practical Applications

Commissioning

Efficient Documentation Simplified Device Configuration

Operation

Real-time diagnostics Regulatory Compliance (FDA, EPA…)

Maintenance

Automated Predictive Maintenance Audit Trail / Self Documentation

Commissioning

Quickly verify and document device configuration and calibration, assure the integrity of wiring, and confirm the operational capability of every control loop – all from one central location.

Verify and tune valve performance by performing loop checks, via the network, and read back position.

Generate and archive system configuration data more quickly.

Operation with HART

Normal Operation 4-20mA PV: Percent Travel SV: Travel Set Point TV: Temperature FV: Supply Pressure Set Zero & Span Adjust For Mechanical Wear Adjust Valve Sensitivity L G X C P U H A R T Diagnostics / Maintenance 4-20mA Status Byte RAM Fail Pressure Sensor Fail Temp Sensor Fail Position Sensor Fail Perform Diagnostic Tests Set Zero & Span Adjust For Mechanical Wear Adjust Valve Sensitivity E N e t

Operation without HART

L G X C P U E N e t

Analog data from three field devices HART data is not being used PLC performs all calculations Dedicated field devices Dedicated I/O modules More loops to wire Pressure Flow Temperature

Operation with HART

Read Data PV

: Mass Flow Rate

SV

: Totalizer 1

TV

: Density

FV

: Temperature Volume Flow Std. Volume Flow Target Flow Carrier Flow Calculated Density Totalizer 2

Write Data

Set Flow Units Reset Totalizers Set Zero & Full Scale Change K Factor Change Pipe Diameter Set Flow Direction Set Low Flow Cutoff Make Density Adjustments

Simplified Installation/Wiring Better Quality Data More Diagnostic Information

Maintenance with HART

Device Management Workstation vs. Field Scheduling Reduce downtime System Backup Fast Recovery Historical Reference Identify Trends Determine Reliability

Conclusion Commissioning Operation Maintenance Connectivity

Integrated HART Networks are:

Real Scaleable Cost Effective

+ HART I/O