Transcript AF2002 Tech Session - Spectrum Controls Inc.

Integrated Device Networks
®
for ControlLogix Systems
“Practical Applications for
HART I/O”
Spectrum Controls, Inc.
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Founded in 1983
Developer of I/O, HMI and Embedded Products
Brand Label and Spectrum Label Products
Rockwell Automation Global Encompass
Partner
• Located near Seattle, Washington, USA
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
Enterprise
Client
Applications
RSLogix / Logix
RSView / RSMACC
Asset Management
Visualization
AMS / DMS/
FieldCare
RSView or
PanelView
Change Management
& Maintenance
ENet
ControlLogix
Analog+HART I/O
ENet or CNet
HART
Field Devices
Hand Calibrator
Analog
and
HART
Data
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
Pre-defined Commands
• Common Practice
• General Purpose
• Device Specific
Large Installation Base
Analog
Signal
Worldwide Support
Existing acquisition methods
• Handheld Communicator
Limited to point-to-point connection
• 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
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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. Your Application Layer
3. 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
Spectrum Controls
Analog+HART
I/O Gateway
Rockwell Software
RSLinx
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I/O
HART
HARTI/O
Device Management
Application
Enterprise
Client
Applications
How CONNECTS works…
Enterprise
Client
Applications
RS-232 Interface
Asset Management
Software Interface
Configuration File
User
Interface
Communication
Controller
Activity Log
HART I/O
Interface
Network Interface
(Ethernet, ControlNet)
RSLinx
HART Field Devices
Enterprise
Client
Applications
ControlLogix
w/ HART I/O
HART
Field Devices
Highly Standardized
Large Installation Base
Less costly
Instrument HART Data
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PV: Mass Flow Rate
SV: Totalizer 1
TV: Density
FV: Temperature
Volume Flow
Std. Volume Flow
Target Flow
Carrier Flow
Calculated Density
Totalizer 2
PV: Percent Travel
SV: Travel Setpoint
TV: Temperature
FV: Supply Pressure
Status Bytes
RAM Fail
Pressure Sensor Fail
Temperature Sensor Fail
Position Sensor Fail
Endress+Hauser
Mass Flow Meter
Read
Write
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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
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Perform Diagnostic Tests
Set Zero & Span
Adjust For Mechanical Wear
Adjust Valve Sensitivity
Metso Control Valve
Read
Write
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
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
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Operation without HART
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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
Connectivity
Operation
Maintenance
Integrated HART Networks are:
Real
Scaleable
Cost Effective
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HART I/O