Transcript Introducing the Next Generation Process Control and

Electronics Division
Introducing the Industry Standard Process
Control and Enterprise Management System
EDN:Feb-01
Electronics Division
Plant information network
ENGINEER’S
STATION
MAXSTATIONS
Redundant 100 Mbps MAXNET
MAXLINK
FIBRE OPTIC
LINK
REMOTE PROESSING UNITS
PLANT SUB-SYSTEMS
REMOTE I/O
TYPICAL CONFIGURATION DIAGRAM
EDN:Feb-01
Electronics Division
MAXSTATION
• True open system architecture
• Seamless communications with plant and
business networks
• Scaleable from small process applications
to complete plant control
• On-line graphic monitoring
• On-line Self-documenting configuration
• Ultra high speed graphic building and
display updates
• Centralised Engineering capability
EDN:Feb-01
Electronics Division
Windows NT
•
•
•
•
•
•
Standard Operating System for all MAXSTATIONS
Largest base of software applications
Strongest standards for compatibility
High reliability and security
Easily upgraded
Latest intuitive windows interface for easy
operator training and use
• Currently Microsoft Windows NT 4.0
EDN:Feb-01
Electronics Division
MAXSTORIAN
• Historical Data Collection and
Archiving Software for MAXSTATION
• “Delta-Save” data storage
maximizes system data capacity
• Relational database to simplify
reports and queries for data
analysis
• Archival storage to CD-ROM
• Supports interface to plantmanagement networks
• Windows-NT based
EDN:Feb-01
Electronics Division
MAXLINK
MAXNet
Plant Sub-Systems
EDN:Feb-01
• Interface to external systems:PLC
networks (Coal Handling Plant, Ash
Handling Plant etc.)
• Supports multiple simultaneous
communication protocols
• Supports data transfer from other
systems and networks
• All data available to MAXSTATIONS
• Windows-NT based
• Software Backplane® compatible
Electronics Division
MAXNET Communications Network
•
•
•
•
•
EDN:Feb-01
Proven Industry Standard, Switched Fast Eathernet
Ultra high speed (100 Mbps) redundant network
Multiple simultaneous communication
Utilises intelligent switching
No collisions occur. Traffic is never stopped
Electronics Division
Inter-Hub Communications
Full Duplex Switched Hub
Full Duplex Switched Hub
100 Megabits per Second
Full Duplex
• All standard communication media supported Fiber optic and UTP
• Future Gigabit and high communications rates
EDN:Feb-01
Electronics Division
Why Use a Switch?
• Increase network bandwidth
• Permits simultaneous connections
• Connect 10Mbps to 100Mbps networks - speed
buffering
• Increase physical size of 100Mbps network
EDN:Feb-01
Electronics Division
Switched Ethernet
• Multiple simultaneous conversations
• Full-Duplex communications between switched hubs
• Similar to telephone system
Switch 1
EDN:Feb-01
Switch 2
Electronics Division
How a Switch Works
Step 1 - the switch was just turned on
Learning Table
00-20-7C-DD-51
Port MAC Address
1
?
2
?
3
?
4
?
B
2
A
C
1
3
00-20-33-A5-3B
00-20-1F-47-13
4
The learning table is empty since the switch
was just turned on.
D
00-20-D8-4E-FF
EDN:Feb-01
Electronics Division
How a Switch Works
Step 2 - Station A sends to Station B
Learning Table
00-20-7C-DD-51
B
Port MAC Address
1 00-20-33-A5-3B
2
?
3
?
4
?
• The switch hears the message
on port 1, so it knows that
A
C
station A is connected there.
3
00-20-33-A5-3B 1
00-20-1F-47-13
• The switch enters this
4
information into the table.
• The destination MAC address is
D
not in the table.
• So, the switch forwards the
00-20-D8-4E-FF
message to all ports.
2
EDN:Feb-01
Electronics Division
How a Switch Works
Step 3 - Station B responds
Learning Table
Port MAC Address
1 00-20-33-A5-3B
2 00-20-7C-DD-51
3
?
4
?
00-20-7C-DD-51
B
2
A
00-20-33-A5-3B
1
3
00-20-1F-47-13
4
D
00-20-D8-4E-FF
EDN:Feb-01
C • The switch hears the message on port 2,
so it knows that station B is connected
to switch port 2.
• The switch enters it into the table.
• The switch looks up the destination MAC
address in the table and finds that
station A is connected to port 1.
• So, the switch forwards the message to
only port 1.
Electronics Division
How a Switch Works
Steps 4 & 5 - Stations C and D talk
Learning Table
Port MAC Address
1 00-20-33-A5-3B
2 00-20-7C-DD-51
3 00-20-1F-47-13
4 00-20-D8-4E-FF
00-20-7C-DD-51
B
2
A
00-20-33-A5-3B
C
1
3
00-20-1F-47-13
4
D
00-20-D8-4E-FF
EDN:Feb-01
• Station C sends a message to station
D and station D responds.
• The switch hears station C on port 3
and station D on port 4 so it adds
that information to the learning table.
• In just a few steps, the switch has
learned the layout of the entire
network
Electronics Division
How a Switch Works
Step 6 - Simultaneous Conversations
Learning Table
Port MAC Address
1 00-20-33-A5-3B
2 00-20-7C-DD-51
3 00-20-1F-47-13
4 00-20-D8-4E-FF
00-20-7C-DD-51
B
2
A
00-20-33-A5-3B
C
1
3
00-20-1F-47-13
4
D
00-20-D8-4E-FF
EDN:Feb-01
• Since the switch knows the network
layout, it only forwards messages to
the proper port.
• Simultaneous conversations are
now possible.
• Any pair of stations can now talk
directly without interfering with
other conversations.
Electronics Division
Two Identical Networks
Switch A
Network “MAP”
from Station 1
Station A
B
2
OK OK
3
OK OK
Network A
1
2
3
Network B
Switch B
• WorkStation 1 hears messages from stations 2 and 3 on both
networks A and B.
• Only one network is used to communicate with any given
station. The other network is used only if the first network fails.
EDN:Feb-01
Electronics Division
MAXNET
100 Mbps Switched Ethernet
Host Computer and Remote Workstations
Remote
MAXStation
Plant Management Network
MAXStations
Modem
100 Mbps
Full Duplex
Optical
Repeater
10 Mbps
Half Duplex
MMI Region
Control Region
FDX
D
P
U
O
D
C
D
P
U
A
I
D
I
Parallel
I/O Bus
A
O
D
O
Process I/O Signals
EDN:Feb-01
D
P
U
Serial Interface
(MODBUS Typ)
• Full duplex, high speed
communications between
hubs.
• All interfaces, links and
switches are redundant
• All stations are directly
connected
• Flexible topology
• Uses industry standard
hardware
• Capacity greatly exceeds
system maximum loading
Electronics Division
Network Domains
MAXSTATION
MAXSTATIONS
Switched
Hub
RPUs
•
•
•
•
•
EDN:Feb-01
RPU
MAXSERVER
Global access of data for data acquisition and control
Separates discrete sections of DCS - e.g. plant units
Provides security and assures performance
Simplifies maintenance
Allows integration of other systems
Electronics Division
Distributed Processing Unit
• 32 Bit Intel Processor
• Windows CE Operating System.
Supports off-line simulation and
testing
• Open architecture
• Uses MAXNET Ethernet Data
Highway
• Object-Oriented Configuration
• Rack Mounted
• 8 MB flash RAM, 32 MB SDRAM
• Modulating Control, Logic, Data
Acquisition
• Event Reporting to 1 msec
Resolution
EDN:Feb-01
Electronics Division
• Software
Backplane®
compatible —
No servers
needed
• Separate I/O
bus processor
• Remote I/O
capability
(1500 m)
redundant
• Two
embedded
programmable
links
EDN:Feb-01
Electronics Division
DPU 4E Processing Capability
• Multiple time classes
— 20 msec to 1 sec
• Sequence-of-Events
to 1 msec resolution
for 500 discrete
inputs
• Quality coding —
Good, bad, doubtful,
and substitute
• Modulating control,
logic processing, and
data acquisition
EDN:Feb-01
TX
FT
FT
X
X
D
D1
D2
OR
AND
FT
D
PID
D3
D4
X
OR
S
Electronics Division
DPU 4E Redundancy
• Primary and secondary are selected through
configuration
• Fatal diagnostic error causes transfer in <3 msec
• Secondary DPU configuration can be modified and
transfer initiated for testing purposes
EDN:Feb-01
Electronics Division
I/O Modules
•
•
•
•
•
•
•
•
EDN:Feb-01
Surface mount electronics - compact, reliable, efficient
Surge withstand as per IEEE 472-1974
RFI and EMI per SAMA PMC 33.1
ADC resolution 15 bits + sign
500V peak AC or DC Common mode voltage protection
Status indication LED for each channel
Remote I/O and HMI capability, for plant-wide distribution
Redundant configuration possible for both analog and digital I/O
Electronics Division
I/O Redundancy
I/O Can be Redundant ...
I/O
I/O
I/O
I/O
Redundant
DPU Bus
EDN:Feb-01
I/O
I/O
... And Shared
Electronics Division
Object-Oriented Configuration
• Graphical object-oriented
configuration software tool
• Includes self-documentation of
configuration
• True object-oriented features
including encapsulation and
inheritance
• Library of standard algorithms or
“objects”
EDN:Feb-01
C
Electronics Division
MAXTOOLS
•
•
•
•
•
•
•
MAXTOOLS
Runs in MAXSTATION or in PC
Off-line simulation and verification
Self documentation
On-line monitoring and help
Microsoft Foundation Class
Multiple Concurrent Users
“Windows Explorer” Type Tree
Navigation
• Point Configuration Tools
• MAXVUE Graphics
EDN:Feb-01
Electronics Division
MAXVUE Graphics
• Microsoft Standard HMI
– Utilize standard packages for bitmap Generation
– Familiar Keystrokes and Mouse
– Can Import Images from other packages
• Object Linking and Embedding
– Incorporate Visual Basic Custom Controls
– Incorporate Third Party Controls
• OLE Container and Server
– Inbed MAXVue Screens in other Software
• Drag and drop editing
• Moveable toolbars
EDN:Feb-01
MAXVUE
Electronics Division
MAXREPORTS
• Easy to Configure
– Reduce time
– Increase Flexibility
• Operator Control Panel
– Control over Print Queues
• Preview
– Eliminate unnecessary Printing
• Encapsulated data capture
– Data Captured at Report Trigger
– Files Accessable through Any Application
EDN:Feb-01
Reports
Electronics Division
MAXFIREWALL
Firewall
• Provide process information to network resident
computers
• Secure control room network from
– Unauthorized Control of Process
– Overload from Network Abuse
– Prevent Unauthorized Viewing of Data
• Generation Independent Access to MAX
Information
EDN:Feb-01
Electronics Division
MAXAPP
MAXAPP
• Provide a Custom Applications Environment
• Microsoft Visual Basic Control for Simple
Interface
• Microsoft Visual C++ Wrapper
– Very High Performance
– Flexible
• Generation Independent Applications
EDN:Feb-01
Electronics Division
Modular Architecture
• Plug and Play System Additions
• Can Grow as Your Needs Change
MAXVue
MAXTools
History
Reports
Firewall
Software Backplane
Provider
EDN:Feb-01
PLC
DPU 4E
Applicat.
Electronics Division
Open System
• All workstation software are native Windows NT
applications.
• Used standard MFC development tools
• Extensible with Visual C++ and Visual Basic
– MAXVUE is an ActiveX container
• Standard hardware
– Common components can be locally sourced
• Widely supported operating system
EDN:Feb-01
Electronics Division
Open System
• Faster and lower cost to customize the system
– Faster development of interfaces to networks and other
equipment
– Extend capabilities with third party software that is ActiveX or
OPC compliant
– Can Represent External Data Easily
• Widely accepted interface simplifies
– Training
– Support
– Operation in local language
• Extends system life to maximize investment
– Easily adapt new hardware as it is introduced
EDN:Feb-01
Electronics Division
Software Backplane
Software Backplane
• Connects applications clients with providers of
data
• Very high performance
• Simple - READ / Write / Register / Subscribe
• Network Independent
• Operating System Independent
• Revision Independent
EDN:Feb-01
Electronics Division
Switched Hubs
• Multiple
simultaneous
communications
• Redundant
configuration
• No failure can
disable multiple
stations
• Standard hardware
• Simple installation
• High reliability
EDN:Feb-01
Electronics Division
Full Duplex
Communications
• Effectively doubles the
communications
bandwidth
• One DPU can send alarm
information while
another is receiving
operator commands
MAXSTATIONS
Switched Hub
Switched Hub
DPUs
EDN:Feb-01
Electronics Division
EDN:Feb-01
Electronics Division
Boiler Overview Display
EDN:Feb-01