Transcript OPC Tunneling Why Tunnel with DataHub? No

Avoid DCOM and Tunnel
Across Firewalls and Networks
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OPC DA Tunnelling
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PC to PC without DCOM
Encryption between systems
Across Firewall though single port
Presenters:
Kevin Rutherford, Senior Applications Engineer
Colin Winchester, VP Operations
OPC Tunneling and Data
Aggregation with OPC DataHub
Agenda
 Overview of the OPC Data Hub
 OPC Data Aggregation - Why & How?
 OPC Tunneling – How?
 Live Demo – Tunneling & Logging
Remote Data to ODBC Database
 Additional Application Examples
 Questions & Answers
OPC Data Hub
Functionality Overview
http://www.softwaretoolbox.com/opcdatahub
OPC Data Aggregation
What Is Aggregation?
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Bringing together data from multiple sources
Data sources don’t all have to be OPC servers!
OPC
DataHub
Multiple & Varied
Data Sources
1 to N OPC Clients
(i.e. HMI/SCADA)
Aggregating to a
Single Computer
OPC Data Aggregation
Why Aggregate?
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Insure common, consistent update rate
Limit # of OPC connections
Bring disparate data sources together
(OPC, DDE, ODBC)
Overcome OPC server limitations
Overcome OPC client limitations
Reduce network traffic
Improve system performance
Save money on OPC client & server
licensing with some applications!
What is Tunneling?
OPC Tunneling
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Moving OPC Data via simple TCP/IP port connection
Eliminating DCOM and Expanding Data Transport
Choices
Computer #1
Computer #2
OPC Tunneling
Why Tunnel?
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No DCOM!
No Remote Procedure Calls (RPC)
Handles Network Interruptions
Handles Low-bandwidth networks
Improve System Performance &
Reliability
Reduce Network Traffic
Remove Firewall Issues
Connecting to Non-Windows Systems
How Does OPC DA
communicate between PC’s
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An OPC Client connects to an OPC Server through COM
An OPC Client connecting to an OPC Server on a different
machine connects through DCOM and must be authenticated.
PC – 1 OPC Client
OPC Client
COM run-time
Security
Provider
I want
to your
Tell me
connect
to
you and
login
name
My
user
Let me name
check my
password!
isAccess
“fred”
and
Control
password
Yes,List….
you is
are on PC – 2 OPC
“*****”
my
list… I will
grant you access!
COM run-time
Security
Provider
Server
OPC
Server
OPC Tunneling
Why Tunnel with DataHub?
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No DCOM! Or RPC – Easy to configure
Remove Firewall Issues – single port
Network Interruptions – more then DCOM
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Low-bandwidth or Reduce Network Traffic
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Heartbeat and reconnect settings
No polling
Single connection for multiple tunnels
Improve System Performance & Reliability
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Mirrors data – both side share data
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Clients connected to OPC DataHub always get an answer
Non-blocking calls
OPC Tunneling
Why Tunnel with DataHub?
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Increase Data security (passwords &
SSL)
Connecting to Non-Windows Systems
Multiple clients on same PC,
 still one remote connection to remote
OPC sources, managed by OPC
DataHub
OPC DataHub tunnels DATA
 Any data source – OPC DA, DDE,
ODBC
 Any data that DataHub can read.
OPC Tunneling
Why Tunnel with DataHub?
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Other Tunnellers
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Tunnel commands at the OPC protocol level
and can only tunnel OPC Data!
Make connected clients wait on network
timeouts
Multiple clients on same PC talking to remote
OPC server = multiple connections
Other Approaches
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VPN
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Does not solve
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OPC XML/DA
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DCOM, Network stability, bandwidth and
crossing domains
Not secure, more over head, not for
high speed, limited products, OPC UA
OPC UA
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Requires all products to support it
DataHub will add this
3 Steps to Tunneling with
OPC DataHub
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Step 1: Connect Master to OPC Server
Step 2: Connect Master to Slave
Step 3: Connect OPC Client to Slave
OPC Aggregation
&Tunnelling
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Live Demonstration
Laptop PC
Desktop PC
Aggregation & Tunneling
Additional Application Examples
Aggregating & Tunneling to MES/ERP Systems
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Aggregation Consolidates Plant Floor Data
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Tunneling gets it to the front office
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ODBC, API’s, DDE, Scripting, TCP/IP Available to tie in to MES/ERP
Aggregation & Tunneling
Additional Application Examples
Aggregating & Tunneling OPC, Linux, ODBC and Excel!
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Pull data from OPC Server Locally
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Tunneled data to and from remote Linux Server – or any OS
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ODBC Database connections to Database Server
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All data pulled together in DataHub, charted in Excel with drag+drop
Database
Server
OPC Server
TCP/IP
Tunnel
Aggregation & Tunneling
Additional Application Examples
Tunneling to Bring HMI/SCADA Data Where You Need It
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Aggregate data when needed
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Tunneling to get the data where you need it
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Web Interface Serves the data where & how you want it
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ODBC, API’s, DDE, Scripting, TCP/IP to do what you want!
Factory Floor
DataHub
DataHub
TOP Server
InTouch to
OPC Driver
Front Office
DataHub
Standard TCP/IP
Single Port
Connections
GE
RSView
Proficy
InTouch
iFix
HMI
What Tools are Needed?
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For all usage scenarios
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No tag count limits
No limits on # of clients, # of servers used with a
single DataHub
Aggregation on a Single PC – 1 DataHub
License - $995
Aggregation + Tunnelling Scenario – 2 DataHub
licenses (one per PC) - $1990
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Demo site will pop-up after this presentation:
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http://www.softwaretoolbox.com/opcdatahub/html/free_demo.shtml
Contact Information & Other
Learning Opportunities
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Questions later?
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[email protected]
[email protected]
888-665-3678 or 704-849-2773
www.softwaretoolbox.com/opcdatahub
Other learning opportunities
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www.softwaretoolbox.com/opcdatahub and click
on Videos/Training
Visit www.softwaretoolbox.com/webinars