Eurotherm Clone Network Wizard User Guide

Eurotherm Clone Network Wizard User Guide
Clone Network
Clone Network Wizard
User Guide
HA029430
September 2011 (Issue 2)
© 2011
All rights are strictly reserved. No part of this document may be reproduced, modified, or transmitted in any
form by any means, nor may it be stored in a retrieval system other than for the purpose to act as an aid in
operating the equipment to which the document relates, without prior written permission of the
manufacturer.
The manufacturer pursues a policy of continuous development and product improvement. The specifications
in this document may therefore be changed without notice. The information in this document is given in good
faith, but is intended for guidance only. The manufacturer will not accept responsibility for any losses arising
from errors in this document.
3
Contents
Chapter 1
Introduction................................................ 5
Chapter 2
Communications Protocols ............................ 6
What is LIN? ..................................................................................... 6
What is a LIN Database? .............................................................. 7
What is a LIN Function Block? ..................................................... 7
What is Modbus? ............................................................................... 7
Modbus Messages .......................................................................... 8
What is Profibus? .............................................................................. 9
What is EI-Bisynch? ......................................................................... 9
Address .............................................................................................. 9
Mnemonics ..................................................................................... 9
Channels ....................................................................................... 10
Chapter 3
OPC Servers ............................................. 11
LINOPC Control Panel ................................................................... 11
LINtools Engineering Studio ......................................................... 11
iTools Control Panel ....................................................................... 12
iTools Engineering Studio .............................................................. 12
Chapter 4
Online Pages ............................................. 13
Clone Network ............................................................................. 13
Clone LIN nodes in this Network .................................................. 14
What is the LINOPC server? ....................................................... 14
Clone Instrument Files ................................................................... 14
Clone other nodes in his Network .................................................. 15
Stop Scan/Refresh button ............................................................ 16
Make Profibus folders checkbox .................................................. 16
Clone Network Wizard User Guide
Contents4
What is the Modbus Server? ....................................................... 16
More? ............................................................................................... 16
Clone Network Wizard User Guide
5
Chapter 1
Introduction
The Clone Network Utility wizard offers the function to create a
Project structure on the Computer, including Network Folders,
Instrument Folders and Strategy files, that correspond to the Network
of devices that are already connected via an OPC Server Port.
It is used to create a Project or Network on the Computer, used to hold
the configuration files for the instruments in the plant/system. The
wizard initiates the polling of a selected Network, already configured
with an OPC port name via the LINOPC Control Panel and the iTools
Control Panel applets'. Each Port has access to a single Network, but
a single Network can be accessed from more than one Port. Polling the
Network locates all available devices, then creates and populates a
structure of Folders on the Computer with the configuration files from
the selected devices on the selected Network.
Once complete, the cloned Project structure will automatically initiate
a Build operation. This is used to ensure all changes are correct when
used in the instrument or by another application.
Tip: Have the Network Port name ready, to simplify the location of the
required Network.
Clone Network Wizard User Guide
6
Chapter 2
Communications Protocols
Networks began as a simple idea to link a few computers together in
order to exchange messages and to share files and peripheral
equipment, such as printers and modems. These Local Area Networks
(LANs) frequently consisted of one server and groups of independent
workstations with similar operating systems and software, capable of
operating with or without the network. Networks are now more
complex and diverse, and have become an essential component of
day-to-day business. Most LANs commonly support many different
types of operating systems and hardware platforms and are often
linked together to form Wide Area Networks (WANs).
The Project Networks supports the following communications
protocols:
• "Local Instrument Network (LIN)
• Modbus
• Profibus
• EI-Bisynch
What is LIN?
LIN is a communications protocol providing a token-passing
masterless network which allows peer-to-peer communications and file
transfer. It is supported via Ethernet, Arcnet and Serial
communications connection.
The LIN Database groups data into blocks of related data. For
example, a function block can represent an input, an output, a
controller, and so on. The LIN configuration tool (LINtools) and
display packages recognise different types of function block, and
handle them appropriately.
Clone Network Wizard User Guide
What is Modbus?7
Communications between LIN and Modbus instruments require a
Gateway. This involves the mapping of data from the LIN Database to
the Modbus registers and digitals.
What is a LIN Database?
A LIN Database (.dbf) is a software program that runs in a instrument
on the LIN. The running LIN Database takes in signals from sensors
in an outside entity (e.g. an industrial plant), processes them in
specified ways, and then outputs signals to actuators in the entity to
control its behaviour in the required manner.
The cycle of signal input to the LIN Database, signal processing, and
signal output to the entity is repeated continuously while the Strategy
runs.
More than one LIN instrument can be involved in controlling a single
entity, but only one LIN Database can run in a single LIN instrument
at a time.
A LIN Database can work in conjunction with one or more LIN
Sequences running in the LIN instrument. It can also make use of LIN
Actions stored in action files in the LIN instrument.
In LINtools Engineering Studio, a LIN Database is represented and
configured graphically as an arrangement of LIN function blocks
interconnected by wires.
Note: The Strategy of an I/O Instrument is configured using the iTools
Engineering Studio.
What is a LIN Function Block?
A LIN Database (.dbf) uses a block-structured approach to configuring
a control strategy, where a variety of ready-made function blocks
perform the processing required.
A function block is an instance of a reusable module of program code.
All function blocks exist in specific categories in the template library.
Each is dedicated to a particular type of processing operation, e.g. the
ADD2 template adds two numbers. In general, function blocks take in
analogue and/or digital signals via their inputs, process them in a
variety of ways and then pass the results on via their outputs. By
'wiring' the function blocks together, the signals can flow between
them to execute the control strategy.
What is Modbus?
Modbus is a communications protocol. Instruments that communicate
via the Modbus communications protocol require a Gateway, that can
be configured either as a Modbus master or a Modbus slave. It is
supported via Serial and TCP communications interface.
Clone Network Wizard User Guide
What is Modbus?8
The Modbus communication interface is built around messages. The
format of these Modbus messages depends on the type of physical
interface used. The same messages are used on both RS232 and
Modbus/TCP over Ethernet. The same protocol can be used regardless
of the connection type. This permits a device to communicate with
several Modbus nodes at once, even if they are connected with
different interface types, without the need to use a different protocol
for every connection.
When using more versatile network systems like TCP/IP over
Ethernet, the Modbus messages are embedded in packets with the
format necessary for the physical interface. In that case Modbus and
other types of connections can co-exist at the same physical interface
at the same time. Although the main Modbus message structure is
peer-to-peer, Modbus is able to function on both point-to-point and
multidrop networks.
Modbus Messages
Each Modbus message has the same structure. Four basic elements
are present in each message.
• Device address
This is the address of the instrument receiving the data.
• Function code
This is a code number defining message type.
• Data
This is a block of data with additional information.
• Error check
This is a Numeric check value to test for communication errors.
The sequence of these elements is the same for all messages, to make
it easy to parse the content of the Modbus message. The instrument
configured to operate as the master in the Modbus network always
initiates communications. It sends a message and, depending of the
contents of the message, a slave takes action and responds to it.
Addressing in the message header is used to define which device
should respond to a message.
Note: All other nodes on the Modbus network ignore the message if
the address field does not match their own address.
The instruments use Modbus registers and bits to structure the
instrument data. The Modbus registers and bits are simply a list of
data points. Generally, there is no pre-defined structuring of these
points into blocks or loops, etc., and most implementations define the
allocation of registers differently.
Communications between LIN and Modbus instruments require a
Gateway. This involves the mapping of data from the LIN Database to
the Modbus registers and digitals.
Clone Network Wizard User Guide
What is Profibus?9
What is Profibus?
Profibus is a communications protocol. Instruments that communicate
via this protocol allow the fast, cyclic, transfer of time critical data
from intelligent devices such as temperature controllers, I/O units,
drive, etc to a PLC or PC based controller, with a scan time of around
10mS.
Traditional PLC based control systems use a central processor unit
fitted in a rack, connected to I/O modules via an internal PLC
'backplane'. Terminals on the I/O modules are connected to the real
world using point to point cabling, ending at field terminal units. The
PLC scans the input modules cyclically and places the values from
them into registers in the central processor, where they are operated
on by ladder logic. Similarly, values from PLC registers are provided to
output modules and applied to physical outputs.
The simplicity of the wiring scheme makes for easier maintenance,
and provides flexibility to add new devices when and where needed.
Furthermore, instead of being tied to the offerings of a single vendor,
'best of breed', specialised, devices may be used, reducing the
processing load on the PLC. With devices located close to their point of
application, and closely coupled to it, they may be used to provide
feedback on their operation, reducing the need for planned
maintenance and allowing quality improvement using statistical
process control techniques.
Profibus DP provides fieldbus product offerings because it has proven
to be very easy to apply and understand, even for non specialists.
What is EI-Bisynch?
EI-Bisynch is a proprietary protocol based on the ANSI X3.28-2.5 A4
standard for message framing. Despite its name, it is an ASCII based
asynchronous protocol. Data is transferred using 7 data bits, even
parity, 1 stop bit.
Address
Each instrument has a configurable address consisting of two digits,
the first being a 'group' number 0 to 9, and the second a 'unit' number
0 to 9. There are, in principle, therefore 100 different addresses that
may be used, 00 to 99, although in some instruments, address 00 is
reserved for use in configuration mode, leaving addresses 01 to 99
available.
Mnemonics
EI-Bisynch identifies parameters within an instrument using what are
known as 'mnemonics'. These are usually two letter abbreviations for a
given parameter, for example PV for Process Variable, OP for Output,
SP for Setpoint, and so on.
Clone Network Wizard User Guide
What is EI-Bisynch?10
Channels
EI-Bisynch provides for 'channel' data. This would be used, for
example, when a single physical unit contains several independent
control loops, each having their own Process Variable, Setpoint, and
Output Power. In this case, the values for each loop are obtained by
specifying different channel numbers: '1', '2', etc.
The channel number, if used, is encoded as a single ASCII character
preceding the mnemonic, for example 1PV.
Clone Network Wizard User Guide
11
Chapter 3
OPC Servers
LINOPC Control Panel
The LINOPC Control Panel, provides a central environment to
configure and manage each LIN Port of the Networks in the Project.
This simplifies the ability to control and manage the LIN Port
connections, according to the live LIN connections that are fitted, by
allowing:
• the inspection of the LIN Ports from either a Network or Device
perspective
• the generation of LIN Ports
• the editing of LIN Ports, including the Protocol name, LIN Node
Address and IP Address, etc.
LINtools Engineering Studio
The LINtools Engineering Studio, provides a central environment to
configure an instrument Strategy. This simplifies the ability the
manage and control an instrument Strategy either offline or online by
allowing:
• the inspection of the Instrument
• the manipulation of an Instrument Strategy, using LIN Databases,
LIN Sequences and Actions
• the transfer of these configuration files for use in other
Instruments
• the download and control of Strategy files for use by the Real-Time
Instrument
Note: An existing Real-Time Instrument Strategy can be saved to a
Computer to allow offline configuration.
Clone Network Wizard User Guide
iTools Control Panel12
iTools Control Panel
The iTools Control Panel, provides a central environment to configure
and manage each Serial or TCP/IP Port of the Networks in the Project.
This simplifies the ability to control and manage the Serial or TCP/IP
Port connections, according to the live connections that are fitted, by
allowing:
• the inspection of the Ports from either a Network or Device
perspective
• the generation of Ports
• the editing of Ports, including the Protocol name, and Node
Address, etc.
iTools Control Panel (Serial Ports page) is used to configure the Serial
ports, i.e. Modbus, Profibus, EI-Bisynch or Modbus TCP/IP ports.
iTools Engineering Studio
The iTools Engineering Studio, provides a central environment to
configure an I/O instrument Strategy. This simplifies the ability the
manage and control an I/O instrument Strategy by allowing:
• the parameterisation and commissioning of the Instrument
• the cloning and monitoring of specific controllers and data
acquisition and management recorders
• the editing, and storing of complete controller configurations
• the configuration of data logging, process monitoring, modbus/TCP
(Ethernet) and modem connection
Note: iTools can be connected to a Modbus master and used configure
I/O Instruments on a Modbus network using Transparent Modbus
Access (TMA or TalkThru).
Clone Network Wizard User Guide
13
Chapter 4
Online Pages
Clone Network
This Utility is used to create a Network on the Computer
corresponding to the selected Network, already configured with an
OPC port name via the OPC Server applets'. This provides an
environment used for archiving, editing, updating, monitoring and
commissioning a set of instruments in any solution.
After all registered OPC Servers have been scanned, this dialog shows
the name of each configured Port. Each icon provides access to a
network of devices.
Select Network to Clone:
This shows the Network Ports that can be accessed by this Computer.
Select the Network Port name, to identify the Network that must be
cloned and click Next.
Foxboro PAC Store & Forward User’s Guide
Clone LIN nodes in this Network14
This shows the Port name of a Local Instrument
Network containing LIN Instruments located using the
LINOPC Server.
Note: With more than one user setting up ELIN
Networks on a shared Ethernet Network, a conflict of LIN
Node numbers could occur if the Default Protocol name,
NET, is used in a Network
This shows the Port name of a EuroMBus Network
containing Modbus Instruments located using the
Modbus server (iTools OPC Scope or EuroMBus). A
EuroMBus Icon indicates that instruments found in this
Network are communicating using a Modbus or
EI-Bisynch protocol.
Note: This will also locate devices communicating via a
Profibus Network connected to a LIN Node maste. These
devices are exposed as Modbus slaves using the LIN
Nodes upwards Modbus link.
Clone LIN nodes in this Network
This shows a list of all LIN Nodes communicating via the selected
Network located by the LINOPC server.
Note: If a redundant pair of processors is located, only the Primary
device will be displayed.
Each listed LIN Node, can be quickly identified by the parameters
displayed, Instrument Name, Instrument Type, and LIN Node
Address.
Note: Computer Port nodes, e.g. NTSE and PCALIN, will NOT be
cloned.
What is the LINOPC server?
The LINOPC Server provides an OPC interface to the LIN Blocks of
the Strategy files in the Instrument Folder, from any OPC Client.
Clone Instrument Files
Use these radio buttons define the group of files that will be included
when cloning the selected Network.
Foxboro PAC Store & Forward User’s Guide
Clone other nodes in his Network15
Option
Operation
All files
Select this to copy ALL files,
Configuration (.dbf, .uic), Batch Files
(.uyb), Setpoint Programmer Files (.uys),
etc. stored in the Instrument to a new
Instrument Folder in the Project
structure on the Computer when the
Network is cloned.
The main strategy
file(s)
Select this to copy files that match the
LIN Database, .dbf, name, e.g.
T2550_01.dbf, T2550_01.ofl,
T2550_01.gwf, or T2550_01.uys.
No files - only create
folders
Select this to create the Instrument
Folder ONLY.
Any files in the Instrument will NOT be
copied to the new Instrument Folder on
the Computer when the Network in
cloned.
Overwrite Existing
files
When this checkbox is set, files that
currently exist in the Project structure on
the Computer will NOT be replaced with
the files in the Instrument currently
connected to the Network in the live
plant/system being cloned.
Note: This only applies to cloning LIN
Instrument Strategy files, and is
automatically disabled when the No files Only create folders option is selected.
Clone other nodes in his Network
This shows a list of Nodes communicating via the selected Network
located by the Modbus server.
Note: This process can take up to 3 or 4 seconds per node address
unless the Modbus Server is configured to start-up with a preset list of
nodes.
Each listed Node, can be quickly identified by the parameters
displayed, Instrument Name, Instrument Type, and Address.
Some TCP/IP devices may respond at multiple addresses, i.e. a
Recorder responds at address 255, the only slave address (UnitID)
located at an specific IP Address, but 'Hub' type devices may serve
multiple slave addresses (UnitIDs) on a single IP Address.
Foxboro PAC Store & Forward User’s Guide
More?16
Note: Any LIN Node with an IP Address located on this Port acts as a
TCP/IP 'Hub' communicating with serially connected devices.
Stop Scan/Refresh button
Use this button to cancel the current search for addresses on the
selected Network by the Modbus server, either when sufficient Nodes
have been found or to completely restart the search.
When stopped, this button shows 'Refresh', which can be used to
completely restart the search for addresses on the selected Network.
Note: Once the search is complete, use the 'Finish' button to copy and
overwrite any existing Clone files, .uic, in the Project structure on the
Computer.
Make Profibus folders checkbox
When this checkbox is set, Profibus Instrument Folders are
automatically created in the Project structure on the Computer for
devices communicating via the Profibus network connected to a LIN
Node master.
Note: Devices communicating via the Profibus network connected to a
LIN Node master are exposed as Modbus slaves using the LIN Nodes
upwards Modbus link.
What is the Modbus Server?
The Modbus server, iTools OPC Scope or EuroMBus, provides an OPC
interface to the pre-configured address space of one or more
instruments, from any OPC Client.
Note: OPC clients are typically software packages such as
Wonderware's InTouch, or Intellution's FIX32, but could be the iTools
Series 2000 controls running in an OPC Client container application.
More?
This dialog confirms the required parameters have been added to the
Project.
Press the More button to repeat the process, and create further
Instruments Folders in the Project structure and copy Instrument
Files from a Network in the system.
Eventually, when the appropriate Networks have been cloned, use the
Close button to initiate the 'Build' process to ensure all changes can be
used in the instrument or by another application.
Foxboro PAC Store & Forward User’s Guide
More?17
Note: Additional Network Ports can be added at any time using the
relevant Control Panel applets'. However, this Utility and the relevant
Server must be shutdown and restarted after the Server has been
configured.
Foxboro PAC Store & Forward User’s Guide
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©Copyright Invensys Systems, Inc 2011
ArchestrA, Eurotherm, the Invensys Wonderware logo, EurothermSuite, Eycon, EurothermSuite, Invensys, InTouch, Wonderware and Wonderware Logger
are trademarks of Invensys plc, its subsidiaries and affiliates. All other brands may be trademarks of their respective owners.
All rights are strictly reserved. No part of this document may be reproduced, modified or transmitted in any form by any means, neither may it be stored in
a retrieval system other than for the purpose to act as an aid in operating the equipment to which the document relates, without the prior written permission of Invensys Eurotherm Linited.
Invensys Systems, Inc pursues a policy of continuous development and product improvement. The specifications in this document may therefore be
changed without notice. The information in this document is given in good faith, but is intended for guidance only. Invensys Systems, Inc will accept no
responsibility for any losses arising from errors in this document.
HA029430 (CN27733)
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