Bristol Babcock Network 3000 User manual

Network 3000
Communications
Configuration Guide
(A user's guide to software configuration
and troubleshooting for the Network 3000
Communications system.)
Bristol Babcock
D5080 Issue: April, 2001

The information in this document is subject to change without notice. Every effort has been
made to supply complete and accurate information. However, Bristol Babcock assumes no
responsibility for any errors that may appear in this document.
Bristol Babcock does not guarantee the accuracy, sufficiency or suitability of the software
delivered herewith. The Customer shall inspect and test such software and other materials to
his/her satisfaction before using them with important data.
There are no warranties, expressed or implied, including those of merchantability and fitness
for a particular purpose, concerning the software and other materials delivered herewith.
Request for Additional Instructions
Additional copies of instruction manuals may be ordered from the address below per attention
of the Sales Order Processing Department. List the instruction book numbers or give the
complete model, serial or software version number. Furnish a return address that includes
the name of the person who will receive the material. Billing for extra copies will be according
to current pricing schedules.
ACCOL is a trademark and Bristol is a registered trademark of Bristol Babcock. Other
trademarks or copyrighted products mentioned in this document are for information only, and
belong to their respective companies, or trademark holders.
Copyright (c) 2001, Bristol Babcock, 1100 Buckingham St., Watertown, CT 06795. No part of
this manual may be reproduced in any form without the express written permission of Bristol
Babcock.
Notice
Copyright Notice

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A Few Words about Bristol Babcock
For over 100 years, Bristol® has been providing innovative solutions for the measurement
and control industry. Our product lines range from simple analog chart recorders, to
sophisticated digital remote process controllers and flow computers, all the way to turnkey
SCADA systems. Over the years, we have become a leading supplier to the electronic gas
measurement, water purification, and wastewater treatment industries.
On off-shore oil platforms, on natural gas pipelines, and maybe even at your local water
company, there are Bristol Babcock instruments, controllers, and systems running year-in
and year-out to provide accurate and timely data to our customers.
Getting Additional Information
In addition to the information contained in this manual, you may receive additional
assistance in using this product from the following sources:
Contacting Bristol Babcock Directly
Bristol Babcock's world headquarters are located at 1100 Buckingham Street, Watertown,
Connecticut 06795, U.S.A. Our main phone numbers are:
[phone]
[phone] (FAX)
Regular office hours are Monday through Friday, 8:00AM to 4:30PM Eastern Time, excluding
holidays and scheduled factory shutdowns. During other hours, callers may leave messages
using Bristol's voice mail system.
Telephone Support - Technical Questions
During regular business hours, Bristol Babcock's Application Support Group can provide
telephone support for your technical questions.
For technical questions regarding ACCOL, Open BSI, or UOI call [phone].
For technical questions regarding Bristol's OpenEnterprise product, call [phone] or
e-mail [e-mail]
For technical questions regarding Bristol's Enterprise Server® / Enterprise
Workstation® products, call [phone].
For technical questions regarding TeleFlow products call [phone].
For technical questions regarding Network 3000 hardware products call [phone].
For technical questions about ControlWave call [phone] or [phone].
You can e-mail the Application Support Group at: [email protected]
The Application Support Group maintains an area on our web site for software updates and
other technical information. Go to: www.bristolbabcock.com/services/techsupport/

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For assistance in interfacing Bristol Babcock hardware to radios, contact Communication
Technologies in Orlando, FL at [phone] or [phone].
Telephone Support - Non-Technical Questions, Product Orders, etc.
Questions of a non-technical nature (product orders, literature requests, price and delivery
information, etc.) should be directed to the nearest sales office (listed below) or to your
Bristol-authorized sales representative.
Major U.S. Sales Offices Major International Sales Offices:
Watertown, CT [phone] Bristol Babcock Ltd (UK): (441) 562-820-001
Birmingham, AL [phone] Bristol Babcock, Canada: [phone]
Ontario, CA [phone] Bristol Babcock Asia Pacific 61-8-9791-3654
Farmington, NM [phone] BBI, S.A. de C.V. (Mexico) [phone]
Houston, TX [phone]
Richardson, TX [phone]
Please call the main Bristol Babcock number (860-945-2200) if you are unsure which office
covers your particular area.
Visit our Site on the World Wide Web
For general information about Bristol Babcock and its products, please visit our site on the
World Wide Web at: www.bristolbabcock.com
Training Courses
Bristol Babcock’s Training Department offers a wide variety of courses in Bristol hardware
and software at our Watertown, Connecticut headquarters, and at selected Bristol regional
offices, throughout the year. Contact our Training Department at [phone] for course
information, enrollment, pricing, and schedules.

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Who Should Read This Manual?
This document is intended to be read by a system engineer or technician who is
configuring or trouble shooting Network 3000 communications. It assumes that
controllers have been installed, ACCOL programming has been completed and the
controllers have running ACCOL loads, and that all network cabling has been
connected and tested.
NOTE: Although some of the information in this book is also applicable to
ControlWave-series controllers, they are not part of the Network 3000 product line,
and so will not be covered as part of this book.
This document assumes familiarity with the following subjects:
•Users must have some level of knowledge regarding how their Network 3000
hardware is to be used. In particular, they should be familiar with the data
update requirements for their particular process. Users should also have access
to whatever drawing or document specifies the addresses of each controller.
•Users must be familiar with using certain Open BSI Utilities programs such as
the Open BSI Setup Tool (Open BSI 2.3 or earlier) or NetView (Open BSI 3.0 or
newer), and DataView. For information on these subjects, see the Open BSI
Utilities Manual (Ver 2.x document# D5076 or Ver 3.x/4.x document# D5081).
•Users may need to alter signal values, and certain other parameters in their
ACCOL load as part of the Network tuning process. As such, some familiarity
with ACCOL signals is helpful. See An Introduction to ACCOL (document#
D4056) and the ACCOL II Reference Manual (document# D4044) for details.
•Users with Open BSI 2.3 (or earlier) may need to edit their Network Topology
files using the NETTOP program. This subject is discussed in the NETTOP and
NETBC User Manual (document# D4057). Users with Open BSI 3.0 (or newer)
may need to edit their Network Definition (NETDEF) files using NetView, and
specify RTU configuration parameters using LocalView. NetView and LocalView
are discussed in the Open BSI Utilities Manual (Ver 3.x/4.xdocument# D5081).

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BLAN

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Table of Contents
Chapter 1 - Introduction ............................................................................................ 1-1
BSAP Networks.......................................................................................... 1-1
IP Networks................................................................................................ 1-4
Converting NETTOP Files For Use Below An NHP................................. 1-8
Overview of Configuration.........................................................................1-9
Is this still unclear? ........................................................................ 1-10
Chapter 2 - Guidelines For Setting Up BSAP Networks..........................................2-1
A Quick Review of BSAP Network Terminology ...................................... 2-1
Things to Be Aware of When Defining Your Network .............................2-3
Chapter 3 - Guidelines For Setting Up IP Networks................................................3-1
A Discussion of IP Network Terminology ................................................. 3-1
What is A Network Host PC (NHP)?.........................................................3-2
What is the Format of IP Addresses?........................................................3-6
Things to Be Aware of When Defining Your Network ........................... 3-11
Chapter 4 - Guidelines For Configuring the BSAP Data Link ................................ 4-1
Setting Up the Master Ports (including Port, Poll Period, #NDARRAY) 4-2
Setting Up the Slave Ports (including Port, Poll Period)....................... 4-14
Using Advanced Poll Period Parameters ................................................ 4-16
Setting Up Data Link Parameters At the Network Master................... 4-18
BSAP Local Line (used for special applications only) ............................ 4-25
Configuration Issues For Modems........................................................... 4-26
Configuration Issues For Radios ............................................................. 4-37
Chapter 5 - Guidelines For Configuring the IP Data Link ...................................... 5-1
Declaring An IP Port in ACCOL Workbench............................................ 5-2
Specifying the Characteristics of the IP Port(s)........................................ 5-3
Defining the IP System Parameters.......................................................... 5-6
Chapter 6 - Application Notes ................................................................................... 6-1
Peer-to-Peer Communication (BSAP Master/Slave Modules).................. 6-1
Peer-to-Peer Communication (IP_Client/IP_Server Modules)................. 6-4
Setting Task Rates..................................................................................... 6-7
Setting Task Priorities............................................................................... 6-7
ACCOL Load Design Issues....................................................................... 6-8
Remote Process I/O..................................................................................... 6-8
Communication I/O Buffers....................................................................... 6-8
Report By Exception (RBE)........................................................................ 6-9
Open BSI Utilities (Version 2.3 or earlier).............................................. 6-10
Open BSI Utilities (Version 3.0 or newer)............................................... 6-11
Open BSI Scheduler and Open BSI Data Collector Array/Archive
Collection (All versions)....................................................................... 6-12

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OpenEnterprise.......................................................................................... 6-12
Enterprise Server..................................................................................... 6-13
Intellution®FIX®.................................................................................... 6-13
Iconics Genesis ......................................................................................... 6-14
Chapter 7 - Trouble-Shooting Network 3000 Communications............................... 7-1
Trouble-Shooting Techniques.................................................................... 7-2
Frequently Asked Questions Concerning Communication Problems.... 7-22
Checklist for Diagnosing Communication Problems.............................. 7-30
Appendix A - Summary of Port Types.......................................................................A-1
Appendix B - Message Traffic....................................................................................B-1
Glossary .....................................................................................................................G-1

Chapter 1 - Introduction
Network 3000 Communications Configuration Guide Page 1-1
Introduction
Bristol Babcock’s Network 3000-series of remote process controllers (DPC 3330s,
RTU 3305s, 3530s, etc.) run ACCOL loads to measure or control some part of a
process. Besides performing these control duties, each Network 3000 controller is
designed to operate as a node in a data network.
The data transmitted through the network is sent according to a pre-defined format
called a network communication protocol. There are two basic types of network
protocols supported by Bristol devices.1BSAP (Bristol Synchronous/Asynchronous
Protocol) is a Bristol Babcock proprietary protocol which is supported by all
Network 3000 devices2. IP (Internet Protocol) is a more industry-standard protocol,
and is supported by many types of computers world-wide. Currently the 386EX
Protected Mode DPC 3330/DPC 3335 controllers with Ethernet hardware installed
are the only Network 3000-series controllers which support the IP protocol. Bristol
Babcock’s ControlWave controller also supports IP, however, ControlWave
communications are not covered in this book.
In addition to the choice between these two protocols, it is possible to have separate
BSAP and IP networks as part of the same overall system, or to have a BSAP
network serve as a sub-network of an IP node.
BSAP Networks
At the top of a BSAP network is a host computer, called the network master. The
network master is usually a PC Workstation running human-machine interface
(HMI) or supervisory control and data acquisition (SCADA) software such as
Intellution®FIX®, Iconics Genesis, or OpenEnterprise software, in combination
with Bristol Babcock’s Open Bristol System Interface (Open BSI) software. The
HMI/SCADA software at the Network Master allows the operator to view what is
going on in the network through graphical displays, trends, or printed logs and
reports.3Below the Network Master are the remote process controllers.
The controllers in the network are organized into a hierarchical structure of one or
1In addition to these standard types, certain Bristol controllers support ’custom’ protocols for
communication with various foreign devices, PLC’s etc. See the ACCOL II Custom Protocols Manual
(document# D4066) for details.
2Some non-Bristol devices can be made to communicate via BSAP, provided that special
communication software programs called communication drivers are created for them.
3Pseudo Master devices can be connected to lower levels of the network to view data. These are
similar to Network Masters, however, they are not considered to be ‘nodes’in the network, and so do
NOT appear in the NETTOP/NETDEF files.

Chapter 1 - Introduction
Page 1-2 Network 3000 Communications Configuration Guide
more levels. A BSAP network can support up to six levels (not including the
Network Master referred to as level 0.) The number of levels required varies
depending upon the size and scope of your project. Each controller is assigned an
address to allow data to be routed correctly. Addresses and network structure are
specified using either the Network Topology (NETTOP) Program or the Open
BSI NetView program.4The network information stored internally by a node is
called its Node Routing Table, and is updated whenever an ACCOL load is
downloaded, or a valid time synchronization message is sent.
The level of a given controller specifies how many intervening communication
lines there are between it, and the network master. The first level controllers are
called top-level nodes because data must travel over only 1 communication line to
reach the Network Master. A communication line can consist of a direct cable
connection, a radio or satellite link, or a dial-up modem connection. Each
communication line is configured independently with its own baud rate, poll
period, timeout, etc.
Each controller (node) serves as a master to the nodes connected to it on the level
immediately below, and as a slave to the node connected to it on the level
immediately above. A node can have many slaves but only one master. Each master
polls its slaves for data, which it retains in memory until it is polled by its master.
4The choice of whether NETTOP or NetView is used to configure your network depends on the
software in your system. If you are using DOS-based ACCOL Tools (AIC, ABC, etc.), or Open BSI
Utilities versions lower than 3.0, then NETTOP must be used. If you have Open BSI Utilities 3.0 (or
newer) then NetView must be used. If you want to use a mixture of older DOS-based ACCOL Tools
with Open BSI 3.1 (or newer) you will need to use NetView, and then use the NETBCX utility to
generate network files compatible with the DOS-based tools.