GE 90*-30 PLC Series, LONWORKS PE693BEM350, LONWORKS PE693BEM351, LONWORKS PE693BEM352 User Manual

Programmable Control Products

User's Manual

I/O

PEN*

Ser ies 90*-30 PLC
LONW

GFK-1322 January 2010

ORKS*

Bus Interface Module

GFL-002

Warnings, Cautions, and Notes

as Used in this Publication

Warning

Warning notices are used in this publication to emphasize that hazardous voltages,
currents, temperatures, or other conditions that could cause personal injury exist in this
equipment or may be associated with its use.

In situations where inattention could cause either personal injury or damage to equipment,
a Warning notice is used.

Caution

Caution notices are used where equipment might be damaged if care is not taken.

Note: Notes merely call attention to information that is especially significant to

understanding and operating the equipment.

This document is based on information available at the time of its publication. While efforts
have been made to be accurate, the information contained herein does not purport to cover all
details or variations in hardware or software, nor to provide for every possible contingency in
connection with installation, operation, or maintenance. Features may be described herein
which are not present in all hardware and software systems. GE Intelligent Platforms assumes
no obligation of notice to holders of this document with respect to changes subsequently made.

GE Intelligent Platforms makes no representation or warranty, expressed, implied, or statutory
with respect to, and assumes no responsibility for the accuracy, completeness, sufficiency, or
usefulness of the information contained herein. No warranties of merchantability or fitness for
purpose shall apply.

* indicates a trademark of GE Intelligent Platforms, Inc. and/or its affiliates. All other

trademarks are the property of their respective owners.

©Copyright 2009 GE Intelligent Platforms, Inc.

All Rights Reserved

Support

Technical Support

If you purchased this product through an Authorized Channel Partner, please contact them directly.

General Contact Information

Online Technical Support and GlobalCare: 1Hwww.ge-ip.com/support
Additional information:

2H 3Hwww.ge-ip.com

Technical Support

If you have technical problems that cannot be resolved with the information in this guide, please
contact us by telephone or email, or on the web at

4Hwww.ge-ip.com/support

Americas

Online Technical Support: 5H6Hwww.ge-ip.com/support
Phone: [phone]
International Americas Direct Dial: 1-434-978-5100
Technical Support Email:
Customer Care Email:

[e-mail]

[e-mail]

Primary language of support: English

Europe, the Middle East, and Africa

Online Technical Support: 11H12Hwww.ge-ip.com/support
Phone: [phone]
Technical Support Email:
Customer Care Email:

[e-mail]

[e-mail]

Primary languages of support: English, French, German, Italian, Czech, Spanish

Asia Pacific

Online Technical Support: 17H18Hwww.ge-ip.com/support
Phone: [phone]
[phone] (India, Indonesia, and Pakistan)
Technical Support Email:

Customer Care Email:

[e-mail] (China)
[e-mail] (Japan)
[e-mail] (remaining Asia customers)
[e-mail]
[e-mail] (China)

This manual describes the features and operation of the Series 90™ PLC LONW
Interface Module (PE693BEM350, 351, and 352). It also provides the configuration and
programming information needed to complete the interface between a Series 90-30 programmable
logic controller (PLC) and a L

Content of this Manual

ONWORKS

network.

Preface



®

ORKS

Bus

Chapter 1. Module Overview: Provides overviews of the L
(LBIM) and the Echelon

®

LONW

ORKS

network.

ONWORKS

Bus Interface Module

Chapter 2. Operation: Describes the operation of the LBIM.
Chapter 3. Hardware Installation: Explains how to install an LBIM in a Series 90 rack.

Provides recommendations for connecting an LBIM node to a L

ONWORKS

network.

Chapter 4. Configuration: Explains how to configure the module network interface and set
configuration parameters. Describes network binding.

Chapter 5. Troubleshooting: Lists problem symptoms and corrective actions. Describes the use
of Valid bits for network variables.

Appendix A. Specifications: Lists physical specifications and electrical and environmental
requirements.

Appendix B: Standard Network Variable Types: Lists the Standard Network Variable Types
supported by the LBIM as of the time this manual was published. (Refer to the most recent version
of The SNVT Master List and Programmer’s Guide — 005-0027-01 — for a current listing.)

Appendix C. Configuration File Specifications: Contains reference information pertaining to
the files that are created by the configuration software.

Appendix D. Glossary: Provides definitions of acronyms and terminology.
Appendix Q. Quick Start Guide. Describes the steps necessary to get your LBIM up and running

quickly. To use this guide, you should have a working knowledge of L

ONWORKS

network

technology and GE Series 90-30 PLCs.



Echelon, Neuron, LONT

™ Logicmaster and Series 90 are trademarks of GE corporation.

GFK-1322A v

, and LONW

ALK

are registered trademarks of Echelon Corporation.

ORKS

Preface

Related Publications

For more information about GE Series 90 PLCs and related products, refer to the following:

Series 90™-30 Programmable Controller Installation Manual (GFK-0356)
Logicmaster™ 90 Series 90-30/20/Micro Programming Software User’s Manual

(GFK-0466).

Series 90™-30/20/Micro Programmable Controllers Reference Manual (GFK-0467).
Series 90™

-30, 70, PLC Products, Genius® I/O Products, Field Control™ Distributed I/O

& Control Products, GE Product Approvals, Standards, General Specifications

(GFK-0867B or later)

Information about L

ONWORKS

networks can be found in the following documents, which are

available from Echelon Corporation and on the World Wide Web at www.echelon.com.

ONWORKS

L
Enhanced Media Access Control with Echelon’s L

ONTALK

L

ONTALK

L

Installation Overview (005-0006-01)

ONTALK

Response Time Measurements (005-0010-01)
Protocol (005-0017-01)

Protocol (005-0001-01)

The SNVT Master List and Programmer’s Guide and The SCPT Master List (005-0027-01)
Junction Box and Wiring Guidelines for Twisted Pair L
Optimizing L

ONMARK

L

ONMARK

L

Layers 1—6 Interoperability Guidelines (078-0014-01)
Application Layer Interoperability Guidelines (078-0120-01)

ONTALK

Response Time

(005-0011-01)

ONWORKS

Networks (005-0023-01)

vi Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual–June 1997 GFK-1322A

Contents

Chapter 1 Overview.......................................................................................................... 1-1

LONW

Network Overview ....................................................................................1-3

ORKS

Bus Interface Module Overview ....................................................................................1-5

Controls and Indicators...........................................................................................1-6

Connectors .............................................................................................................1-7

Functional Characteristics.......................................................................................1-8

Configuration .........................................................................................................1-8

Diagnostics.............................................................................................................1-8

What You Need to Operate the Bus Interface Module....................................................1-9

Chapter 2 Operation......................................................................................................... 2-1

Overview of Operation..................................................................................................2-2

Architecture............................................................................................................2-2

Operating Modes .................................................................................................... 2-4

Powerup Sequence........................................................................................................2-4

Sweep Operation...........................................................................................................2-6

Chapter 3 Hardware Installation..................................................................................... 3-1

Rack Location for the Bus Interface Module..................................................................3-2

Module Installation and Removal ..................................................................................3-3

Module Installation.................................................................................................3-3

Module Removal.....................................................................................................3-3

Network Installation......................................................................................................3-4

Network Wiring Guidelines.....................................................................................3-4

Terminating the Network ........................................................................................3-4

Connecting a Programmer.............................................................................................3-6

Chapter 4 Configuring the LBIM.................................................................................... 4-1

Overview......................................................................................................................4-2

Using the LBIM Configuration Software.......................................................................4-4

Installation and Startup...........................................................................................4-4

Editing a Configuration...........................................................................................4-5

Binding Network Variables .........................................................................................4-23

GFK-1322A vii

Module Configuration...........................................................................................4-6

Reference Configuration.....................................................................................4-11

Field Definitions..........................................................................................4-11

Defining Variables.............................................................................................. 4-13

Menu Commands................................................................................................4-18

File Menu .................................................................................................... 4-20

Tools Menu..................................................................................................4-20

Contents

Chapter 5 Troubleshooting............................................................................................... 5-1

Startup and Configuration.............................................................................................5-2

Valid Bits .....................................................................................................................5-3

Wink Function..............................................................................................................5-3

Appendix A Specifications................................................................................................... A-1

Module Specifications.................................................................................................. A-2

Power Requirements ..............................................................................................A-2

Environmental Requirements..................................................................................A-2

Agency Approvals .................................................................................................A-2

Microprocessor Configuration................................................................................ A-3

Interface Specifications................................................................................................ A-4

Serial Communications Protocol ............................................................................A-4

Network Communications...................................................................................... A-4

Series 90-30 Backplane Interface ...........................................................................A-4

Appendix B Standard Network Variable Types.................................................................B-1

Appendix C Configuration File Specifications....................................................................C-1

Network Interface and PLC Mapping........................................................................... C-1

Network Variable Parameter Configuration.................................................................. C-2

Configuration Parameter Types.................................................................................... C-4

Appendix D Glossary...........................................................................................................D-1

Commonly Used Acronyms and Abbreviations .............................................................D-2

Glossary of Terms........................................................................................................D-3

Appendix E Quick Start Guide.......................................................................................... Q-1

Module Description...................................................................................................... Q-2

Functional Characteristics......................................................................................Q-2

Controls and Indicators..........................................................................................Q-4

Connectors ............................................................................................................Q-5

Diagnostics............................................................................................................Q-5

What You Need to Operate the Bus Interface Module...................................................Q-6

Hardware Installation and Powerup..............................................................................Q-7

Module Configuration/Network Installation.................................................................. Q-8

PLC Configuration.....................................................................................................Q-11

Summary................................................................................................................... Q-12

viii Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual–June 1997 GFK-1322A

Contents

Figure 1-1. Sample LONW

Network Configuration..........................................................................1-2

ORKS

Figure 1-2. Topology Examples...............................................................................................................1-4

Figure 1-3. Series 90 PLC L

ONWORKS

Bus Interface Module..................................................................1-5

Figure 2-1. Overview of Bus Interface Module Operation.........................................................................2-3

Figure 2-2. Bus Interface Module Powerup Sequence...............................................................................2-5

Figure 3-1. Module Installation................................................................................................................3-3

Figure 3-2. Module Removal ...................................................................................................................3-3

Figure 3-3. Cabling for Bus and Loop Networks......................................................................................3-5

Figure 3-4. Connections for LBIM Configuration.....................................................................................3-6

Figure 3-5. Computer to L

ONWORKS

Network Connections for LBIM Configuration...............................3-7

Figure 4-1. Example: Determining What Network Variable Types are Needed..........................................4-2

Figure 4-2. Example: Assigning Network Variables Types to the LBIM and PLC Registers......................4-3

Figure 4-3. Example: Installing the LBIM in the Network and Binding the Variables..............................4-23

Figure Q-1. Sample Network Configuration............................................................................................Q-3

Figure Q-2. Example: Identifying the Network Variables Needed to Interface with the PLC ..................... Q-8

Figure Q-3. Example: Assigning Network Variables to the Module and the PLC Registers....................... Q-9

Figure Q-4. Example: Installing the Module in the Network and Binding the Variables ..........................Q-10

GFK-1322A Contents ix

Contents

Table 1-1. Bus Interface Module Products ...............................................................................................1-1

Table 1-2. Supported Topologies ............................................................................................................. 1-3

Table 1-3. LBIM Controls and Indicators.................................................................................................1-6

Table 1-4. LBIM Connectors...................................................................................................................1-7

Table 1-5. Pin Assignments for RS-422 Port............................................................................................1-7

Table 1-6. LBIM Functional Characteristics ............................................................................................ 1-8

Table 1-7. Compatible CPU Models and Logicmaster 90 Software Versions...........................................1-10

Table 1-8. Choosing a Network Binding Tool.........................................................................................1-10

Table 1-9. Network Interface Configuration...........................................................................................1-10

Table 4-1. Configuration Editor Fields...................................................................................................4-10

Table 4-2. Network Variable Fields in the Network Variable Editor........................................................4-17

Table 4-3. Configurable Network Image Parameters ..............................................................................4-24

Table 5-1. Troubleshooting......................................................................................................................5-2

Table B-1. SNVTs Supported by the Bus Interface Module..................................................................... B-1

Table C-1. Network Variable Definition File........................................................................................... C-1

Table C-2. Configuration Parameter Value File....................................................................................... C-2

Table C-3. Configuration Parameter Template File ................................................................................. C-2

Standard Table C-4. Configuration Memory Budget................................................................................ C-2

Table C-5. PLC I/O Table Configuration................................................................................................ C-3

Table C-5. - Continued........................................................................................................................... C-4

Table Q-1. Compatible CPU Models and Logicmaster 90 Software Versions...........................................Q-6

Table Q-2. Choosing a Network Binding Tool......................................................................................... Q-6

x Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual–June 1997 GFK-1322A

Chapter

1

Overview

The Series 90 PLC LONW
GE Series 90-30 PLC (programmable logic controller) and an Echelon L
network. The LBIM maps network variables into specific PLC register locations. It can support up
to 244 network variables (240 can be configured by the user), and map these network variables
into the %I, %Q, %AI, and %AQ PLC memory references. The Module adheres to the

Layers 1—6 Interoperability Guidelines

network
A L

ONWORKS

in a wide range of control network applications. L
architecture, in which intelligent control devices, called nodes, communicate with each other
using the L
microcontroller with the communications medium, and embedded intelligence that implements
the protocol and performs control functions. Figure 1-1 illustrates a sample network configuration
that uses an LBIM to communicate with a Series 90-30 PLC.

An individual node usually performs a simple task. Devices such as proximity sensors, switches,
relays, and motor drives can be nodes on a network. The network controls the interaction of the
nodes to perform a complex application, such as controlling a manufacturing line or automating a
building.

The LBIM can interface with networks that use twisted pair cabling . The LBIM contains a
transceiver that provides a physical communication interface between the module and a
L

ONWORKS

supported.

network can range in size from two to tens of thousands of devices and can be used

®

ONTALK

network. The type of embedded transceiver determines the network topology

protocol. Each node consists of a physical interface that couples the node

Bus Interface Module (LBIM) provides an interface between the

ORKS

ONWORKS

(078-0120-01)for the interface to the L

ONWORKS

technology uses peer-to-peer

ONWORKS

ONMARK

L

Table 1-1. Bus Interface Module Products

Catalog No. Embedded Transceiver Topologies Supported

PE693BEM350

PE693BEM351
PE693BEM352

The following topics are presented in this chapter:



L

ONWORKS



Bus Interface Module Overview..................................................................................1-5

GFK-1322A 1-1

TP/FT-10 Free

(Bus, Star, Loop, Others,

Combinations)
TP/XF-78 Bus/Loop
TP/XF-1250 Bus/Loop

Network Overview...................................................................................1-2

1



What You Need to Operate the Bus Interface Module ................................................. 1-9

CONFIGURATION
PORT

I/O DEVICES

LONTALK

ADAPTOR

Series 90-30

CPU

NODE NODE NODE

LON

I/O I/O

BIU

BIM

FREE TOPOLOGY NETWORK

SUBNET A

POWER LINE NETWORK

I/O DEVICES

ROUTER

NODENODE NODE

Figure 1-1. Sample LONW

1-2 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

ORKS

Network Configuration

SUBNET B

1

LONW

ORKS

Network Overview

A control network consists of intelligent control devices, called nodes, that communicate using a
common protocol. Each node in the network contains embedded intelligence that implements the
protocol and performs control functions. In addition, each node includes a physical interface that
couples the node’s microcontroller with the communications medium.

In a L

ONWORKS

pair, power line, fiber optic cable, coaxial cable, RF, or infrared. At the heart of each node is the
Neuron
protocol that ensures that nodes can interoperate using an efficient and reliable communications
standard. Because Neuron chips can be connected directly to the sensors and outputs that they
supervise, a single Neuron chip will process sensor/output status, execute control algorithms, and
communicate with other Neuron chips.

The L
different manufacturers to communicate with each other. Echelon’s

Types

pressure, temperature, and volume. The LBIM supports SNVTs that are less than 32 bytes in
length, and are defined in

The LBIM contains a transceiver that provides a physical communication interface between the
module’s Neuron chip and a L
based on the TP/XF-T78 and TP/XF-1250 transceivers, and free topology, based on the TP/FT-10
transceiver. The free topology allows more options for network design. Table 1-2 lists the
topologies supported by each type of LBIM. Figure 1-2 illustrates the supported topologies.

®

chip which contains the LONT

ONTALK

(SNVTs) provide standard units of measurement for common control quantities, such as

network, the nodes communicate over one or more media such as twisted wire

protocol, a complete seven-layer communications

ALK

protocol uses I/O points, known as

The SNVT Master List and Programmers Guide

ONWORKS

network. The LBIM supports bus and loop topologies,

network variables

, to allow devices from

Standard Network Variable

(005-0027-01).

Table 1-2.

Catalog No. Transceiver Topology Network Characteristics

PE693BEM350

PE693BEM351

PE693BEM352

TP/FT-10 Free

TP/XF-78 Bus/Loop Bit Rate: 1.25Mbps

TP/XF-1250 Bus/Loop Bit Rate: 78Kbps

Supported Topologies

(Bus, Star, Loop,
Others, Combinations)

Bit Rate: 78Kbps
Distance: 500m free topology, 2,700m with doubly

terminated bus. Distance can be multiplied with
repeaters.

No. of Nodes: up to 64
Other: Transformer-isolated; high impedance when

unpowered

Distance: 500m (0.3m stubs)
No. of Nodes: up to 64
Other: Transformer-isolated

Distance: 2000m (3m stubs)
No. of Nodes: up to 64
Other: Transformer-isolated

GFK-1322A Chapter 1 Overview 1-3

1

Bus

Loop

NNN

TT

N

N N

N

S

NN

Free

T Termination Network
N Node

Switch and Termination Node

S

(closes loop when activated)

Figure 1-2. Topology Examples

N N

NN

T

N

NN

S

1-4 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

Bus Interface Module Overview

The LBIM is a standard, rack-mounted Series 90-30 PLC module. (The table on page 1-10 lists
compatible CPUs.) The module plugs easily into the PLC’s backplane or into a remote PLC
baseplate. The latch on the bottom of the module secures it in position.

There are no DIP switches or jumpers to set on the LBIM. It is configured using the IOPEN.EXE
configuration software, provided with the module on floppy disk. Procedures for configuration are
provided in Chapter 4.

1

a45599

LONWORKS
Bus
Interface
Module

N

E

T
W
O

R

K

COM

PORT

RS-422

PWR
OUT

MSG
IN

MSG
SVC

SERVICE

Figure 1-3. Series 90 PLC LONW

GFK-1322A Chapter 1 Overview 1-5

ORKS

Bus Interface Module

1

Controls and Indicators

The only external control is the SERVICE pushbutton. The LEDs on the front of the LBIM
indicate its operating status.

Table 1-3. LBIM Controls and Indicators

SERVICE Momentary contact

PWR Lighted (Power) +5 VDC primary power is present at the LBIM’s logic

OUT MSG Flashes briefly (Outbound Message) An update message for a bound network

Switch Type Function

When pressed, the LBIM’s Neuron chip broadcasts its unique 48-

pushbutton

bit Neuron identification code and program identifier to the

ONWORKS

L
installation of the LBIM in the L

network. This function is used to facilitate

ONWORKS

Indicator State Meaning

circuitry.

variable is sent by the LBIM to the L

network.

ONWORKS

network.

Lighted briefly Powerup sequence in process.

The configuration parameter value file or the network variable
bindings are being saved into the flash memory.

Flashes alternately
with IN MSG LED

Flashes together with
IN MSG LED

A powerup error has occurred. For troubleshooting information,
refer to Chapter 5.

ORKS

LONW

wink function implemented. See “Wink Function” in

Chapter 5.

IN MSG Flashes briefly (Inbound Message) Flashes briefly (10ms) when an update

message for a bound network variable is received by the LBIM
from the L

ONWORKS

network.

Also lighted briefly during powerup sequence.

Lighted briefly Powerup sequence in process.

The network variable configuration is being saved into the flash
memory.

Flashes alternately
with OUT MSG LED

Flashes together with
OUT MSG LED

A powerup error has occurred. For troubleshooting information,
refer to Chapter 5.

ORKS

LONW

wink function implemented. See “Wink Function” in

Chapter 5.

SVC Not lighted Normal operation.

Flashing (Service) The LBIM is in a LONW

ORKS

unconfigured state. (The
LBIM network variables and PLC mapping are configured and it
is waiting for configuration from a network management tool.)

Lighted When SERVICE button is pressed.

1-6 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

Connectors

During normal operation, the only external connection to the LBIM is the network connection to
the two-pin removable header on the front panel. The RJ-45 connector is reserved for easy
connection of network management tools during configuration of the interface and binding of
network variables. The RS-422 serial port is used to update LBIM firmware and is not normally
needed by the user.

Table 1-4. LBIM Connectors

Connector Function Type

NETWORK Connection of network

management tools

NETWORK Provides LONW

field connection (NETA, NETB)
using 18-24 AWG (0.86mm

0.22mm

COM PORT RS-422 RS-422 serial port that supports

SNP communications (SNP and
SNPX). Used to update LBIM
firmware. (Does not support
Hand-Held Programmer.)

Series 90-30 backplane Connection to PLC backplane 24-pin connector

ORKS

network

2

) twisted pair wires.

2

to

RJ-45
NetA, NetB

2-pin removable screw terminal

DB-15, female

1

Table 1-5. Pin Assignments for RS-422 Port

Pin Signal Name Pin Signal Name

1 Shield 8 CTS (B)
2 No connection 9 RT
3 No connection 10 RD (A)
4 No connection 11 RD (B)
5 No connection 12 SD (A)
6 RTS (A) 13 SD (B)
7 OV 14 RTS (B)

15 CTS (A)

GFK-1322A Chapter 1 Overview 1-7

1

Functional Characteristics

Configuration

Most parameters are supported to the limits of the LONT

Protocol and the LONW

ALK

ORKS

node

limits.

Table 1-6. LBIM Functional Characteristics

Microprocessor

Maximum number of network
variables supported by LBIM

Standard Network Variable Types
(SNVTs)

PLC memory types supported

Neuron chip running the Microprocessor Interface Program
(MIP) with 80C186 host processor.

244 (240 of these can be configured by user)
The maximum number of network variables depends on the

size and type of the variables, limited by the LBIM’s PLC
register space (2 Kbytes each direction) and the configuration
memory budget.

Supports L

List

network variable must be no more than 31 bytes in length.
%I, %Q, %AI, %AQ

ONWORKS

published by Echelon corporation as of June 1996. Each

SNVTs as listed in

The SNVT Master

Configuration of the LBIM consists of defining network variable types and mapping them into the
PLC reference space using the IOPEN configuration software. Network Variable types mapped to
memory types %I or %Q must be of type SNVT_switch, SNVT_lev_disc, or other bit-represented
types. Once the LBIM’s network interface has been configured, network configuration and
binding can be performed as for any other

LONW

node. Also, after the LBIM’s network

ORKS

interface has been configured, the Series 90-30 backplane CPU must be set up to recognize the
LBIM as a foreign smart module with a reference map required to implement the network
interface. For details on configuration, refer to Chapter 4.

Diagnostics

The LBIM does not report faults to the PLC. Module errors cause the LBIM to reset. If an
acknowledge NV update command fails, it is up to the destination device to assume that a fault
has occurred. Configuration errors will cause the LBIM to not be mapped.

For troubleshooting and diagnostics information, refer to Chapter 5.

1-8 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

What You Need to Operate the Bus Interface Module

To configure and operate the LBIM, you need:

• A personal computer or laptop computer that runs Microsoft

• Series 90-30 backplane with CPU module

See Table 1-7 for models that can be used with the LBIM.

• Logicmaster 90 software

Required to configure and program the Series 90-30 PLC. See Table 1-7 for versions that can
be used with the LBIM.

®

Windows® software.

1

• L

ONWORKS

network binding tool
Many third-party network management software packages that include network binding tools
are available. (See Table 1-8 for suggestions.)

• IOPEN network interface configuration software: (for Microsoft Windows) This software is

provided on the utility disk supplied with the LBIM.

• A L

ONTALK

adapter and a device driver (See Table 1-9 for the adapter types that can be used
by each model of LBIM.)
This is required to run the network interface configuration software.

®

Windows is a registered trademark of Microsoft Corporation.

GFK-1322A Chapter 1 Overview 1-9

1

Table 1-7. Compatible CPU Models and Logicmaster 90 Software Versions

CPU Models

CPU Firmware Logicmaster 90 Software

IC693CPU___

release 5.0 or later (release 5.0 or later)

In each case,

311S

331T
313H
323H
340B
341K

351AA release 6.0 or later (release 6.0 or later)

351AB release 6.02 or later (release 6.0 or later)

models or versions can be used.

later

Table 1-8. Choosing a Network Binding Tool

Third-party network
management tools

Considerations

LONM

•

• ICELAN-G from Intelligent Energy Corporation

• MetraVision from Metra Corporation

• others

• How well it handles nodes that have a large number of network

variables

• Ability to handle Standard Configuration Parameter Types

(SCPT) and load these values using L

from Echelon

AKER

IC641SWP___

301R
306K
311A

311A

ONTALK

File Transfer

301S
306L

Table 1-9. Network Interface Configuration

LBIM Model L

ONTALK

and Configuration Utility

PE693BEM350
(free topology type)

PE693BEM351
PE693BEM352

(bus/loop topology types) PCLTA card

SLTA
NodeUtil utility

PCLTA card
NodeUtil utility

PCMIA card (PCC-10) none
SLTA

NodeUtil utility

NodeUtil utility

Adapter

Cables

RS-232

none

RS-232

none

1-10 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

Chapter

2

Operation

The following topics are presented in this chapter:



Overview of Operation................................................................................................2-2



Powerup Sequence......................................................................................................2-4



Sweep Operation ........................................................................................................2-6

GFK-1322A 2-1

2

Overview of Operation

Architecture

The LBIM communicates with other LONW
LBIM communicates with the PLC CPU over the PLC backplane.

Figure 2-1 provides an overview of the LBIM’s architecture. The LBIM has two processors: an
Intel 80186EC processor provides host functions and a 3150 Neuron processor that runs Echelon’s
Microprocessor Interface Program (MIP) handles the L
interface is provided by GE Series 90-30 API (application programming interface)
software.

When an input network variable is updated, the data associated with it is copied into the
corresponding PLC input buffer location. The Store Inputs routine is then called to update the
PLC memory during the next PLC scan.

The API (Application Programming Interface) buffers the information for transfer to the PLC
during a subsequent scan. When a scan is received from the PLC, the API initiates a callback, in
which the LBIM’s entire PLC output buffer is copied. Each network variable in the output buffer
is then checked to determine whether it differs from the current value of the output buffer. If the
values are different, the network variable is updated over the L
Send Time has been configured, the network variable will not be updated until the Min Send
Time has expired.

The Max Send Time configuration parameter can also drive updating of output network variables
if the value does not change. This assures that, even though data in the source is not changing,
any newly added users will receive a copy and that users also know that the source is still online.
This is how heartbeats are sent across the L

modules through bound network variables. The

ORKS

network. The Series 90-30

ONWORKS

network. If the Min

ONWORKS

ONWORKS

network.

A separate function determines which network variables need updating and forwards the data to
the microprocessor interface program (MIP) through the host interface.

2-2 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

LonW orks N et w ork (T P- 78, T P -1 25 0, or FT 10 )

Microprocessor Interface Program
with U plink Int erru pt

2

3150 Neuron

Host Interface Library

Output
Network
Variable
Updates

API Callbacks

Check Outputs

Input
Network
Variable
Updates

Network
Binding/S CPT
Storage

Network
Interfac e
Configuration

Engine

Series 90-30 PLC API

PLC Backplane

Figure 2-1. Overview of Bus Interface Module Operation

80186E C

SNP
Boot
Loader

Serial

Port

GFK-1322A Chapter 2 Operation 2-3

2

Operating Modes

The LBIM has four modes of operation:
Unconfigured This is how the LBIM is shipped from the factory. Four default network

variables are set up to allow the network interface to be configured over
the L

ONWORKS

L

ONMARK

SNVT_obj_request, SNVT_obj_status, SNVT_file_req, SNVT_file_status.
This mode is also entered if the network interface configuration
information is corrupted or if an invalid configuration is loaded to the
LBIM.

Unbound This mode exists after the LBIM’s network interface has been configured,

but before network variables are bound. The LBIM presents self
documentation information to the network (in response to queries) and can
be configured in the PLC backplane. Network variables are not updated
across the network.

Network. These network variables are part of the

node object that has the four network variables (index 0—3):

Normal Operation If one or more network variables are bound to other L

Software Download If the boot loader is used to update the software, the LBIM does not

Powerup Sequence

The self-test sequence performed by the LBIM during powerup is illustrated in Figure 2-2.
The default network interface configuration consists of the LonMark node object with four

network variables (index 0—3).

• SNVT_obj_request Object request

• SNVT_obj_status Object status

• SNVT_file_req File request

• SNVT_file_status File status

ONWORKS

data updated by the PLC will be sent across the network to the other node.
Input network variables for the module can also be updated (and the data
sent to the PLC) if the network variables are bound.

respond to the network or the PLC interface. The LBIM should be put off­line before downloading new code.

nodes,

2-4 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

Clear RAM

2

Checksum
on code space
correct?

Yes

Turn on
IN M SG and
OUT MSG LEDs

Initialize PL C
backplane
driver

Read s tored

network interface
configuration

Configuration
valid?

Yes

No

No

Boot loader

Set configuration
to default values

Initialize

LONW

ne tw ork in terfa ce

Initi aliz e d e fa ult d ata
values and timeouts

Configu re PLC
reference spac e
wh en re quested
by PLC

Turn off the IN MSG
and O UT MSG
LE D s

Main loop
proce s sing

ORKS

Figure 2-2. Bus Interface Module Powerup Sequence

GFK-1322A Chapter 2 Operation 2-5

2

Sweep Operation

The data flow for information that is sent from the LONW
separately from the flow of data from the PLC to the L

Input data: When an input network variable is updated, the data associated with the network
variable is copied into the proper location in a PLC input buffer. The Store Inputs routine is then
called to update the data in the PLC at the next scan time.

Output data: When the API callback notifies the LBIM that an output scan has arrived, the data
is copied into a holding buffer. This buffer is then scheduled to be checked against the current
value of each output network variable. If the data is different, the network variable is updated over
the L

ONWORKS

Send Time was configured). This prevents overloading the network with frequently changing
data.

If a network variable is configured to be a SNVT_lev_disc or a SNVT_switch and is mapped into
the %I or %Q reference area, the data is converted to a bit. This conversion occurs when the data
is moved to or from the PLC buffer.

The total sweep time depends on the amount of reference memory used by the LBIM. This is a
maximum of 1K words input and 1K words output, and is set when the LBIM’s Network Interface
is configured.

The I/O response times depend on the following factors:

• number and size of network variables for which the LBIM is configured

• rate at which network variables are updated

network if the Min Send Time for the network variable has expired (only if Min

ONWORKS

network to the PLC is handled

ORKS

network.

• number of network variables that are bound

• service type (ACKD, UNACKD) of each network variable

• network bandwidth

• network traffic

• whether network variables are input or output network variables

2-6 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A

Chapter

3

Hardware Installation

This chapter describes:



Rack Location for the Bus Interface Module ...............................................................3-2



Module Installation and Removal ...............................................................................3-3



Network Installation...................................................................................................3-4



Connecting a Programmer.......................................................................................... 3-5

GFK-1322A 3-1

3

Rack Location for the Bus Interface Module

The LBIM can be located in any rack in any slot (except for the slots in the main rack that are
reserved for the power supply and CPU) in a Series 90-30 PLC. For the most efficient system
operation, the main baseplate is preferred.

The following slots are reserved in the PLC main rack:

Models 331, 340, 341, 351, 352 and later: Slot 0 reserved for power supply

Models 311 and 313: Slot 0 reserved for power supply (The CPU is built into the

baseplate.)

To estimate whether the system you want to design is possible, complete steps 1–3, below.

1. The I/O configuration block uses a base of 90 bytes of user memory. Each smart module uses
257 bytes of user memory for parameter data. Finally, every I/O segment uses an additional
40 bytes of user memory.

Slot 1 reserved for CPU

Example of segments:
A discrete input module has one segment (%I).

2. The total user memory required by a configuration is the sum of all these parts:

base configuration size (90)
+ number of smart modules *257
+ number of segments *40
= total user memory required for the configuration

3. The total user memory available for configuration varies with CPU model. If the number
derived from the formula above is greater than the number next to the CPU that you are
using, the system will not work due to memory limitations.

CPU Available Memory

(bytes)

311 4,720
313 4,720
323 4,720

331 4,656
340/341 8,176
351/352 16,368

3-2 Series 90™-30 PLC LONWORKS® Bus Interface Module User's Manual – June 1997 GFK-1322A