Bailey Infi 90 IMEDI01 User manual



Process Control and
Automation Solutions
from Elsag Bailey Group
IMEDI01
Ethernet Device Interface

WARNING notices as used in this instruction apply to hazards or unsafe practices that could result in
personal injury or death.
CAUTION notices apply to hazards or unsafe practices that could result in property damage.
NOTES highlight procedures and contain information that assists the operator in understanding the
information contained in this instruction.
WARNING
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DAMAGE MAY RESULT.
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TION SHOULD BE EXERCISED WITH REGARD TO THE USE OF PORTABLE COMMUNICATIONS EQUIP-
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MUNICATIONS EQUIPMENT.
POSSIBLE PROCESS UPSETS
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EQUIPMENT CONTROLLED BY THIS PRODUCT. ADJUSTING OR REMOVING THIS PRODUCT WHILE IT IS
IN THE SYSTEM MAY UPSET THE PROCESS BEING CONTROLLED. SOME PROCESS UPSETS MAY
CAUSE INJURY OR DAMAGE.
NOTICE
The information contained in this document is subject to change without notice.
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manufacture of hardware or software described herein is prohibited. No part of this document may be
photocopied or reproduced without the prior written consent of Elsag Bailey.

WBPEEUI240759A0
Preface
The IMEDI01 Ethernet Device Interface module provides an
interface between third-party Ethernet programmable logic
controllers (PLC) and the INFI 90 OPEN Strategic Process Man-
agement System. This instruction provides information about
how to install and operate the module.

WBPEEUI240759A0
®
List of Effective Pages
Total number of pages in this instruction is 86, consisting of the following:
Page No. Change Date
Preface Original
List of Effective Pages Original
iii through viii Original
1-1 through 1-6 Original
2-1 through 2-3 Original
3-1 through 3-8 Original
4-1 through 4-12 Original
5-1 through 5-4 Original
6-1 through 6-6 Original
7-1 through 7-4 Original
8-1 through 8-2 Original
9-1 Original
A-1 through A-15 Original
B-1 through B-15 Original
Index-1 through Index-2 Original
When an update is received, insert the latest changed pages and dispose of the super-
seded pages.
NOTE: On an update page, the changed text or table is indicated by a vertical bar in the outer mar-
gin of the page adjacent to the changed area. A changed figure is indicated by a vertical bar in the
outer margin next to the figure caption. The date the update was prepared will appear beside the
page number.

Table of Contents
Page
WBPEEUI240759A0 iii
SECTION 1 - INTRODUCTION....................................................................................................1-1
OVERVIEW ..................................................................................................................1-1
INTENDED USER .........................................................................................................1-2
COMPATIBILITY ...........................................................................................................1-2
HARDWARE REQUIREMENTS .....................................................................................1-2
FEATURES...................................................................................................................1-2
INSTRUCTION CONTENT .............................................................................................1-3
HOW TO USE THIS INSTRUCTION ...............................................................................1-3
DOCUMENT CONVENTIONS ........................................................................................1-4
GLOSSARY OF TERMS AND ABBREVIATIONS .............................................................1-4
REFERENCE DOCUMENTS..........................................................................................1-5
NOMENCLATURE ........................................................................................................1-5
SPECIFICATIONS .........................................................................................................1-5
SECTION 2 - DESCRIPTION AND OPERATION........................................................................2-1
INTRODUCTION...........................................................................................................2-1
MODULE OPERATION..................................................................................................2-1
MODULE DESCRIPTION ..............................................................................................2-1
FUNCTION CODES ......................................................................................................2-3
SECTION 3 - INSTALLATION.....................................................................................................3-1
INTRODUCTION...........................................................................................................3-1
SPECIAL HANDLING ....................................................................................................3-1
UNPACKING AND INSPECTION ....................................................................................3-2
SWITCHES...................................................................................................................3-2
IP Address (S1, S2, S3, S4) .....................................................................................3-3
Hardware Options (S5) ...........................................................................................3-3
I/O Expander Bus Address (S6)..............................................................................3-4
JUMPERS (E1 TO E13) .................................................................................................3-5
MMU INSTALLATION....................................................................................................3-6
CABLE CONNECTIONS ................................................................................................3-6
FIRMWARE/PROTOCOL DOWNLOAD ..........................................................................3-7
SECTION 4 - FUNCTION CODE CONFIGURATION..................................................................4-1
INTRODUCTION...........................................................................................................4-1
FUNCTION CODES ......................................................................................................4-1
Factory Instrumentation Protocol Handler ..............................................................4-1
Digital Input Subscriber .........................................................................................4-1
Analog Input Subscriber ........................................................................................4-1
Analog Output Subscriber......................................................................................4-2
Digital Output Subscriber ......................................................................................4-2
PLC Support ..........................................................................................................4-2
Configuration.........................................................................................................4-2
PLC Performance ...................................................................................................4-2
EDI Performance....................................................................................................4-3
Data Output Options .............................................................................................4-4
CALCULATING IP ADDRESS SPECIFICATIONS ............................................................4-5
LINKING SUBSCRIBERS ..............................................................................................4-6
GROUPING SUBSCRIBERS ..........................................................................................4-6
EXAMPLE CONFIGURATION ........................................................................................4-6

iv WBPEEUI240759A0
Table of Contents (continued)
Page
®
SECTION 5 - OPERATING PROCEDURES................................................................................5-1
INTRODUCTION .......................................................................................................... 5-1
FRONT PANEL ............................................................................................................. 5-1
Module State ......................................................................................................... 5-1
Status LEDs .......................................................................................................... 5-2
START-UP SEQUENCE ................................................................................................ 5-2
NORMAL OPERATING CONDITIONS ............................................................................ 5-3
STOP/RESET .............................................................................................................. 5-3
SECTION 6 - TROUBLESHOOTING...........................................................................................6-1
INTRODUCTION .......................................................................................................... 6-1
SELF DIAGNOSTICS .................................................................................................... 6-1
MODULE STATE.......................................................................................................... 6-1
STATUS CODES .......................................................................................................... 6-2
IMEDI01 UTILITIES ..................................................................................................... 6-4
CONNECTOR PIN ASSIGNMENTS ................................................................................ 6-5
SECTION 7 - MAINTENANCE.....................................................................................................7-1
INTRODUCTION .......................................................................................................... 7-1
PREVENTIVE MAINTENANCE SCHEDULE ................................................................... 7-1
EQUIPMENT AND TOOLS REQUIRED.......................................................................... 7-2
PREVENTIVE MAINTENANCE PROCEDURES .............................................................. 7-2
Checking Connections ........................................................................................... 7-2
Printed Circuit Board Cleaning .............................................................................. 7-3
General Cleaning and Washing ........................................................................ 7-3
Edge Connector Cleaning ................................................................................ 7-3
SECTION 8 - REPAIR AND REPLACEMENT PROCEDURES ..................................................8-1
INTRODUCTION .......................................................................................................... 8-1
MODULE REPAIR ........................................................................................................ 8-1
MODULE REPLACEMENT............................................................................................ 8-1
SECTION 9 - SUPPORT SERVICES...........................................................................................9-1
INTRODUCTION .......................................................................................................... 9-1
REPLACEMENT PARTS AND ORDERING INFORMATION.............................................. 9-1
TRAINING .................................................................................................................... 9-1
TECHNICAL DOCUMENTATION ................................................................................... 9-1
APPENDIX A - ALLEN BRADLEY PLC.....................................................................................A-1
INTRODUCTION .......................................................................................................... A-1
PROTOCOL IDENTIFICATION ...................................................................................... A-1
FACTORY INSTRUMENTATION PROTOCOL HANDLER (FC 184) ...................................A-2
Specifications Explanation..................................................................................... A-2
DIGITAL INPUT SUBSCRIBER (FC 185) ........................................................................ A-4
Specifications Explanation..................................................................................... A-5
ANALOG INPUT SUBSCRIBER (FC 186) .......................................................................A-7
Specifications Explanation..................................................................................... A-8
ANALOG OUTPUT SUBSCRIBER (FC 187) .................................................................. A-10
Specifications Explanation................................................................................... A-11
DIGITAL OUTPUT SUBSCRIBER (FC 188) .................................................................. A-13
Specifications Explanation................................................................................... A-14

WBPEEUI240759A0 v
Table of Contents (continued)
Page
APPENDIX B - TRICONEX SYSTEMS PLC...............................................................................B-1
INTRODUCTION.......................................................................................................... B-1
PROTOCOL IDENTIFICATION ...................................................................................... B-1
FACTORY INSTRUMENTATION PROTOCOL HANDLER (FC 184) .................................. B-2
Specifications Explanation .................................................................................... B-2
DIGITAL INPUT SUBSCRIBER (FC 185) ....................................................................... B-4
Specifications Explanation .................................................................................... B-5
ANALOG INPUT SUBSCRIBER (FC 186) ....................................................................... B-7
Specifications Explanation .................................................................................... B-8
ANALOG OUTPUT SUBSCRIBER (FC 187) ................................................................. B-10
Specifications Explanation .................................................................................. B-11
DIGITAL OUTPUT SUBSCRIBER (FC 188).................................................................. B-13
Specifications Explanation .................................................................................. B-14
List of Figures
No. Title Page
1-1. IMEDI01 Ethernet Device Interface Application ......................................................1-1
2-1. Block Diagram .......................................................................................................2-2
3-1. Module Layout .......................................................................................................3-3
3-2. Address Switch (S6) ...............................................................................................3-4
3-3. IMEDI01 Module to 10Base2 Thinwire Connection .................................................3-7
3-4. IMEDI01 Module to 10Base5 Thickwire Connection ................................................3-7
4-1. Function Code Linking ...........................................................................................4-7
4-2. Function Code 184.................................................................................................4-8
4-3. Function Code 186 – Analog Inputs ........................................................................4-9
4-4. Function Code 187 – Analog Outputs ...................................................................4-10
4-5. Function Code 185 – Digital Inputs ......................................................................4-11
4-6. Function Code 188 – Digital Outputs....................................................................4-12
5-1. Front Panel ............................................................................................................5-1
6-1. IMEDI01 Utilities ...................................................................................................6-5
List of Tables
No. Title Page
1-1. Glossary of Terms and Abbreviations......................................................................1-4
1-2. Reference Documents ............................................................................................1-5
1-3. Related Nomenclatures ..........................................................................................1-5
1-4. Specifications.........................................................................................................1-5
3-1. Example IP Address Switch Settings .......................................................................3-3
3-2. Hardware Options (S5) ...........................................................................................3-4
3-3. Normal and Download Modes (S5) ..........................................................................3-4
3-4. Example I/O Expander Bus Address Switch Settings (S6) .......................................3-5

List of Tables (continued)
No. Title Page
vi WBPEEUI240759A0vi WBPEEUI240759A0
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3-5. Jumper Settings (E1 to E13) .................................................................................. 3-5
5-1. Module State LED Indications................................................................................ 5-1
5-2. Start-Up Sequence ................................................................................................ 5-2
5-3. Operations Summary............................................................................................. 5-3
6-1. Module State LED Indications and Correction Actions ............................................ 6-1
6-2. Status Codes ......................................................................................................... 6-2
6-3. P1 Edge Connector ................................................................................................ 6-5
6-4. P2 Edge Connector ................................................................................................ 6-5
6-5. P3 Edge Connector ................................................................................................ 6-6
6-6. P5 Connector (DTE) ............................................................................................... 6-6
7-1. Preventive Maintenance Schedule .......................................................................... 7-1
A-1. FC 184 Output ...................................................................................................... A-2
A-2. FC 184 Specifications ............................................................................................ A-2
A-3. FC 185 Outputs..................................................................................................... A-4
A-4. FC 185 Specifications ............................................................................................ A-4
A-5. Digital Input Group ............................................................................................... A-5
A-6. FC 186 Outputs..................................................................................................... A-7
A-7. FC 186 Specifications ............................................................................................ A-7
A-8. Analog Input Group ............................................................................................... A-8
A-9. FC 187 Output .................................................................................................... A-10
A-10. FC 187 Specifications .......................................................................................... A-10
A-11. Analog Output Group .......................................................................................... A-11
A-12. FC 188 Output .................................................................................................... A-13
A-13. FC 188 Specifications .......................................................................................... A-13
A-14. Digital Output Group........................................................................................... A-14
B-1. FC 184 Output ......................................................................................................B-2
B-2. FC 184 Specifications ............................................................................................B-2
B-3. FC 185 Outputs.....................................................................................................B-4
B-4. FC 185 Specifications ............................................................................................B-4
B-5. Digital Input Group ...............................................................................................B-5
B-6. FC 186 Outputs.....................................................................................................B-7
B-7. FC 186 Specifications ............................................................................................B-7
B-8. Analog Input Group ...............................................................................................B-8
B-9. FC 187 Output ....................................................................................................B-10
B-10. FC 187 Specifications ..........................................................................................B-10
B-11. Analog Output Group ..........................................................................................B-11
B-12. FC 188 Output ....................................................................................................B-13
B-13. FC 188 Specifications ..........................................................................................B-13
B-14. Digital Output Group...........................................................................................B-14

WBPEEUI240759A0 vii
Safety Summary
GENERAL
WARNINGS Equipment Environment All components, whether in transportation, operation or storage,
must be in a noncorrosive environment.
Electrical Shock Hazard During Maintenance
Disconnect power or take precautions to insure that contact with
energized parts is avoided when servicing.
SPECIFIC
WARNINGS Disconnect power before installing dipshunts on the module mount- ing unit backplane. Failure to do so will result in contact with cabinet
areas that could cause severe or fatal shock. (p. 3-6)
There are exposed AC and DC connections inside the cabinet.
These exposed electrical connections present a shock hazard that
can cause injury or death.
If input or output circuits are a shock hazard after disconnecting sys-
tem power at the power entry panel, then the door of the cabinet
containing these externally powered circuits must be marked with a
warning stating that multiple power sources exist. (p. 7-2)
Never clean electrical parts of components with live power present.
Doing so exposes you to an electrical shock hazard.
Wear eye protection whenever working with cleaning solvents.
When removing solvents from printed circuit boards using com-
pressed air, injury to the eyes could result from splashing solvent as
it is removed from the printed circuit board. (p. 7-3)

viii WBPEEUI240759A0
®
Trademarks and Registrations
Registrations and trademarks used in this document include:
® INFI 90 Registered trademark of Elsag Bailey Process Automation
® Microsoft Registered trademark of Microsoft Corporation.
® Windows Registered trademark of Microsoft Corporation.
® Windows NT Registered trademark of Microsoft Corporation.

OVERVIEW
WBPEEUI240759A0 1 - 1
SECTION 1 - INTRODUCTION
OVERVIEW
The IMEDI01 Ethernet Device Interface module provides an
interface between third-party Ethernet programmable logic
controllers (PLC) and the INFI 90 OPEN Strategic Process Man-
agement System. Figure 1-1 shows an EDI module application.
The EDI module communicates with the PLCs over a dedicated
Ethernet LAN.
The EDI module can cable connect directly to a 10Base2 local
network without requiring any additional hardware or can con-
nect to a 10Base5 local network using an IKEDI01 cable and
an external third-party transceiver (i.e., MAU). The module uti-
lizes TCP/IP as the communications protocol.
On the INFI 90 OPEN system side, the EDI module communi-
cates with a multifunction processor module (IMMFP01,
IMMFP02, or IMMFP03) over the I/O expander bus. The MFP
module performs the actual process control and monitoring.
The EDI module acts as a generic node on the Ethernet LAN.
NOTE: The MFP module can operate on either Controlway or mod-
ule bus.
Figure 1-1. IMEDI01 Ethernet Device
Interface Application
T01285A
INFI-NET OR PLANT LOOP
CONTROLWAY
I/O EXPANDER BUS
ETHERNET
PLCs
NIS
MFP
EDI
NPM PROCESS CONTROL
UNIT INTERFACE
CONTROL
MODULE
ETHERNET
INTERFACE

INTRODUCTION
INTENDED USER
1 - 2 WBPEEUI240759A0
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INTENDED USER
This instruction is intended for personnel responsible for
installing, operating, and maintaining the EDI module. Instal-
lation requires an engineer or technician with experience han-
dling electronic circuitry, and is familiar with the INFI 90 OPEN
system and Ethernet networks.
COMPATIBILITY
The IMEDI01 module is compatible with and can be used to
interface the following third-party Ethernet PLCs:
•Allen Bradley PLC-5E and higher.
•Triconex Systems Tricon V6 PLC and higher (with Network
Communications Module).
HARDWARE REQUIREMENTS
An IMMFP01, IMMFP02, or IMMFP03 Multi-Function Proces-
sor module with firmware revision G.0 or later is required to
operate the IMEDI01 module.
Additionally, the IMEDI01 module must contain the proper
interface protocol for the third-party Ethernet PLC being inter-
faced. Check the protocol label on the IMEDI01 module to ver-
ify the protocol installed. Refer to the appendices for protocol
identification information.
FEATURES
•Downloadable firmware residing in FLASH memory.
•Ethernet connection using TCP/IP communication.
•Serial engineering and diagnostic port.
•High performance 32-bit microprocessor running at 25
megahertz.
•Standard INFI 90 OPEN packaging and power system.
•Interfaced to process control unit via I/O expander bus.
•Configuration via standard INFI 90 OPEN function codes.
•High capacity local data table (over 1,000 points).
•High data exchange rate (ten megabaud).

INTRODUCTION
INSTRUCTION CONTENT
WBPEEUI240759A0 1 - 3
INSTRUCTION CONTENT
This instruction consists of the following sections and appendi-
ces.
Introduction Overviews the EDI module. It contains features, a description,
reference documents, and specifications.
Description and
Operation Explains the theory of module operation.
Installation Covers handling precautions, switch and jumper settings, and
EDI module installation and connection.
Operating Procedures Explains how to start up and operate the EDI module.
Troubleshooting Describes how to check for EDI errors and the corrective
actions to take.
Maintenance Contains a maintenance schedule for the EDI module.
Repair and Replacement
Procedures Explains how to replace an EDI module.
Support Services Provides information about ordering parts from your local
Elsag Bailey sales office. It also explains other areas of support
that Elsag Bailey provides.
Appendix A Provides IMEDI01 module information necessary to interface
to an Allen Bradley controller (PLC-5E and higher).
Appendix B Provides IMEDI01 module information necessary to interface
to a Triconex Systems PLC.
HOW TO USE THIS INSTRUCTION
Read this instruction before placing the EDI module in opera-
tion. Refer to the sections in this list as needed for more
information.
1. Perform the steps in Section 3 to install the EDI module.
2. Read Section 4 for function code configuration information.
3. Read Section 5 before placing the EDI module into opera-
tion.
4. Refer to Section 6 if a problem occurs.
5. Refer to Section 7 for general guidelines for EDI module
maintenance.
6. Refer to Section 9 for procedures to replace a module.

INTRODUCTION
DOCUMENT CONVENTIONS
1 - 4 WBPEEUI240759A0
®
7. Use Section 9 for parts ordering information. This section
also tells of additional services that Elsag Bailey offers.
DOCUMENT CONVENTIONS
This document uses standard text conventions to represent
keys and user data inputs:
Key Identifies a keyboard key.
Example:
Press .
File name Bold-italic - Identifies a file name and file extension.
User data input Bold - Identifies any part of a command line that is not
optional or variable and must be entered exactly as shown.
Italic - Identifies a variable parameter entered in a command
line.
Example:
drive
:\DWNL_EDI
filename x
?Identifies any part number positions that are variable posi-
tions.
Example:
1948385?1
GLOSSARY OF TERMS AND ABBREVIATIONS
Table 1-1 contains those terms and abbreviations that are
unique to Elsag Bailey or have a definition that is different
from standard industry usage.
(17(5
Table 1-1. Glossary of Terms and Abbreviations
Term Definition
Control module Directs field processes through an I/O module; the multifunction processor is an
example.
Function code An algorithm which manipulates specific functions. These functions are linked
together to form the control strategy.
I/O expander bus Parallel communication bus between the control and I/O modules.
MFP Multifunction processor module. A multiple loop controller with data acquisition and
information processing capabilities.
MMU Module mounting unit. A card cage that provides electrical and communication
support for INFI 90 OPEN modules.

INTRODUCTION
REFERENCE DOCUMENTS
WBPEEUI240759A0 1 - 5
REFERENCE DOCUMENTS
Table 1-2 lists Elsag Bailey instructions referenced in this
instruction.
NOMENCLATURE
The complete nomenclature for the Ethernet device interface
module is IMEDI01. This nomenclature is used throughout
this instruction to refer to the module and is used for ordering
purposes. Table 1-3 lists additional hardware nomenclature
related to the EDI module.
SPECIFICATIONS
Table 1-4 contains the specifications for the IMEDI01 module.
TM Termination module; provides input/output connection between plant equipment and
the INFI 90 OPEN modules.
TU Termination unit; provides input/output connection between plant equipment and the
INFI 90 OPEN modules.
Table 1-1. Glossary of Terms and Abbreviations (continued)
Term Definition
Table 1-2. Reference Documents
Number Title
I-E96-200 Function Code Application Manual
I-E96-201 IMMFP01 Multi-Function Processor
I-E96-202 IMMFP02 Multi-Function Processor
I-E96-203 IMMFP03/03B Multi-Function Processor
WBPEEUI310013B0 Module Configuration Tools (WCAD)
WBPEEUI200501A0 Module Mounting Unit (IEMMU11/12/21/22)
Table 1-3. Related Nomenclatures
Nomenclature Description
IKEDI01 Cable, IMEDI01 to MAU
Table 1-4. Specifications
Property Characteristic/Value
Processor 32-bit microprocessor running at 25 Mhz
Memory
DRAM 4Mb
FLASH RAM 512kb

INTRODUCTION
SPECIFICATIONS
1 - 6 WBPEEUI240759A0
®
Power requirements
Operating power 5 VDC, ±5% at 1.8 A typical
+15 VDC, ±5% at 250 mA maximum
Power dissipation 10 W
Common mode isolation 500 Vrms at 45 to 65Hz/1 min
Insulation resistance (100 VDC) 1.2M Ω
Environmental
Ambient temperature 0° to 70°C (0° to 158°F) (noncondensing)
Relative humidity 10% to 90% up to 55°C (131°F)
10% to 45% from 56°C to 70°C (132°F to158°F) (noncondensing)
Atmospheric pressure Sea level to 2.4 km (1.49 mi)
Air quality Noncorrosive
Mounting Occupies a single slot in a standard INFI 90 OPEN module mounting
unit (MMU)
Certification
(pending) CSA certified for use as process control equipment in an ordinary (nonhazardous) location.
Overvoltage (installation) category II
CE mark declaration The product, when installed in an INFI 90 OPEN cabinet, complies with
the following directives/standards requested for CE marking:
EMC directive 89/336/EEC:
EN 50081-2 Generic emission standard - Part 2: Industrial environment
EN 50082-2 Generic immunity standard - Part 2: Industrial environment
Low voltage directive 73/23/EEC:
EN61010-1 Safety requirements for electrical equipment for measure-
ment, control, and laboratory use - Part 1: General requirement
SPECIFICATIONS SUBJECT TO CHANGE WITHOUT NOTICE
Table 1-4. Specifications (continued)
Property Characteristic/Value

INTRODUCTION
WBPEEUI240759A0 2 - 1
SECTION 2 - DESCRIPTION AND OPERATION
INTRODUCTION
This section provides theory of operation for the IMEDI01 mod-
ule. It discusses module operation, gives a module block dia-
gram description, and lists the function codes used to
configure the EDI module.
MODULE OPERATION
The EDI module acts as a gateway between the INFI 90 OPEN
system and third-party Ethernet PLCs. It provides the interface
necessary to communicate and share data.
The EDI module communicates with a multifunction processor
(MFP) module over the I/O expander bus (Fig. 1-1). Function
codes configured in the MFP module enable the EDI and MFP
modules to communicate and exchange data over the bus.
The EDI module connects to Ethernet LAN to communicate
with third-party PLCs (Fig. 1-1). The EDI module must contain
the appropriate interface protocol for the specific PLC family
being interfaced to enable this communication.
The EDI module can connect directly to a 10Base2 thinwire
network through its front panel BNC connector (P8). It can also
connect to a 10Base5 thickwire network utilizing an external
medium attachment unit (MAU) and IKEDI01 cable.
MODULE DESCRIPTION
The EDI module is a standard Elsag Bailey module that occu-
pies one slot in a module mounting unit. Inserting the module
into the MMU connects it to the I/O expander bus (X-bus) for
communication with the MFP module, and connects it to oper-
ating power (+5 VDC and +15 VDC).
Figure 2-1 is a block diagram of the EDI module circuitry.
CPU The central processing unit of the EDI module is an integrated
communications controller (ICC) that contains a 32-bit micro-
processor running at 25 megahertz. The ICC has a built-in
clock, Ethernet coprocessor, and serial channels.
Memory The EDI module utilizes two types of memory:
•512 kilobytes of FLASH RAM which contains the boot and
application programs. Utilizing FLASH memory provides
the ability to download firmware to either update or change

DESCRIPTION AND OPERATION
MODULE DESCRIPTION
2 - 2 WBPEEUI240759A0
®
the operation of the module without having to physically
replace discrete components.
•Four megabytes DRAM for microprocessor use. The mem-
ory is a 72-pin SIMM DRAM module mounted on the circuit
board.
Ethernet Interface (P8) The Ethernet interface consists of onboard isolation transform-
ers, a transceiver, and a DC/DC converter which allows for
direct 10Base2 thinwire connection. The EDI module connects
to Ethernet LAN through the BNC connector (P8) located on the
front panel.
Ethernet (P3) The EDI module has a built-in Ethernet coprocessor. The mod-
ule can connect to 10Base5 thickwire network by connecting
an IKEDI01 cable from the P3 connector to an external MAU
with a 15-pin, D-type connector.
X-Bus Interface The I/O expander bus interface circuitry consists mainly of a
custom integrated circuit found on all INFI 90 OPEN I/O mod-
ules. All the control logic and communication protocol are built
into the integrated circuit. This circuit provides the following
functions:
•Address comparison and detection.
•Function code latching and decoding.
•Read strobe generation.
•Data line filtering of bus signals.
•On-board bus drivers.
It manages the requests for data coming from the MFP module
and the data exchange between the EDI module and MFP mod-
Figure 2-1. Block Diagram
T01290A
LED
DRIVERS X-BUS INTERFACE I/O EXPANDER
BUS (P2)
CONTROL
LOGIC
DATA BUS
SWITCHES
(S1 TO S6) ETHERNET INTERFACE ETHERNET
BNC (P8)
MODULE
POWER +5 VDC,
+15 VDC (P1)
RS-232-C PORT (P5)
ETHERNET (P3)
MEMORY
CPU
MFT
STOP/
RESET

DESCRIPTION AND OPERATION
FUNCTION CODES
WBPEEUI240759A0 2 - 3
ule. The interface operates independent of the microprocessor.
The microprocessor and I/O expander bus interface access
shared memory to transfer data.
Additionally, the EDI module incorporates a custom gate array
to perform the I/O expander bus interface function.
RS-232-C Interface The EDI module uses a universal asynchronous receiver/
transmitter (UART) that is integrated into the ICC circuitry for
RS-232-C interface. The RS-232-C port is a nine-pin, D-type
connector (P5) located on the front panel and is mainly used for
firmware/protocol downloading.
Dipswitches The EDI module contains six dipswitches for setting:
•IP address (S1 through S4).
•Hardware options (S5).
•I/O expander bus address (S6).
LED Drivers Front panel LEDs show:
•Module state as either normal operation, halted, or off.
•Normal and error codes.
MFT The machine fault timer (MFT) is a security feature built into
the EDI module and most microprocessor based devices. The
timer is a one-shot timer that must be periodically reset by the
CPU to prevent it from timing out. If an error condition exists
that causes the EDI module to fail or operate incorrectly, the
timer will not be reset and will cause a time out condition. A
time out condition triggers a reset signal to halt the module
(i.e., module state LED lit red).
Stop/Reset The stop/reset switch provides the ability to both halt the EDI
module and to restart the module after it halts.
FUNCTION CODES
The EDI module is configured using a set of five function
codes:
•Factory Instrumentation Protocol Handler (FC 184).
•Digital Input Subscriber (FC 185).
•Analog Input Subscriber (FC 186).
•Analog Output Subscriber (FC 187).
•Digital Output Subscriber (FC 188).
These function codes reside in the MFP module as part of its
control configuration. Refer to Section 4 for function code con-
figuration information.

INTRODUCTION
WBPEEUI240759A0 3 - 1
SECTION 3 - INSTALLATION
INTRODUCTION
This section explains how to install the IMEDI01 module. Do
not proceed with operation until reading, understanding, and
performing the steps in the order in which they appear.
EDI module installation requires:
1. Setting switches.
2. Setting jumpers.
3. Module mounting unit (MMU) installation which requires
configuring the MMU and inserting the EDI module.
4. Connecting the EDI module to the Ethernet LAN.
After installing the EDI module, function codes must be config-
ured in the multifunction processor (MFP) module. Refer to
Section 4 for function code configuration information.
This section also includes a firmware/protocol software down-
load procedure used when upgrading or changing the opera-
tion of the EDI module. The firmware is stored in FLASH
memory.
SPECIAL HANDLING
Use the static grounding wrist strap when installing and remov-
ing modules. Static discharge may damage static sensitive
devices on modules in the cabinet. Use grounded equipment
and static safe practices when working with static sensitive
devices. Observe these steps when handling electronic cir-
cuitry:
NOTE: Always use Elsag Bailey’s field static kit (part number
1948385?1 - consisting of two wrist straps, ground cord assembly,
alligator clip, and static dissipating work surface) when working with
static sensitive devices. The kit is designed to connect the techni-
cian and the static dissipating work surface to the same ground point
to prevent damage to the static sensitive devices by electrostatic dis-
charge.
1. Use Static Shielding Bag. Keep the module in the static
shielding bag until you are ready to install it in the system.
Save the bag for future use.