Allen-Bradley 1784-KT/B Installation and user guide

Communication Interface Module

Installation Data

Cat. No. 1784-KT/B

The 1784-KT/B Communication Interface Module allows personal

computers, workstations or terminals to communicate with Allen-Bradley

processors and controllers, either through direct connections or over Data

Highway Plus networks. For information about using the 1784-KT/B with

a specific device, see the device’s user documentation.

ATTENTION: The following provides information for

Allen-Bradley Industrial Computer and Communication Group

(ICCG) products that have been verified to meet the

Electromagnetic Interference (EMI) requirements of the Federal

Communication Commission (FCC) and the Canadian

Department of Communications for use in a commercial

environment:

This device complies with Part 15 of the FCC rules. Operation

is subject to the following two conditions: (1) this device may

not cause harmful interference, and (2) this device must accept

any interference received, including interference that may cause

undesired operation.

ATTENTION: This digital apparatus does not exceed the

Class A limits for radio noise emissions from digital apparatus

set out in the Radio Interference Regulations of the Canadian

Department of Communications.

Le présent appareil numérique n’émet pas de bruits

radioélectriques dépassant les limites applicables aux appareils

numériques de la class A prescrites dans le Règlement sur le

brouillage radioélectrique édicté par le ministère des

Communications du Canada.

Introducing

the 1784KT/B

Communication Interface

Module

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

We will refer to the 1784-KT/B Communication Interface Module as

simply the 1784-KT throughout this document.

This document contains the following sections:

Introducing the 1784-KT Communication Interface Module

Important User Information

Features of the 1784-KT

Compatibility

How the 1784-KT Operates

Handling the 1784-KT Module

1784-KT Configuration Information

Installing the 1784-KT into a Computer

Connecting Your 1784-KT

Ordering Information

The Loopback Test Plug

System Memory and Interrupts

Specifications

Because of the variety of uses for products described in this publication,

those responsible for the application and use of this control equipment

must satisfy themselves that all necessary steps have been taken to assure

that each application and use meets all performance and safety

requirements, including any applicable laws, regulations, codes and

standards.

The illustrations, charts, sample programs and layout examples shown in

this guide are intended solely for purposes of example. Since there are

many variables and requirements associated with any particular

installation, Allen-Bradley does not assume responsibility or liability (to

include intellectual property liability) for actual use based upon the

examples shown in this publication.

Allen-Bradley publication SGI-1.1, “Safety Guidelines for the Application,

Installation and Maintenance of Solid State Control” (available from your

local Allen-Bradley office) describes some important differences between

solid-state equipment and electromechanical devices which should be

taken into consideration when applying products such as those described in

this publication.

Reproduction of the contents of this copyrighted publication, in whole or

in part, without written permission of Allen-Bradley Company, Inc. is

prohibited.

What This Document

Contains

Important User Information

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

ATTENTION: With any complex communication system you

need to identify potential application-related communication

problems and make provisions in the system design to prevent

hazardous or undesired consequences if a problem occurs.

These problems include, but are not necessarily limited to, the

possibility of:

unexpected loss of communication

erroneous or incomplete data being supplied to the network

and passed on to your application

Your 1784-KT Communication Interface Module is an ISA half-size 8-bit

card that can be inserted into any 8- or 16-bit ISA expansion slot. The

1784-KT provides the following features:

Makes your personal computer an active node on Data Highway Plus

networks

Increases application response time by removing the RS-232 bottleneck

Provides single cable connection to a PLC-2, PLC- 3, or PLC-5

family programmable controller

Is address selectable; may be used with other option boards installed in

your personal computer

When combined with 6001-F1E software or INTERCHANGE

software, allows you to create your own custom interface to Data

Highway Plus networks

Supported by the following software:

- 6001-FIE software

- 6200 software

- INTERCHANGEsoftware

- Advisor PC(series E or later)

- ControlViewsoftware

Features

of the 1784KT

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

Operation of the 1784-KT has been verified with the following:

Company: Model:

AllenBradley •1771 Information Processor

(1771DSX2) (requires KT Expander

Module 1771DXKT)

•1784T35 Industrial Terminal

•1784T50 Industrial Terminal

•AllenBradley 6121

•AllenBradley 6122

•T53 Industrial Programming Terminal

6160T53

•T60 Industrial Workstation

6160PCD2, PCN2, PCD4, PCN4

•T70 Industrial Workstation

6170 series

IBM•IBM PCXT/AT

Compaq•Compaq Portable286

•Compaq Portable II

•Compaq Portable III

•Compaq Deskpro286

•Compaq Deskpro 386

Dell•Dell 316 386SX

Samsung •Samsung S550

•Samsung 386

HewlettPackard•HP 9000/700 series

The 1784-KT allows you to:

directly connect to:

- PLC-2 processors

- PLC-3 processors

communicate with nodes on Data Highway Plus networks (including

PLC-5 and PLC-5/250 processors)

communicate with SLCprocessors (requires 1785-KA5 bridge)

The 1784-KT performs data transmission, management, and local Data

Highway Plus diagnostics. The interface to the host processor is through a

board-resident dual-port memory that passes preformatted Data Highway

Plus packets.

When the host powers up and downloads module code, it runs diagnostics

to verify the 1784-KT module’s operation. Allen-Bradley interface

software (including 6001-F1E, 6200, Interchange, Advisor PC, and

ControlView) manages data transmission and reception through the

board-resident dual-port memory.

Compatibility

How

the 1784KT Operates

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

The 1784-KT utilizes CMOS technology, which is highly sensitive to

Electro Static Discharge (ESD). ESD may be present whenever you are

handling the 1784-KT. Handling the 1784-KT without any ESD protection

can cause internal circuit damage that may not be apparent during

installation or initial use. A grounding wrist strap has been shipped with

the 1784-KT to be worn during the installation procedure. Instructions for

use of the strap are found on the back of its package.

ATTENTION: The following is a list of precautions to guard

against ESD damage:

1. Before handling the module, be sure to wear the provided

static strap and touch a grounded object to discharge any

built-up static charge.

2. When selecting your memory and interrupt options, avoid

touching other components on the 1784-KT.

3. Avoid touching the back plane connector or interface

connector pins located on the 1784-KT.

4. If the module is not in use, store the 1784-KT in the static

bag that the module was shipped in.

Important: Do not change the (factory set) configuration settings until

you have read this section.

The 1784-KT comes with preset memory location (D400) and no interrupt.

This may not be appropriate for your application. See the section

“Installing the 1784-KT into a Computer”, which begins on page 6, for

information on memory locations and interrupt settings.

ATTENTION: When selecting configuration settings, check

for conflicts with other interface cards and system memory. If

there is a conflict, the system will not operate properly.

Handling

the 1784KT Module

1784KT Configuration

Information

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

The following steps outline how to install the 1784-KT into a terminal,

workstation or computer. Refer to the terminal’s, workstation’s or

computer’s hardware user manual for further assistance.

1. Turn off the computer and disconnect the ac power cord.

2. Remove all covers necessary to gain access to the computer’s

expansion slot area. The industrial terminals may have retainer

brackets. Consult the user manual for access procedures.

ATTENTION: If you are not wearing the grounding wrist

strap, put it on at this time.

3. Remove the expansion slot bracket that covers the computer I/O

opening.

4. Remove the 1784-KT from the static bag.

5. Verify the configuration settings for your system. Use the worksheets

that begin on page 15 for assistance.

Important: If another card is already using your desired switch settings,

you will have to change the card’s switch settings to an open memory

location.

If you are using the default settings, go to step 10.

If you are not using the default settings, go to step 6.

6. Select a memory location. Table A shows the recommended memory

locations for Allen-Bradley terminals, workstations and computers.

Table B shows all the available memory locations and switch settings

for the card.

Table A

Recommended

memory settings

Equipment: Preferred Memory Location:

1784T35 C800

1784T50 C000

T53 Industrial

Programming Terminal

D400

T60 Industrial

Workstations

D000, D400, or D800

T70 Industrial

Workstations

D400

Installing

the 1784KT

into a Computer

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

Table B

Selecting

a memory location

Memory

Address (Hex)

PCB Board Switch Settings Switch

Settings2

A14

(switch 1)

A15

(switch 2)

A16

(switch 3)

A17

(switch 4)

A18

(switch 5)

A19

(switch 6)

A000:0000 up up up down up down 000101

A400:0000 down up up down up down 100101

A800:0000 up down up down up down 010101

AC00:0000 down down up down up down 110101

B000:0000 up up down down up down 001101

B400:0000 down up down down up down 101101

B800:0000 up down down down up down 011101

C000:0000 up up up up down down 000011

C400:0000 down up up up down down 100011

C800:0000 up down up up down down 010011

CC00:0000 down down up up down down 110011

D000:0000 up up down up down down 001011

1D400:0000 down up down up down down 101011

D800:0000 up down down up down down 011011

1This is the factoryset address and is the recommended setting. Some system peripherals (such as VGA cards)

may require a different address. Check your system peripheral's documentation to see if it requires different

settings.

2This is the 6200 software online configuration setting for the 1784KT.

up = 0

down = 1

7. Select an interrupt setting. Your choices are:

- IRQ3

- IRQ4

- IRQ5

- IRQ7

- no interrupt

Table C shows the recommended interrupt settings for Allen-Bradley

industrial terminals, workstations and computers that use

the 1784-KT.

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

Table C

Recommended

interrupt settings

Equipment: Preferred Interrupt:

1784T35 IRQ5

1784T50 IRQ5

T53 Industrial

Programming Terminal

no interrupt

T60 Industrial

Workstations

T70 Industrial

Workstations

8. Set the memory location address, by pushing the switches in at either

the top or bottom, to reflect the selected address of the memory

location.

Interrupt Jumper

(shown in no interrupt"

position)

Address Switch

(shown at D400:0000 setting)

Up = 0

switch pressed

in at top

Down = 1

switch pressed

in at bottom

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

9. Set the interrupt by placing the provided jumper in the proper

location.

Remove the jumper and place it on the two pins that correspond to

the interrupt of your choice. If an interrupt is not required by your

software program, place the jumper in the “no interrupt” position.

Jumper

INT 3 position

INT 4 position

INT 5 position

INT 7 position

no interrupt

Jumper

Selection

INT 3

INT 4

INT 5

INT 7

Interrupt

Selection

IRQ3

IRQ4

IRQ5

IRQ7

no interrupt

18305

(Factory Default setting: no interrupt.)

This end is facing

toward the PCB

gold fingers.

10. With a hand on each end of the board, slowly slide the 1784-KT into

the I/O expansion slot. Firmly insert the edge card connector into the

I/O expansion slot connector.

11. Install the retaining screw into the retaining bracket and tighten.

12. Install all brackets (if applicable) and covers removed in step 2.

Different configurations require different procedures for connecting the

1784-KT to a PLC. The procedures begin on page 10. Before you make the

connections, make sure you have the correct cables. Cables for various

PLCs are listed below.

For: Use Cable with Cat. No.: See Page:

PLC2 Family Programmable Controllers 1784CP2 10

PLC3 Family Programmable Controllers 1784CP3 11

PLC5/10, 5/12, 5/15,5/25, 5/VME (6008LTV), and

PLC5/250 Programmable Controllers

1784CP 12

PLC5/11, 5/20, 5/30, 5/40, 5/60, 5/80, and

5/VME (1784V40) Programmable Controllers

1784CP6 (refer to

publication 17842.26)

1784CP7 Adapter with

1784CP Cable (refer to

publication 17842.29)

Connecting

our 1784KT

Communication Interface Module

Cat. No. 1784KT/B

Installation Data

ATTENTION: To avoid personal injury, always disconnect the

ac power before making the cable connection.

Connecting

our 1784KT to a PLC2

To connect the 1784-KT to a PLC-2, follow the steps below:

1. Plug the 62-pin connector end of the 1784-CP2 cable into the

1784-KT and secure with captive screws.

1784 - KT

Board

Program

Panel"

1784 - CP2 Cable

16687a

2. Connect the opposite end of the 1784-CP2 cable into the PROGRAM

PANEL connector on the PLC-2.

3. Reinstall the ac power cord and turn on the computer.

Figure 1 shows cable pinouts for the 1784-CP2 cable.

Figure 1

Cable

Pinouts for the 1784CP2 Cable

A2 TXD

A2 TXD RET

A2 OUT0 RET

A2 OUT0

A2 RXD RET

A2 IN0 DET

A2 RXD

A2 IN0

Cable shield

tied to chassis

62 pin

D - shell

16688

Program Panel"

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