Allen-Bradley DF1 User manual

ALLEN-BRADLEY DF1 INTEGRATION

KIT FOR ioCONTROL

USER’S GUIDE

SNAP Simple I/O™

SNAP Ethernet I/O™

SNAP Ultimate I/O™

Form 1555-070416—April, 2007

43044 Business Park Drive • Temecula • CA 92590-3614

Phone: 800-321-OPTO (6786) or 951-695-3000

Fax: 800-832-OPTO (6786) or 951-695-2712

www.opto22.com

Product Support Services

800-TEK-OPTO (835-6786) or 951-695-3080

Fax: 951-695-3017

Email: suppor[email protected]

Web: support.opto22.com

Allen-Bradley DF1 Integration Kit for ioControl User’s Guide

Form 1555-070416—April, 2007

Printed in the United States of America.

The information in this manual has been checked carefully and is believed to be accurate; however, Opto 22 assumes no

responsibility for possible inaccuracies or omissions. Specifications are subject to change without notice.

Opto 22 warrants all of its products to be free from defects in material or workmanship for 30 months from the

manufacturing date code. This warranty is limited to the original cost of the unit only and does not cover installation, labor,

or any other contingent costs. Opto 22 I/O modules and solid-state relays with date codes of 1/96 or later are guaranteed for

life. This lifetime warranty excludes reed relay, SNAP serial communication modules, SNAP PID modules, and modules that

contain mechanical contacts or switches. Opto 22 does not warrant any product, components, or parts not manufactured by

Opto 22; for these items, the warranty from the original manufacturer applies. These products include, but are not limited to,

OptoTerminal-G70, OptoTerminal-G75, and Sony Ericsson GT-48; see the product data sheet for specific warranty

information. Refer to Opto 22 form number 1042 for complete warranty information.

Cyrano, Opto 22 FactoryFloor, Optomux, and Pamux are registered trademarks of Opto 22. Generation 4, ioControl, ioDisplay,

ioManager, ioProject, ioUtilities, mistic, Nvio, Nvio.net Web Portal, OptoConnect, OptoControl, OptoDataLink, OptoDisplay,

OptoOPCServer, OptoScript, OptoServer, OptoTerminal, OptoUtilities, PAC Control, PAC Display, PAC Manager, PAC Project,

SNAP Ethernet I/O, SNAP I/O, SNAP OEM I/O, SNAP PAC System, SNAP Simple I/O, SNAP Ultimate I/O, and SNAP Wireless

LAN I/O are trademarks of Opto 22.

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trademarks of Microsoft Corporation in the United States and other countries. Linux is a registered trademark of Linus

Torvalds. Unicenter is a registered trademark of Computer Associates International, Inc. ARCNET is a registered trademark of

Datapoint Corporation. Modbus is a registered trademark of Schneider Electric. Wiegand is a registered trademark of Sensor

Engineering Corporation. Nokia, Nokia M2M Platform, Nokia M2M Gateway Software, and Nokia 31 GSM Connectivity

Terminal are trademarks or registered trademarks of Nokia Corporation. Sony is a trademark of Sony Corporation. Ericsson is

a trademark of Telefonaktiebolaget LM Ericsson.

All other brand or product names are trademarks or registered trademarks of their respective companies or organizations.

Allen Bradley DF1 Integration Kit for ioControl User’s Guide iii

iii

Table of Contents

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1

ioControl Architecture . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

ioControl Implementation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Addressing Limitations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

Installing Integration Kit Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

ioControl Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Configuring Serial Ports . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

With a Tag Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

Without a Tag Database . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Data Highway Communication Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

Data Highway Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Direct Serial Communication Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Direct Serial Communication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Subroutines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

AB Typed Read / AB Protected Typed Logical Read . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

AB Typed Write / AB Protected Typed Logical Write . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

AB_Slave . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Parameters . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

File Types . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

Allen Bradley DF1 Integration Kit for ioControl User’s Guide

Error Reporting for ABMaster Subroutines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Error Codes Reported by the 1770-KF2 Module . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Error Codes Reported by the PLC . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

PLC Extended Status Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Errors Reported by ioControl Master Subroutines . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Errors Reported by ioControl Slave Subroutine . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Allen Bradley DF1 Integration Kit for ioControl User’s Guide 1

1: Chapter 1

Allen-Bradley DF1 Integration

Kit for ioControl

Overview

Introduction

The Allen-Bradley DF1 Integration Kit (Part # IOP-INT-ABDF1) provides users of Opto 22’s ioControl

software (version 6.0 and above) an easy method of communicating with Allen-Bradley drivers or

PLCs using the DF1 protocol. Opto 22 controllers can act as either a master or a slave device. They can

be connected directly to the serial port on an Allen-Bradley PLC or to Data Highway networks using

standard Data Highway interface devices.

The kit includes a set of ioControl commands that can be used anywhere within an ioControl

strategy. These commands provide ioControl applications the ability to exchange floating point,

integer, I/O, ASCII, or string data with Allen-Bradley devices that support the DF1 protocol. The

command set is made up of ioControl subroutines that transmit and receive serial messages

according to the DF1 protocol specifications in the Allen-Bradley Data Highway/Data Highway

Plus/DH-485 Communication Protocol and Command Set, publication number 1770-6.5.16.

Requirements

To implement an interface between an Opto 22 controller and an Allen-Bradley device, you will

need:

•The Allen-Bradley DF1 Integration Kit

•An Opto 22 SNAP Ethernet-based controller (SNAP PAC R-series, SNAP-UP1-ADS, SNAP-LCE,

SNAP-UP1-D64, SNAP-UP1-M64) with 6.0 or later firmware

•A PC running ioControl software (version 6.0 or later)

•A serial cable you provide to connect the Opto 22 controller to either the Data Highway

interface device or the serial port of an Allen-Bradley PLC

•A PLC capable of supporting DF1 commands Typed Read/Typed Write or Protected Type Logical

Read/Protected Type Logical Write, such as the SLC 500 and PLC5 Allen-Bradley PLCs.

IOCONTROL ARCHITECTURE

Allen Bradley DF1 Integration Kit for ioControl User’s Guide

ioControl Architecture

ioControl Implementation

The Allen-Bradley DF1 Integration Kit consists of a set of ioControl subroutines.

The master subroutines for the PLC5 family support the Typed Read (Read Block) and Typed Write

(Write Block) commands. In addition, the PLC5 slave subroutine implements the Typed Read (Read

Block) and the Type Write (Write Block) commands. For the SLC family of PLCs, the commands

Protected Typed Logical Read and Protected Typed Logical Write have been implemented in both

the master and slave subroutines. All these commands have been implemented to the element

(word) level of addressing.

Addressing Limitations

The integration kit has the following PLC addressing limitations:

•The integration kit does not support reads or writes of individual bits.

•The integration kit does not allow reading and writing to PLC file numbers 2, 4, 5, or 6.

•The integration kit will not read or write to any PLC data files that have a file type other than

integer, float, I/O, ASCII, string, or binary.

•The ioControl subroutines will access only the least significant 16 bits of any ioControl table or

variable. The Allen-Bradley PLCs are 16-bit devices.

•Only one master can access the slave subroutines at a time.

•When the numbers are negative, the upper 16 bits will be set to 1 within the ioControl table to

keep the numbers consistent with the PLC.

Installation

Installing Integration Kit Files

Insert the OptoIntegration CD to run the SETUP.EXE program.

The setup wizard will create the folder Program Files\Opto 22\Allen-Bradley DF1 Integration Kit for

ioControl. This folder contains all the subroutine and support files for the integration kit, as well as

example ioControl strategies.

NOTE: Integration kit documentation is in PDF format. If you don’t already have Adobe Acrobat Reader

installed, you will need it to view and print the supporting document. After installation is complete, you

will have the option of installing Acrobat Reader.

INSTALLATION

Allen Bradley DF1 Integration Kit for ioControl User’s Guide 3

ioControl Configuration

To use the integration kit with an ioControl strategy:

1. Start ioControl and open the strategy that you intend to use with the integration kit.

2. For each subroutine you intend to use with your ioControl strategy, choose

Configure➞Subroutine Includes. Click the Add button and use the browser to select the

subroutine file (.ISB extension).

The subroutine appears in the Strategy Tree under the Subroutines Included folder.

When you have added all the subroutines you need, they are ready for use in your strategy.

Configuring Serial Ports

With a Tag Database

If you are using a tag database, follow these steps to configure the serial ports:

1. If ioManager is not already open, choose Start➞Programs➞Opto 22➞ioProject➞ioManager.

2. Open the existing tag database or create a new one by choosing File➞New.

3. Double-click the I/O Units folder on the Strategy Tree.

4. In the Configure I/O Units dialog box, highlight the I/O unit’s name in the list and skip to step 6,

or click Add to add a new I/O unit.

5. Enter a name and description. In the Type drop-down list, choose your controller by its part

number. In the Address field, enter the IP address of your controller. Click OK.

6. If you are connecting to the DH interface device using the serial port on the controller, follow

these steps to configure the serial port:

a. Still in the Configure I/O Units dialog box, click the Communications button and choose

Communication Port Control from the pop-up menu.

b. Click to put a check mark in the Used box.

c. For the port number you are using, click the Value field for Control Function for

Communication Port. From the drop-down list, choose None.

d. Click OK.

7. If you are connecting to the DH interface device using a SNAP serial communication module on

the I/O unit, follow these steps to configure the serial module:

a. In the Configure I/O Units dialog box, click the Modules button and choose Serial Modules

from the pop-up menu.

b. For the module and port you are using, click the Status column and choose Enabled from

the drop-down list. Change the serial settings as necessary. Click OK.

8. Choose Tools➞Send Configuration to I/O Unit. Make sure that the correct I/O unit is

highlighted and that the Address List field shows the correct IP addresses to send the

configuration to. Also make sure Save to Flash is checked. Click Send.

IMPORTANT: Make sure you save your configuration to flash, or your settings will be lost when power

is removed.

INSTALLATION

Allen Bradley DF1 Integration Kit for ioControl User’s Guide

Without a Tag Database

If you are not using a tag database, you must still configure the serial ports using ioManager:

1. If ioManager is not already open, choose Start➞Programs➞Opto 22➞ioProject➞ioManager.

2. Click the Inspect button or choose Tools➞Inspect.

3. In the IP Address field, type the IP address of the I/O unit or choose it from the drop-down list.

4. If you are connecting to the DH interface device using the serial port on the controller, click the

Communications button and choose Communication Port Control from the pop-up menu. For

the port you are using, click the Value column for Control Function For Communication Port and

choose None from the drop-down list. Click Apply.

5. If you are connecting to the DH interface device using a SNAP serial communication module on

the I/O unit, click the Communications button and choose Serial Modules. In the Serial Module

Number field, choose the module’s position on the rack. Change the serial settings as necessary.

Click Apply.

6. Click the Status Write button. Under Operation Commands, select Store Configuration to Flash.

Click Send Command.

IMPORTANT: Make sure you save your configuration to flash, or your settings will be lost when power

is removed.

Data Highway Communication Wiring

The cables used for connecting an Opto 22 controller to a Data Highway interface device are

specified in the drawings below. The cables require a DB25 female connector on the Data Highway

interface end. Current Opto 22 controllers use screw-type terminal connectors.

Opto 22 RS-232 serial connection to DH interface device:

INSTALLATION

Allen Bradley DF1 Integration Kit for ioControl User’s Guide 5

Opto 22 RS-422 serial connection to DH interface device:

Data Highway Communication

In order to communicate on the Data Highway network with an Opto 22 controller and a Data

Highway interface device (for example, KF module or DL2000), the settings on the Data Highway

interface device for baud rate, parity, and number of stop bits must match the serial handle passed to

the subroutine, or the serial settings on the serial module. In addition, the following parameters

should be set for the Data Highway interface device’s asynchronous port:

•Use BCC error check mode.

•Do not use imbedded response mode.

•Disable handshaking.

•Use full duplex.

Direct Serial Communication Wiring

The cables used for connecting an Opto 22 controller to an Allen-Bradley PLC serial port are specified

in the drawings below. The cable for a PLC5 requires a DB25 male connector on the PLC5 end. The

cable for a SLC requires a DB9 female connector on the SLC end. Current Opto 22 controllers use

screw-type terminal connectors.

Opto 22 RS-232 serial connection to PLC5/11 channel 0:

SUBROUTINES

Allen Bradley DF1 Integration Kit for ioControl User’s Guide

Opto 22 RS-232 serial connection to SLC5/04 RS232 port:

Direct Serial Communication

Full-duplex or half-duplex mode can be used to communicate directly between an Opto 22

controller and an Allen-Bradley slave device. Master subroutines only support half-duplex mode.

Subroutines

AB Typed Read / AB Protected Typed Logical Read

Description

AB Typed Read reads a block of data from a PLC 5 data file. AB Protected Typed Logical Read reads a

block of data from an SLC 500 data file.

Parameters

Parameter Table (Integer 32 Values)

Enter the parameter table name in the field next to the prompt PARAMETER TABLE when calling the

subroutine.

Element Description

Element 0 Destination address of the slave device. PLC-5: 00-77 Octal.

Element 1 File Number within the slave device.

Element 2

Indicates the Starting Element Number within the file of the slave device.

If accessing an Input or Output file, use this element to indicate the position of the I/O module.

Example: If you have an input module in position 1, Element 2 should be set to 1 when trying

to access the input or output file from that module.

Element 3 Starting Table Element Number in the associated ioControl table where source data to be

written to the slave device is stored.

Element 4 Number of elements to copy.

Element 5 Amount of time in seconds that this subroutine will wait for a reply from a slave device.

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