Allen-Bradley DL50 Installation Manual

Dataliner DL50 F11J, F11JC, F21J, F21JC displays high visibility messages. Messages can be viewed from up to 240 feet (73.2 meters) away. The DL50 can receive message data from a variety of sources, such as DL20 or DL40 displays, Programmable Controllers and Personal Computers. The DL50 can also communicate using either a Simplex or Duplex Protocol and operates in one of three different modes.

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Allen-Bradley

Dataliner DL50

Series Message

Display

(Cat. No. 2706-F11J,

-F11JC, -F21J, -F21JC)

Installation

Manual

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. “Safety Guidelines for the Application,

Installation and Maintenance of Solid State Controls” (Publication SGI-1.1) describes some important differences between solid state equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.

In no event will the Allen-Bradley Company be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.

The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, the Allen-Bradley Company cannot assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Allen-Bradley Company with respect to use of information, circuits, equipment, or software described in this manual.

Reproduction of the contents of this manual in whole or in part, without written permission of the Allen-Bradley Company, is prohibited.

Throughout this manual we use notes to make you aware of safety considerations.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.

Attentions help you:

• identify a hazard

• avoid the hazard

• recognize the consequences

Note:

Identifies information that is especially important for successful application and understanding of the product.

PLC and PLC-5 are registered trademarks of Allen-Bradley Company, Inc.

SLC and Dataliner are trademarks of Allen-Bradley Company, Inc.

IBM is a registered trademark of International Business Machines, Incorporated.

Table of Contents

Dataliner DL50 Series

User Manual

Using This Manual

Introduction to the DL50

Configuring the DL50

Installing the DL50

Chapter 1

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview of this Manual

Intended Audience

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Conventions Used . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Attention Symbol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Related Publications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

1–1

1–2

1–3

Chapter 2

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Character Number and Size . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Major Components . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Descriptions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Operating Modes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communications Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Communication Examples . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2–1

2–2

2–4

2–6

2–7

2–8

Chapter 3

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DIP Switch Locations

DIP Switch Functions

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Setting Switches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Slave Address

Selecting Protocol

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Character Height . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Baud Rate . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Operating Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Enabling/Disabling Checksum

Selecting Display Type

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selecting Default Display Color . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DL50 Reset . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3–4

3–5

3–6

3–7

3–1

3–2

3–3

3–4

Chapter 4

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Mounting Methods . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Surface Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–1

4–2

Wall Mounting- Using Angle Brackets . . . . . . . . . . . . . . . . . . . . . . 4–3

Wall Mounting- Using Adjustable Brackets (Catalog No. 2706-NJ3) 4–4

Chain Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–5

Back to Back Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4–6

Table of Contents

Dataliner DL50 Series

User Manual

Installing the DL50

(continued)

Serial Communications

Wiring Recommendations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

European Union Directive Compliance . . . . . . . . . . . . . . . . . . . . . . . . .

Grounding Recommendations

Connecting Power

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Annunciation Relay Connections

RS-232 Connections

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

RS-485 Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Connection to DL20/DL40 “Master” Displays . . . . . . . . . . . . . . . . . . .

Connection as Slave to DL20 “Master” RS-232 Port

Connection to Personal Computers

. . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . .

Black Box LD485A-MP Configuration . . . . . . . . . . . . . . . . . . . . . .

Connection to Allen-Bradley Programmable Controllers . . . . . . . . . . .

BASIC Module

Catalog No. 1771-DB

Catalog No. 1746-BAS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Peripheral Communications Module

Catalog No. 1771-GA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

ASCII I/O Module

Catalog No. 1771-DA . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Flexible Interface Module

Catalog No. 2760-RB . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4–9

4–10

4–11

4–12

4–14

4–16

4–18

4–19

4–20

4–21

4–22

4–23

4–24

4–25

Chapter 5

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Protocols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Host Device Compatibility

Simplex Protocol

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 1: Optional Control Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 2: ASCII Text . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 3: Optional Display Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 4: Slave Address . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 5: Line Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 6: Carriage Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Clearing Lines of Text

Performance

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–1

5–2

5–3

5–5

5–6

5–7

Table of Contents

Dataliner DL50 Series

User Manual

Serial Communications

(continued)

Slave Mode Operation /

Examples

Bootstrap Mode

Duplex Protocol . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 1: Control Byte . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 2: ASCII Text or Special Control Characters

Field 3: Slave Address

. . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 4: Line Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 5: Carriage Return . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Field 6: Message Attributes

Field 7: Checksum

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Response from the DL50 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5–8

5–9

5–10

5–13

5–14

Chapter 6

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Slave Mode Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 1 (Simplex Protocol)

Example 2 (Duplex Protocol)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 3 (Relay On)

Example 4 (Relay Off)

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Example 5 (Send 2-Line Message)

Programming Examples

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using the DL50 to Display Messages From a DL20

Using the DL50 to Display Messages From a DL40

. . . . . . . . . . . .

Updating Embedded Variables from a DL20 or DL40

DL50 BASIC Alarm Programming Example

. . . . . . . . . .

. . . . . . . . . . . . . . . . .

Flexible Interface Module Example

PLC-5 Channel 0 Simplex Example

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . .

PLC-5 Channel 0 Duplex Example

1746-BAS Duplex Example

. . . . . . . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

DL50 Response Variables . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6–5

6–6

6–8

6–10

6–12

6–15

6–18

6–1

6–2

6–3

6–4

6–22

6–26

6–28

Chapter 7

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bootstrap Mode . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

How to Tell if Firmware Is Corrupted . . . . . . . . . . . . . . . . . . . . . . . . . .

Updating Firmware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7–1

7–2

Table of Contents

Dataliner DL50 Series

User Manual

Troubleshooting and

Maintenance

Specifications

Display Descriptions

ASCII Character Set

Dimensions

Serial Address Settings

Internal Wiring Diagrams

Checksum Calculations

Character Attribute

Worksheet

European Union Directive

Compliance

Glossary

Index

Chapter 8

Chapter Objectives . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Troubleshooting Chart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Using LED Indicators and Diagnostic Mode

Fuse Replacement

. . . . . . . . . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Replacement Parts List . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8–1

8–3

8–7

8–8

8–9

Chapter 9 Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

Appendix G

Appendix H

Chapter Objectives

Overview of this Manual

Using This Manual

A–B

Chapter

Read this chapter to familiarize yourself with the rest of the manual. You will learn about:

•

Contents of this manual

•

Intended audience

•

Conventions used

•

Warnings and cautions

•

Related publications

Table 1.A

Chapter Descriptions

Chapter

Title

Using this Manual

Introduction to the DL50

Configuring the DL50

Installing the DL50

Serial Communications

Slave Mode

Operation/Examples

Bootstrap Mode

Troubleshooting and

Maintenance

Specifications

Appendices, Glossary, Index

Purpose

Provides an overview of the manual.

Describes the main features and operating modes of the DL50.

Provides instructions for configuring the

DL50 using the configuration DIP switches.

Provides step-by-step instructions on how to install the DL50.

Provides instructions on how to communicate with the DL50 through a host device.

Describes the operation of the DL50 while in the slave mode. Provides example messages (Simplex and Duplex protocols) for a variety of devices.

Describes how to update the DL50 firmware using the bootstrap mode.

Flow chart for troubleshooting a DL50.

Includes general maintenance procedures.

Provides electrical, mechanical, and environmental specifications.

1–1

Chapter 1

Using This Manual

Intended Audience

Conventions Used

Attention Symbol

CE Directives

Only qualified service personnel may configure and install Dataliner DL50

Message Displays. No operator access to internal configuration switches or connectors is required.

The following conventions are used:

•

The Catalog No. 2706ĆF11J, ĆF11JC, ĆF21J, and ĆF21JC DL50 Series

Marquee Message Displays are referred to as the DL50.

•

When an ASCII character (printable or nonĆprintable) is specified, the character is always followed by the decimal equivalent in parentheses. Refer to Appendix B for an ASCII conversion chart.

For example: When the DL50 receives a , it clears the buffer.

•

DL50 displays are shown in a box. For example:

Motor ON

An Attention symbol in this manual draws your attention to information that is especially important.

ATTENTION: Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss.

If the DL50 is installed within the European Union, Appendix H gives the legal requirements.

1–2

Related Publications

Chapter 1

Using This Manual

Table 1.B lists some publications that you may require for additional reference.

Table 1.B

Related Publications

Publication / Catalog

Number

2706-800

2706-814

2706-807

2706-808

1771-6.5.13

1771-6.5.34

1746-ND005

2760-ND001

2760-ND003

2760-ND002

1775-6.5.4

1747-6.2

1785–7.1

Title

Dataliner



DL10 Series User’s Manual

Dataliner



DL20 Series User’s Manual

Dataliner



DL40 Series Message Display

User’s Manual

Dataliner



DL40 Series Offline Programming Software

ASCII I/O Module (Catalog No. 1771-DA) User’s Manual

BASIC Module (Catalog No. 1771-DB) User’s Manual

SLC 500

BASIC Module (Catalog No. 1746-BAS)

Design and Integration Manual

Flexible Interface Module (Catalog No. 2760-RB)

User’s Manual

DF1/ASCII Protocol Cartridge

(Catalog No.2760-SFC1)

(for 2760-RB module)

User’s Manual

DH-485 Protocol Cartridge (Catalog No. 2760-SFC2)

(for 2760-RB module)

User’s Manual

Peripheral Communications Module (Catalog No. 1775-GA)

User’s Manual

SLC 5/03



(Catalog No. 1747–L532)

User’s Manual

SLC 5/04



(Catalog No. 1747–L542)

User’s Manual

PLC-5



Programmable Controller (Catalog No. 1785–LT2)

Quick Reference

1–3

Chapter Objectives

Overview

Features

A–B

Chapter

Introduction to the DL50

This chapter describes the basic features, functions, and operating modes of the DL50.

The DL50 displays high visibility messages. Messages can be viewed from up to 240 feet (73.2 meters) away. This high visibility allows messages

(fault, status, etc.) to be seen and responded to quickly.

Messages on the 2706-F11J and -F21J units are displayed in red. Messages on 2706-F11JC and -F21JC tricolor units may be displayed in red, green or amber, with individual character control.

The DL50 can receive message data from several sources. Messages are sent to the DL50 in a simple ASCII format. A DL20 or DL40 display can act as a controller, or messages can originate from a 1771-T60 Industrial Terminal running Allen-Bradley Distributed Diagnostics and Machine Control

(DDMC) software. A DL50 can also receive message data from other intelligent devices such as a computer or BASIC Modules

(Catalog No. 1771-DB / Catalog No. 1746-BAS).

Note: Refer to

In addition, the DL50 has:

•

RS-485 port for multidrop communications.

•

RS-232 port for point-to-point communications.

•

Relay output for turning on a lamp, audible alarm, etc.

•

Anti-glare display window.

•

Variety of display modes such as wiping, smooth scrolling, etc.

•

Easy DIP switch configuration.

•

Multiple mounting options including: Flush Mount, Back-to-Back

Mounting, and Chain Suspension. Optional mounting brackets (Catalog

No. 2706-NJ3) are also available.

•

Enclosure rated for NEMA Type 12 & 13 (UL-listed) and designed but not UL listed for Type 4 (recommended for indoor use only).

•

Universal power supply accepts 100–240 VAC and 50-60 Hz.

•

Firmware (in flash EPROM) can be updated using a personal computer and Firmware Update Disk (2706-NR4).

•

Fault isolation LEDs show DL50 status and aid in troubleshooting.

•

Diagnostic modes help isolate faults down to a serviceable component.

•

Reduced Brightness Mode prolongs the life of the display’s electronics by reducing heat generated, thus preventing the DL50 from exceeding the internal operating temperature limit.

2–1

Chapter 2

Introduction to the DL50

Character Number and Size

Major Components

The size and number of characters depends on the size of the DL50 display.

Select the size of the characters based upon visibility requirements and message length

Table 2.A

DL50 Display:Color; Number and Size of Characters

Catalog No.

2706-F11J

Display

Color

Red

2706-F11JC

2706-F21J

2706-F21JC

Red,

Green,

Amber

Red

Red,

Green,

Amber

Number of Characters

4.8 inch (122 mm) 2.1 inch (53 mm)

1 line of 10 2 lines of 20

1 line of 10

1 line of 20

2 lines of 20

2 lines of 40

Refer to Figure 2.1 and Figure 2.2 for the location of the major features/components. Following the illustrations are descriptions of each.

Figure 2.1

Major Features

A-B

Allen-Bradley

Dataliner

OVERTEMP

STATUS

➀ Over Temperature

Indicator

➁

Status Indicators

Catalog No. 2706-F11J, -F11JC shown, Catalog No. 2706-F21J and F21JC are similar

2–2

RESET

➄

Reset Button

➈

Conduit

Openings

Conduit Openings

➈

Figure 2.2

Major Components

Catalog No. 2706-F11J, -F11JC

Installation /

Diagnostic

Information Label

Processor Board

Chapter 2

Introduction to the DL50

➈

Conduit Openings

➃

Power Connections

➂

Relay Output Connections

➇

RS-485 Port Connections

➆

RS-232 Port Connections

➅

Configuration DIP Switches

Catalog No. 2706-F21J, -F21JC

Installation /

Diagnostic

Information Label

Processor Board

➈

Conduit

Openings

2–3

Chapter 2

Introduction to the DL50

Descriptions

➀

OVERTEMP Indicator

The LED on the upper right hand corner of the display indicates if the DL50 is in the Reduced Brightness Mode. This LED is normally off. If the temperature inside the DL50 reaches its internal operating limit, the DL50 will enter the Reduced Brightness Mode, and this LED will begin flashing. If the LED is on steady, the DL50 is in an automatic shutdown mode.

The ambient temperature must be reduced to continue operation.

➁

STATUS Indicators

The two LEDs at the lower right hand corner of the display indicate the status of the display. When operating, the LEDs are on continuously. If a hardware fault is detected, the LEDs will flash.

➂

Relay Output Connections

These connections provide both normally open and normally closed contacts.

The relay contacts are energized when a message is received which has a line number of 48. The relay contacts are de-energized when a message is received with a line number of 49. The relay contact terminals are labeled:

Terminal Number*

Terminal #1 is top terminal.

Label

COM

Definition

Normally Open

Normally Closed

Common

ATTENTION:

➃

Power Connections

Connect the DL50 power source to these terminals:

Terminal Number*

Terminal #1 is top terminal.

Label

L2N

E. GND

Definition

Line 1 (Hot)

Line 2 (Neutral)

Earth Ground

➄

Reset Button

This momentary contact switch re-initializes the DL50. After DIP switch configurations have been changed, the DL50 must be reset before the new configuration takes effect

2–4

Chapter 2

Introduction to the DL50

➅

Configuration DIP Switches

Use these DIP switches to select:

•

Slave Address

•

Protocol (Simplex or Duplex)

•

Duplex Checksum (On or Off)

•

Character Height

•

DefaultColor (TriĆcolor displays)

•

Baud Rate

•

Mode Select

•

Hardware Type

Chapter 3 provides a complete description of these switches.

➆

RS-232 Port Connections

The RS-232 communications port allows point-to-point communications between the DL50 and a host at distances of up to 50 feet (15.2 meters).

The following terminal connections are provided

Terminal Number*

Terminal #1 is top terminal.

Label

Definition

Transmit Line

Receive Line

Signal Ground

➇

RS-485 Port Connections

The RS-485 communications port allows multi-drop communications. The cable distance between the last DL50 and host device (master) may be up to

4,000 feet (1219 meters). The following terminal connections are provided:

Label

Function

E. GND

Shield

COM

TERM

Definition

Earth Ground

Shield

Common

RS-485 + (B)

RS-485 - (A)

Termination

➈

Conduit Openings

External power and communications lines enter the enclosure through these openings.

2–5

Chapter 2

Introduction to the DL50

Operating Modes

The DL50 operates in one of three modes:

•

Slave Mode.

(Chapter 6)

Slave mode is the normal operating mode of the DL50. In this mode the

DL50 will accept packets of data from either the RS-232 or RS-485 port.

The DL50 supports both simplex and duplex communications.

•

Diagnostic Mode.

(Chapter 8)

Use this mode if the DL50 is not functioning properly. The diagnostic mode helps isolate faults down to a serviceable component.

•

Bootstrap Mode.

(Chapter 7)

Use the bootstrap mode if the firmware needs to be updated to incorporate new features. The DL50 may be reprogrammed using either the RS-232 or RS-485 communications ports. You may program multiple DL50s simultaneously on an RS-485 network.

Reduced Brightness Mode

In addition to the three operating modes, the DL50 may enter a Reduced

Brightness Mode if the temperature inside the enclosure exceeds acceptable limits (+167 F / +75 C). In this mode, the DL50 turns on the

OVERTEMP Indicator and reduces the brightness of the display LEDs. This reduces current consumption which reduces the amount of heat generated. If the temperature remains too high in the reduced brightness mode, the DL50 will shut down completely. In the shutdown mode, the DL50 clears the display leaving only the OVERTEMP LED on.

Note:

If the DL50 is operated in its specified ambient temperature range and operating conditions, the DL50 should be able to operate at full brightness.

2–6

Chapter 2

Introduction to the DL50

Communications Overview

Host Programmable Controller or Computer

1771 Remote I/O,

Parallel I/O

The DL50 has both an RS-232 and an RS-485 communications port.

Figure 2.3 illustrates some of the most common point-to-point and network applications.

Figure 2.3

Communications Overview

DL50 DISPLAY

DL40 DISPLAY

MASTER

RS-485

To Other Dataliner Displays

All Messages

Are Stored Here

DL50 DISPLAY

Host Programmable Controller or Computer

Parallel I/O Interface

DL20 DISPLAY

MASTER

All Messages

Are Stored Here

RS-232

RS-422

RS-485

DL50 DISPLAY

Host Programmable Controller* or Computer

RS-232 Interface

*PLC-5/11, 5/30, 5/40, 5/60, and 5/80

DL50 DISPLAY

To Other Dataliner Displays

RS-485

DL50 DISPLAY

SLC 5/03 or 5/04

RS-232 Interface

DL50 DISPLAY

PLC or SLC Controller

Remote I/O

MessageView Terminal

RS-232 Interface

DL50 DISPLAY

2–7

Chapter 2

Introduction to the DL50

Host Programmable Controller,

Computer or Workstation

RS-232 Interface

Figure 2.3

Communications Overview (continued)

DL50 DISPLAY

Host Programmable Controller,

Computer or Workstation

RS-232 Interface

RS-232 RS-485

Converter

RS-485

DL50 DISPLAY

To Other Dataliner Displays

RS-485

DL50 DISPLAY

Host Programmable Controller

RS-232

BASIC Module (Catalog No. 1771-DB)

Peripheral Communications Module (Catalog No. 1771-GA)

ASCII I/O Module (Catalog No. 1771-DA)

Flexible Interface Module (Catalog No. 2760-RB)

Communication Examples

RS-485

DL50 DISPLAY

To Other Dataliner Displays

RS-485

DL50 DISPLAY

Refer to Chapter 6 (Slave Mode Operation / Examples) and

Chapter 4 (Installing the DL50) for specific host device interface connections and programming examples.

2–8

Chapter Objectives

DIP Switch Locations

Configuring the DL50

A–B

Chapter

This chapter describes how to configure the DL50 using DIP switches.

Figure 3.1 shows the location of the DIP switches used for configuration.

Figure 3.1

DIP Switch Locations

DL50 Processor Board

(Refer to Figure 2.2 for Location)

RESET

DIP Switch Functions

1 2 3 4 5 6 7 8

DIP Switch S1 DIP Switch S2 DIP Switch S3

The three 8 position DIP switches select the following functions:

•

Slave Address

•

Duplex or Simplex Protocol

•

Character Height

•

Baud Rate

•

Mode Selection

•

Checksum Enable/Disable (Duplex protocol only)

•

Default Color (Tri-color displays only)

3–1

Chapter 3

Configuring the DL50

Setting Switches

Figure 3.2 illustrates how to select the various functions with DIP switches.

Figure 3.2

DIP Switch Functions

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

1 2 3 4 5 6 7 8

OFF

SLAVE ADDRESS

(MSB LSB)

PROTOCOL

ON = Duplex

OFF = Simplex

CHARACTER HEIGHT

2 3

OFF OFF = 2.1 INCH

OFF ON = 4.8 INCH

ON OFF = Auto-Select

BAUD RATE

4 5

OFF OFF = 300

OFF ON = 1200

ON OFF = 9600

ON ON = 19200

OPERATING MODE

6 7

OFF OFF = Slave

OFF ON = Test

DUPLEX CHECKSUM

ON = Enabled

OFF = Disabled

Reserved

DISPLAY TYPE

1 2

OFF OFF = 2706-F11J

OFF ON = 2706-F21J

ON OFF = 2706-F11JC

ON ON = 2706-F21JC

BAD CODE

CHECKSUM

ON = Bad Checksum

Simulated

OFF = Normal

Operation

DEFAULT COLOR*

3 4

OFF OFF = Red

OFF ON = Green

ON OFF = Amber

ON ON = Reserved (Red)

*Tri-color displays only.

3–2

Selecting Slave Address

Chapter 3

Configuring the DL50

If the “slave mode” has been selected, switches S1-1 through S1-8 define an address for the DL50 display. The values for each switch are illustrated below. The address of the DL50 is the sum of the values for all of the switches (1 - 8) that are turned on.

Note: SLAVE MODE is always selected for normal operation.

Switch Number

Value (decimal)

128

Slave Address

Switch Number

Switch Position

Addressing Example

1 2 3 4 5 6

ON OFF ON OFF OFF ON

7 8

ON OFF

The above example address = 128 + 32 + 4 + 2 = 166.

Note: Appendix D provides switch positions for all possible addresses.

Note: A display with a slave address of 127 (Simplex Protocol) or 255

(Duplex Protocol) will accept all messages regardless of the message address.

Certain other slave addresses are not valid for DL50 displays when connected as slaves to a DL20 or DL40 master. The illegal DL20/DL40 decimal addresses are: 0, 4, 6, 7, 13, 16, 18, 20, 22, 43, 45, 48-57, and

128-255.

When multiple DL50 displays are placed on one RS-485 link, more than one

DL50 can have the same address when using Simplex Protocol. DL50’s with the same address respond to all commands addressed to them.

Note: DL50’s operating in Duplex Protocol cannot have the same address with the exception of address 255.

3–3

Chapter 3

Configuring the DL50

Selecting Protocol

The DL50 communicates with a host device using strings of ASCII characters. The DL50 can communicate using one of two protocols:

•

Simplex. When simplex protocol is selected, the DL50 does not provide any response to a master device. The master sends out packets of data, each containing message text and other information. The DL50 uses this information to display messages.

•

Duplex. When duplex protocol is selected, the DL50 responds to messages with handshaking and checksum bytes.

Switch S2-1 selects the protocol:

Protocol Selection Switch

Protocol

Duplex

Switch Number S2-1

Simplex OFF

Note: Select Simplex when operating the DL50 as a slave to DL20 or DL40 message displays.

Selecting Character Height

When using Simplex Protocol, switches S2-2 and S2-3 determine character height as shown below.

Character Height Switches

Character Height Switch Number S2-2

2.1 inch (53.4 mm)

4.8 inch (114 mm)

Auto-Select

Reserved

OFF

Switch Number S2-3

OFF

If you are using a 4 line DL20 or DL40 as a master, the Auto-Select function allows the DL50 to select the character height based upon the line number as shown in Table 3.A.

When using duplex protocol, message attributes such as character height are selected using slave mode commands (refer to Chapter 5).

3–4

Selecting Baud Rate

Chapter 3

Configuring the DL50

Table 3.A

Character Height With Auto-Select Enabled

Line Number From Master

Text is Displayed On This

Line

Auto-Select

Character Height

2.1 inches (53.4 mm)

➀

➁

2.1 inches (53.4 mm)

4.8 inches (121.9 mm)

➂

Not Applicable

1 & 2

➃

2.1 inches (53.4 mm)

➀

Line height is for multiple line messages. If a one line message is received, line height is 4.8 inches (121.9 mm).

➁

Only a 4 line Dataliner can send out line number 3.

➂

Message packet is ignored.

➃

A line number of 30 indicates that the host is requesting that the text be displayed on both lines 1 and 2. The first

20 characters (small display) or 40 characters (large display) will be displayed on line 1, and the second 20 characters (small display) or 40 characters (large display) on line 2. If more than 40 characters (small display) or

80 characters (large display) are received, characters (41-80) or (81 to 160) will be displayed on the second screen and characters (81-120) or (161 to 240) will be displayed on the third screen, etc.

The baud rate must be set to match the baud rate of the host device.

The DL50 will display the selected baud rate as one of its initial power up prompts.

Baud Rate

Baud Rate Switches

Switch Number S2-4

300

1200

9600

19200

OFF

Switch Number S2-5

OFF

Note: When operating the DL50 as a slave to a DL20 or DL40, 9600 Baud is recommended.

3–5

Chapter 3

Configuring the DL50

Selecting Operating Mode

Slave mode is the standard operating mode for the DL50. If the DL50 is not operating properly, the Diagnostic mode will help isolate the problem (refer to Chapter 8).

Mode

Slave Mode

Operating Mode Switches

Switch Number S2-6

OFF

Diagnostics Mode

Reserved

OFF

Switch Number S2-7

OFF

Enabling/Disabling

Checksum

This switch enables and disables the checksum for duplex protocol messages.

Duplex messages to the DL50 require a checksum field. However with the checksum disabled, the contents of the checksum field are ignored.

Checksum

Enabled

Duplex Checksum Switch

Switch Number S2-8

Disabled OFF

Selecting Display Type

This switch is factory set for the type of display hardware being used. Do not change the setting of this switch. The chart below is for reference only.

Display Type Switches

Type

Catalog No. 2706-F11J

Catalog No. 2706-F21J

Switch Number S3-1

OFF

Catalog No. 2706-F11JC

Catalog No. 2706-F21JC

Switch Number S3-2

OFF

Selecting Default

Display Color

This switch applies to the tri-color displays (Catalog No. 2706-FllJC,

-F21JC). These switches have no affect on the single color displays. If a message does not specify display colors, the default color is used.

Display Type Switches

Default Color Switch Number S3-3

Red

Green

Amber

Reserved (Red)

OFF

Switch Number S3-4

OFF

3–6

DL50 Reset

Chapter 3

Configuring the DL50

The DL50 loads DIP switch settings on power-up and when the RESET button is pressed. The RESET switch is located on the left side of the processor board (refer to Figure 3.3).

Figure 3.3

Reset Switch

RESET

Reset

Switch

Press this momentary switch to begin the reset. The DL50 will enter the self-test mode and display power-up status information as shown in

Figure 3.4.

3–7

Chapter 3

Configuring the DL50

Figure 3.4

DL50 Self-Test Sequence

Slave Address

SLAVE ADDR: XXXX

SUB-ADDR: XXXX

Protocol

Text Mode

Self Test

Baud Rate

Protocol: DUPLEX

Checksum: ON

ON, OFF

SELF TEST: PASS

Baud Rate: XXXXX

Simplex or

Duplex

Mode

300, 1200, 9600, 19200

Protocol: SIMPLEX

Mode: Small Text

Small Text, Large Text

Auto-Select

DL50 Type

Firmware Version

DL50 F11JC TRI-COLOR

Firmware Ver: X.XX

F11J, F21J RED

F11JC, F21JC TRI-COLOR

Left Side LEDs

Illuminated

➀

Right Side LEDs

Illuminated

➀

Diagonal Line

Scrolls

Right to Left

➁

➀

On tri-color versions of the DL50, the LEDs on the left and right sides are momentarily illuminated in red, green and amber.

➁

On tri-color versions of the DL50, red, green, and amber diagonal lines move simultaneously across the screen from right to left.

3–8

Chapter Objectives

Mounting Dimensions

Installing the DL50

A–B

Chapter

This chapter describes how to mount the DL50. Instructions are also provided on connecting the DL50 to communications lines and power source.

Figure 4.1 shows the mounting dimensions of the displays.

Figure 4.1

Mounting Dimensions

3/4 inches

(19 mm)

13/16 inches

(21.0 mm)

24 3/4 inches

(629 mm)

19 3/16 inches

(487 mm)

19 3/16 inches

(487 mm)

Catalog No. 2706-F11J, -F11JC

40.4 inches

(1026.2 mm)

37 1/8 inches

(943 mm)

24 3/4 inches

(629 mm)

Catalog No 2706-F21J, -F21JC

76.0 inches

(1930.4 mm)

24 3/4 inches

(629 mm)

10 11/16 inches

(271 mm)

10 11/16 inches

(271 mm)

4–1

Chapter 4

Installing the DL50

Mounting Methods

Surface Mounting

There are four methods of mounting the displays

•

Flush surface mount using the angle brackets supplied with the DL50.

•

Surface mount using optional adjustable brackets (Catalog No. 2706-NJ3)

•

Back-to-Back using adjustable brackets (Catalog No. 2706-NJ3).

•

Chain suspended (individually or back-to-back)

ATTENTION:

The displays are heavy. Proper installation techniques are necessary to avoid injury from a falling display. Depending upon the display and type of installation, two or more people are required to install a display. Make sure the display is installed on a structure able to accommodate the weight of the display.

Catalog No. 2706-F11J, -F11JC: 40 pounds (18 kilograms)

Catalog No. 2706-F21J, -F21JC: 75 pounds (34 kilograms)

There are two methods of mounting the display on a vertical surface such as a wall:

•

Directly mount the display to the wall using the angle brackets that are factory-installed before shipment. See Figure 4.2.

•

Use the optional adjustable brackets (Catalog No. 2706-NJ3). See

Figure 4.3.

ATTENTION:

Mount the display only to concrete walls or steel/wood beams. Do not mount the display on plaster or other soft material walls. Failure to follow this warning could result in personal injury or damage to the display.

The two flush wall-mount angle brackets (shipped pre-installed) may be removed and attached to the wall, then the DL50 can be mounted on them.

ATTENTION:

All angle bracket bolts must be torqued to 53-61 in.-lbs.

4–2

Chapter 4

Installing the DL50

Wall Mounting- Using Angle Brackets

Mount the DL50 directly to a wall using screws and wall anchors as shown in Figure 4.2.

Figure 4.2

Using the Wall-Mounting Angle Brackets Provided on the Display

Wall Anchor

Bolt

Screw

ÁÁÁÁ

ÉÉ ÁÁÁÁ

ÁÁÁÁ

DL50

ÁÁÁÁ

ÉÉ

ÁÁÁÁ

4–3

Chapter 4

Installing the DL50

Wall Mounting- Using Adjustable Brackets (Catalog No. 2706-NJ3)

Mount the DL50 to a wall using Adjustable Brackets (Catalog No.

2706-NJ3) as shown in Figure 4.3.

Note: Catalog No. 2706-NJ3 contains 2 pairs of brackets. You will need 2 pairs of brackets to mount Catalog No. 2706-F11J, -F11JC and 4 pairs of brackets to mount Catalog No. 2706-F21J, -F21JC.

Figure 4.3

Wall Mounting With Adjustable Brackets

Mounting Bracket

(Catalog No. 2706-NJ3)

DL50

Wall Anchor

ÉÉ Ê

Screw

ÁÁÁÁÁ

ÉÉÉ

ÁÁÁÁÁ

ÉÉ Ê

ÁÁÁÁÁ

Pivot Bolt

ÁÁÁÁÁ

Angle Adjustment Pin

ÁÁÁÁÁ

Screw, Lockwasher, Nut

ÁÁÁÁÁ

ÉÉÉ

ÁÁÁÁÁ

To adjust the viewing angle:

1) Support DL50 and remove Angle Adjustment Pin (see Figure 4.3)

2) Position DL50 at the proper angle.

3) Align bracket holes and re-insert Angle Adjustment Pin.

4–4

Chain Suspension

Chapter 4

Installing the DL50

The DL50 can be suspended from a pair of chains. Each chain must be capable of supporting:

400 pounds (182 kilograms) for Catalog No. 2706-F11J, -F11JC

750 pounds (341 kilograms) for Catalog No. 2706-F21J, -F21JC

ATTENTION: Make sure the supporting chain meets the minimum specifications listed above. Failure to follow this warning could result in damage to the display and personal injury.

Figure 4.4

Chain Suspension

Chain Must Be Able To Support:

400 pounds (182 kg) when hanging

Catalog No. 2706-F11J, -F11JC Displays

750 pounds (341 kg) when hanging

Catalog No. 2706-F21J, -F21JC Displays

Adjust Length of This Chain

To Change Viewing Angle

DL50

Angle Mounting Bracket

Note: The angle mounting bracket may be removed for chain-suspended installations.

4–5

4–6

Chapter 4

Installing the DL50

Back to Back Mounting

Mount two DL50 displays back-to-back with or without mounting brackets

(Catalog No. 2706-NJ3). These mounting methods are illustrated in

Figure 4.5 and Figure 4.6. The chains attached to each display must be able to support:

400 pounds (182 kilograms) for Catalog No. 2706-F11J, -F11JC

750 pounds (341 kilograms) for Catalog No. 2706-F21J, -F21JC

The chain supporting both displays must be able to support:

800 pounds (364 kilograms) for two Catalog No. 2706-F11J, -F11JC displays

1500 pounds (682 kilograms) for two Catalog No. 2706-F21J, -F21JC displays

ATTENTION: Make sure the supporting chains meet the minimum specifications listed above. Failure to follow this warning could result in damage to the display and personal injury.

Chapter 4

Installing the DL50

Figure 4.5

Back to Back Mounting Without Adjustable Brackets

Chain Must Be Able To Support

800 pounds (364 kg) when hanging two

Catalog No. 2706-F11J, -F11JC Displays

1500 pounds (682 kg) when hanging two

Catalog No. 2706-F21J, -F21JC Displays

Chains Must Be Able To Support:

400 pounds (182 kg) when hanging two

Catalog No. 2706-F11J, -F11JC Displays

750 pounds (341 kg) when hanging two

Catalog No. 2706-F21J, -F21JC Displays

É Ê

DL50

Ê É

DL50

4–7

Chapter 4

Installing the DL50

Figure 4.6

Back to Back Mounting With Adjustable Brackets

Chain Must Be Able To Support

800 pounds (364 kg) when hanging two

Catalog No. 2706-F11J, -F11JC Displays

1500 pounds (682 kg) when hanging two

Catalog No. 2706-F21J, F21JC Displays

Chains Must Be Able To Support:

400 pounds (182 kg) when hanging two

Catalog No. 2706-F11J, -F11JC Displays

750 pounds (341 kg) when hanging two

Catalog No. 2706-F21J, -F21JC Displays

ÉÉ

DL50

Angle

Adjustment Pin

ÉÉ Ê É Ê

Adjustable Brackets

(Catalog No. 2706-NJ3)

DL50

Note: Catalog No. 2706-NJ3 contains 2 pairs of brackets. You will need 2 pairs of brackets to mount Catalog No. 2706-F11J, -F11JC and 4 pairs of brackets to mount Catalog No. 2706-F21J, -F21JC.

To adjust the viewing angle:

1) Support DL50 and remove Angle Adjustment Pins (see Figure 4.6).

2) Position DL50 at the proper angle.

3) Align bracket holes and re-insert Angle Adjustment Pins.

4–8

Wiring Recommendations

European Union Directive

Compliance

Chapter 4

Installing the DL50

Careful wire routing helps cut down on electrical noise. To reduce electrical noise, the DL50 should be connected to its own branch circuit. (See the next section for power requirements in the European Union or EFTA regions.)The input power source should be protected by a fuse or circuit breaker rated at no more than 15 Amps. Route incoming power to the DL50 by a separate path from the communication cables.

ATTENTION: Do not run signal wiring and power wiring in

the same conduit!

Where power and communications lines must cross, they should cross at right angles. Communications lines can be installed in the same conduit as low level DC I/O lines (less than 10 Volts).

All communications lines should be shielded. The shield should be connected to ground only at the transmitting device.

If this product is installed within the European Union or EFTA regions, the following regulations apply:

EMC Directive

This apparatus is tested to meet Council Directive

89/336/ECElectromagnetic Compatibility (EMC) using the following standards

•

EN 50081-2

EMC – Generic Emission Standard, Part 2 Industrial Environment

•

EN 50082-2

EMC – Generic Immunity Standard, Part 2, Industrial Environment

LVD Directive

This apparatus is tested to meet Council Directive 73/23/EEC with amendments, including 93/68/EEC Low Voltage (LVD) using the following standard:

•

EN 60950 Safety of Information Technology Equipment

Intended Use of Product

The products described in this manual are intended for use in an industrial environment as defined in Appendix H.

4–9

Chapter 4

Installing the DL50

Grounding

Recommendations

Connecting Power

Grounding is an important safety measure in electrical installations.

Grounding also helps eliminate the effects of noise due to Electromagnetic

Interference (EMI).

An authoritative source on grounding requirements is the National Electrical

Code published by the National Fire Protection Association of Boston,

Massachusetts. Article 250 of the Code describes the types and sizes of wire conductors and safe methods of grounding electrical equipment and components.

ATTENTION: To avoid risk of shock, Earth Ground must be connected to the display at all times.

Connect power line to the DL50 terminal blocks as shown in Figure 4.7. The

DL50 will accept 95-120 or 190-240 Volts AC, 50-60 Hz input power.

Figure 4.7

Electrical Power Connections

L2N L1

L1

L2

E.GND

NO

NC

COM

Processor Board

PE (Protective Earth)

Connect power line ground to this terminal.

Factory Installed

Ground Wire

(Green/Yellow)

ATTENTION: Do not apply power to the display until all electrical connections, including communications lines, have been connected.

ATTENTION: Terminal 3 (Ground Terminal) must be connected to a reliable low impedance earth ground to protect the display against electrical noise. The ground will also help protect personnel from electrical shock if a voltage is shorted to the enclosure.

4–10

Annunciation Relay

Connections

Chapter 4

Installing the DL50

1. Connect ground wire to the chassis grounding terminal. Then verify that the factory installed earth ground wire is connected between the chassis

PE (Protective Earth) terminal and the earth ground terminal on the power input connector.

Note: If the power lines enter the left side of the display, route the AC lines through the cable guides on the upper part of the display. Route the communication lines through the cable guides on the bottom half of the display.

2. Connect input power lines, L1 and L2N. Do not apply power until all connections have been made

3. Connect communications lines as described in the following sections.

4. Apply power and verify power-up messages as shown in Chapter 3.

Figure 4.8 shows a typical connection between the annunciation relay and an annunciator.

ATTENTION: Do not use the relay for control purposes. Use relay for annunciator only. Failure to follow this warning could result in unexpected switching of control circuits.

ATTENTION: When power is removed, the annunciator will be energized if the normally closed outputs are used.

Figure 4.8

Annunciation Relay Connections (Normally Open)

NO-

DL50

RELAY TERMINALS

NC-

COM-

RELAY

NO = Normally Open

NC = Normally Closed

COM = Common

Relay is rated for:

3A @ 240V AC resistive load

3A @ 30V DC resistive load

ALARM

4–11

Chapter 4

Installing the DL50

RS-232 Connections

The RS-232 interface allows connection of a single DL50 display, with a maximum recommended cable length of 50 feet

Figure 4.9 shows the location of the DL50’s RS-232 port terminals. The terminals are labeled:

RS-232 Connection Terminals

Terminal Number* Label

GND

* Pin #1 is on top.

Definition

Transmit Line

Receive Line

Signal Ground

Figure 4.9

RS-232 Terminal Location

RESET

T (Terminal #1)

R (Terminal #2)

G (Terminal #3)

4–12

Chapter 4

Installing the DL50

Figure 4.10 shows a typical connection between a host device RS-232 port and the DL50 display.

The DL50 display is considered a “DTE” (Data Terminal Equipment) device.

The connection diagram assumes that the RS-232 port of the host device is also a “DTE” type, as most are. If instead it is a “DCE” (Data

Communications Equipment) type, you should interchange the wires on pins 2 and 3.

We recommend that you connect the shield at the one end only, as shown.

Note: If noise problems occur between a DL20 master display and a DL50 display when RS-232 communications are used, we recommend that you connect the shield of the communication cable to chassis ground at both ends. However, the earth ground for each device must be at the same potential.

Figure 4.10

RS-232 Connections

T

DL50

RS-232 TERMINALS

RS-232 TxD (Transmit)

RS-232 RxD (Receive)

R

Ground

G

Cable, Belden 9842

TYPICAL HOST DEVICE

(25-pin) (DTE)

Equipment Ground

Transmit

Receive

Signal Common

Note: Some devices require that certain hardware handshaking lines be asserted.

This may require a jumper between the CTS and RTS terminals. Refer to the applicable product literature.

4–13

Chapter 4

Installing the DL50

RS-485 Connections

The RS-485 interface has these advantages over the RS-232

•

Improved noise immunity.

•

DL50 displays can be a distance of up to 4000 feet (1200 m) from the host device.

•

Up to 32 devices can be connected directly to the RS-485 port of the host controller. Up to 100 DL50 displays can be addressed when line drivers are used.

Figure 4.11 shows the location of the DL50’s RS-485 port terminals. The terminals are labeled:

Label

RS-485 Connection Terminals

Function

E. GND

SHLD

COM

TERM

Definition

Earth Ground

Shield

Common

RS-485 + (B)

RS-485 - (A)

Termination

Figure 4.11

RS-485 Terminal Location

RESET

E. GND (Terminal #1)

SHLD (Terminal #2)

COM (Terminal #3)

+ (Terminal #4)

- (Terminal #5)

TERM (Terminal #6)

4–14

Chapter 4

Installing the DL50

Figure 4.12 shows a typical connection between a host device RSĆ485 port and

DL50 displays. We recommend that you use Belden 9842 cable.

Note that pin or terminal numbers are not shown for the host device. This is because the terminal numbers vary for different products. For actual pin numbers, refer to the appropriate host device product literature.

We recommend that you connect the shield to ground at one end only, as shown.

Shield

HOST

TERMINALS

Common

RS-485 (+)

RS-485 (-)

DL50

RS-485

TERMINALS

Figure 4.12

RS-485 Connections

DL50

RS-485

TERMINALS

SHLD

COM

–

SHLD

COM

–

6 6

DL50

RS-485

TERMINALS

Note: Some devices require that certain hardware handshaking lines be asserted.

Refer to the applicable product literature.

Shield

Grounding

Connect shield (terminal #2) to ground

(terminal #1) at any one node (only) on

RS-485 Network

E. GND

SHLD

COM

–

TERM

SHLD

COM

–

Other

DL50s

Network

Termination

Terminate the network at the last device.

Terminate a DL50 by connecting RS-485 +

(terminal #4) to

TERM (terminal #6).

–

E. GND

SHLD

COM

TERM

Note: RS-232 devices such as personal computers can communicate through the DL50 RS-485 port using an RS-232

RS-485 converter such as a Black Box

LD-485A-MP.

RS-232

BLACK BOX

LD485A-MP

RS-232

RS-485

DL50 DISPLAY

To Other DL50 Displays

DL50 DISPLAY

4–15

Chapter 4

Installing the DL50

Connection to DL20/DL40

“Master” Displays

As previously described, a DL50 display can be connected to the RS-232 or

RS-422 port of a DL20 display or the RS-485 port of a DL40 display

(Master). When this type of configuration is used, all messages are stored in the Master DL20/DL40 displays. All the host controller is required to do is trigger a particular message stored in the Master DL20/DL40 display.

Up to 32 DL50 slave displays can be connected (without line drivers) to the

RS-485 port of the DL40 or RS-422 port of the DL20. When particular messages are created, they can be assigned an attribute which designates that messages be displayed on a particularly addressed slave DL50 display, all slave DL50 displays, or just the host DL40/DL20 display. Addresses are assigned to Slave DL50 displays by setting DIP Switches as described in

Chapter 3 of this manual.

The DL40 (Firmware V. 3.00 or later) supports control of the DL50 relay, and control of the display color in tri-color displays, on a per-message basis.

These controllable DL50 features are accessed and configured using the message attribute selections within the DL40 Offline Programmer software

(2706-ND1 Series D or later).

Note: Whatever is sent out of the DL20’s RS-422 port is also sent out the

RS-232 port, and vice versa.

For more information on DL20 displays (Master) refer to DL20 display

User’s Manual Publication 2706-801.

Figure 4.13 illustrates possible DL20 and DL40 Master/Slave configurations:

Figure 4.13

DL20/DL40 Master/Slave Configurations

DL50 DISPLAY

Host Programmable Controller or Computer

1771 Remote I/O or

Parallel I/O

DL40 DISPLAY

MASTER

RS-485

All Messages

Are Stored Here

To Other DL50 Displays

DL50 DISPLAY

Host Programmable Controller or Computer

Parallel I/O Interface

DL20 DISPLAY

MASTER

RS-232

RS-422

All Messages

Are Stored Here

RS-485 (RxD)

DL50 DISPLAY

To Other DL50 Displays

RS-485 (RxD)

DL50 DISPLAY DL50 DISPLAY

4–16

Chapter 4

Installing the DL50

Note: If noise problems occur between a DL20 master display and a slave

DL50 display (RS-232), we recommend that you connect the shield of the communication cable to chassis ground at both ends. The earth ground for each device must be the same potential to insure that ground currents do not flow.

Connect the slaves to the master using Belden 9842 cable. Figure 4.14 shows the DL40 to DL50 wiring connections.

Host Programmable Controller or Computer

1771 Remote I/O or

Parallel I/O

DL40 MASTER

* Refer to Figure 4.12 for shield grounding and line termination information.

Figure 4.14

RS-485 DL40 / RS-422 DL20 Master to DL50 Slave(s) Wiring Connections

SHLD

COM

–

DL50

RS-485

TERMINALS

SHLD

COM

–

DL50

RS-485

TERMINALS

4000 feet (1200 meters) maximum

SHLD

COM

–

Other

DL50s

Host Programmable Controller or Computer

Parallel I/O Interface

DL20 MASTER

RS-422 TERMINALS

Ground

RS-422 (+)

RS-422 (-)

–

DL50

RS-485

TERMINALS

2 SHLD

3 COM

–

DL50

RS-485

TERMINALS

SHLD

COM

–

4000 feet (1200 meters) maximum

Other

DL50s

4–17

Chapter 4

Installing the DL50

Connection as Slave to

DL20 “Master” RS-232 Port

It is also possible to use the RS-232 output of the DL20 to connect to one

DL50 slave, however the distance limitation is 50 feet. These connections are shown in Figure 4.15.

Figure 4.15

RS-232 DL20 Master to DL50 Slave Wiring Connections

Host Programmable Controller or Computer

DL20 MASTER

Parallel I/O Interface

Signal

Ground

RS-232 (TxD)

RS-232 (RxD)

DL50

RS-232 TERMINALS

Shield

DL50

RS-485

TERMINALS

50 feet (15 meters) maximum

4–18

Chapter 4

Installing the DL50

Connection to Personal

Computers

The DL50 display may be connected to personal computers through an

RS-232 port. Either Simplex or Duplex protocol may be used in applications with a personal computer as host.

•

For single-point connections of 50 feet or less, the DL50 RS-232 port may be connected directly to the personal computer RS-232 port. See

Figure 4.16.

Figure 4.16

Personal Computer to DL50 RS-232 Port

T

DL50

RS-232 TERMINALS

RS-232 TxD (Transmit)

RS-232 RxD (Receive)

R

G

Signal Ground

Computer

RS-232 port

RS-232 TxD (Transmit)

RS-232 RxD (Receive)

DB-9 Connector

•

For installations greater than 50 feet, or for multi-drop networks containing multiple DL50 displays, the personal computer can be connected to a DL50 RS-485 network through a multi-point RS-232 to

RS-485 converter. See Figure 4.17.

A multi-point converter is used for:

• single DL50 installations with a cable length over 50 feet, or

• multi-drop network containing multiple DL50 displays.

Any RS-232 host (such as a personal computer) can be connected to a DL50

RS-485 network through a multi-point RS-232 to RS-485 converter such as

Black Box Corporation’s Model LD485A-MP.

Note: The output of LD485A-MP is a half-duplex RS-485 network that will support up to 32 multi-dropped DL50 displays. Up to 100 DL50 displays can be connected when line drivers are installed.

4–19

Chapter 4

Installing the DL50

EGND

DL50

RS-485

TERMINALS

SHLD

COM

–

TERM

Figure 4.17

Personal Computer to DL50 RS-485 Port(s)

NOTE: CONNECT SHIELD TO EGND AT

ONE NODE ONLY

Shield

Black Box LD485A-MP

RxB

RxA

TxB

TxA

RS-485

DB-25

RS-232

Signal Ground

Transmit

Receive

Note: Allen-Bradley 2706-NC15 cable will connect directly from a personal computer serial port (male DB-9) to the Black Box

LD485A-MP.

Computer

RS-232 port

DB-9 Connector

Black Box LD485A-MP Configuration

Configure the Black Box (LD485A-MP) converter as follows:

1. Remove cover and set the converter as a DCE device using the XW1A jumper. This is a 16-pin DIP jumper.

2. Short TxA and RxA on TB1 of the converter.

3. Short TxB and RxB on TB1 of the converter.

4. Set jumper W8 to half-duplex operation.

5. Set jumper W9 for a 50 millisecond RTS/CTS delay time.

6. Set jumper W15 to B-C for data enabled operation.

7. Set jumper W16 to A-B for 5 millisecond turnaround delay.

8. Set jumper W17 to A for 1 millisecond driver delay.

9. Set jumper W18 to A-B for DTR enabled driver.

10.Set switch S2 to the unterminated position.

11. Replace cover.

12.Set Normal/Loopback switch on front panel to Normal.

ATTENTION: The two jumpers to short TxA to RxA and TxB to RxB are essential for converter function. See steps 2 and 3 above, and Figure 4.17.

4–20

Connection to

Allen-Bradley

Programmable Controllers

Chapter 4

Installing the DL50

Most Allen-Bradley Programmable Logic Controllers (PLCs) provide a variety of methods to interface RS-232 or RS-485 devices. They include the:

Mini PLC-2

Mini PLC-2/15, -2/05, etc.

PLC-2/20 (1772-LP1, -LP2)

PLC-2/30 (1772-LP3)

PLC-3

PLC-3/10

PLC-5 Family

SLC 500 Family

The most common means of providing serial interfaces for the above

Programmable Controllers include the following optional modules:

BASIC Module- Catalog No. 1771-DB

(All PLC-5 Programmable Controllers)

Peripheral Communications Module- Catalog No. 1771-GA

(PLC-3 Family only)

ASCII I/O Module- Catalog No. 1771-DA

(All PLC-5 Programmable Controllers)

Flexible Interface Module- Catalog No. 2760-RB

(All PLC-5 Programmable Controllers)

SLC 500 BASIC Module- Catalog No. 1746-BAS

(All SLC 500 Small Logic Controllers)

4–21

Chapter 4

Installing the DL50

BASIC Module

Catalog No. 1771-DB

Catalog No. 1746-BAS

The Allen-Bradley BASIC Modules (Catalog No. 1771-DB and Catalog No.

1746-BAS) provide a cost-effective and efficient serial interface to

Allen-Bradley PLC and SLC controllers. The BASIC Modules store all messages in battery-backed RAM or EPROM. The modules can be programmed to transmit these messages along with status or variable data from the programmable controller.

The BASIC Modules support both RS-232 and RS-422 applications. For more information on the BASIC Modules, refer to the user’s manuals.

Chapter 6 provides programming examples.

Figure 4.18 shows how to connect the RS-232 port of the DL50 to the

BASIC Modules.

Figure 4.18

RS-232 Connection to BASIC Module

DL50

RS-232 TERMINALS

Shield

1771-DB RS-232

PERIPHERAL PORT

Chassis / Shield

TxD Output

RxD Input

Signal Ground

DL50

RS-232 TERMINALS

T 1

DL50

RS-485

TERMINALS

Shield

1746-BAS

RS-232 PORT

RxD Input

TxD Output

Signal Ground

4–22

Chapter 4

Installing the DL50

Peripheral

Communications Module

Catalog No. 1771-GA

E. GND

DL50

RS-485

TERMINALS

SHLD

COM

–

TERM 6

The Peripheral Communications Module (Catalog No. 1775-GA) is only applicable to Allen-Bradley PLC-3 Family Programmable Controllers. The module plugs directly into the PLC-3 chassis. It has several serial ports and is capable of performing many unique tasks at one time for a

PLC-3 System. The Peripheral Communications Module supports RS-232 serial port specifications.

Figure 4.19 shows how to connect the RS-232 port of the DL50 to a

Peripheral Communications Module.

Note:

Using an RS-232 RS-485 converter such as the Black Box t

LD-485A-MP you can connect the Peripheral Communications Module to the RS-485 port of one or more DL50(s). See figure below.

Figure 4.19

RS-232 Connection to Peripheral Communications Module

DL50

RS-232 TERMINALS

Note: Connect shield to ground at one node only

BLACK BOX

LD-485A-MP

RxB

RxA

TxB

TxA

Consult Black Box instruction sheet for wiring connections.

Connections depend upon converter setup.

Shield

1771-GA

RS-232 PORT

Chassis / Shield

TxD Output

RxD Input

Signal Ground

1771-GA

RS-232 PORT

Chassis / Shield

TxD Output

RxD Input

Signal Ground

4–23

Chapter 4

Installing the DL50

ASCII I/O Module

Catalog No. 1771-DA

E. GND

DL50

RS-485

TERMINALS

SHLD

COM

–

TERM 6

The ASCII I/O Module (Catalog No. 1771-DA) provides a serial interface for almost all Allen-Bradley programmable controllers. It can be plugged into any slot of a standard 1771 local or remote I/O rack.

The ASCII I/O Module has no memory or programming language. All DL50 display messages would be stored in the programmable controller’s memory.

Figure 4.20 shows how to connect the RS-232 port of the DL50 to a ASCII

I/O Module.

Note: Using an RS-232 RS-485 converter such as the Black Box t

LD-485A-MP you can connect the ASCII I/O Module and the RS-485 port of one or more DL50(s). See figure below.

Figure 4.20

RS-232 Connection to an ASCII I/O Module

DL50

RS-232 TERMINALS

Note: Connect shield to ground at one node only

BLACK BOX

LD-485A-MP

RxB

RxA

TxB

TxA

Consult Black Box instruction sheet for wiring connections. Connections depend upon converter setup.

Shield

1771-DA

RS-232 PORT

Chassis / Shield

TxD Output

RxD Input

Signal Ground

1771-DA

RS-232 PORT

Chassis / Shield

TxD Output

RxD Input

Signal Ground

4–24

Chapter 4

Installing the DL50

Flexible Interface Module

Catalog No. 2760-RB

Use the Flexible Interface Module with either the Catalog No. 2760-SFC1 or

2760-SFC2 cartridge with Dumb Terminal (DT) protocol. Multidrop up to 31

DL50’s on each of the three communications ports on the module.

Figure 4.21 shows how to connect the RS-485 port of the DL50 to a Flexible

Interface Module RS-422 port.

Figure 4.21

RS-485 Connection to a Flexible Interface Module

FLEXIBLE

INTERFACE

MODULE

(RS-422)

Shield

Common

RS-485 (+)

RS-485 (–)

DL50

RS-485

TERMINALS

SHLD

COM

–

DL50

RS-485

TERMINALS

SHLD

COM

–

DL50

RS-485

TERMINALS

SHLD

COM

–

6 6

Other

DL50s

Flexible Interface Module

Network Termination

Terminate RS-422 network at

Flexible Interface Module.

Refer to User Manual.

Shield

Grounding

Connect shield (terminal #2) to ground (terminal #1) at any one node

(only) on RS-422 Network.

E. GND

SHLD

COM

–

TERM

Network

Termination

Terminate last DL50 by connecting

RS-422 + (terminal #4) to

TERM (terminal #6)

E. GND

SHLD

COM

–

TERM

4–25

A–B

Chapter

Serial Communications

Chapter Objectives

This chapter describes how to communicate with the DL50 using a simple

ASCII string format. The DL50 supports both simplex and duplex communications protocols. Each will be addressed in this chapter.

Protocols

Simplex Communications- In this protocol, the DL50 does not provide any responses to the master device. The DL50 receives message packets from the master device and uses this information to display text. Use this protocol when the commands are sent from Allen-Bradley Dataliner DL20 and DL40 message displays.

Duplex Communications- In this protocol, the DL50 provides a response to each command it receives. The response includes data checking bytes

(Checksum) and a handshake byte (ACK/NAK). The DL50 receives message packets from the master device, transmits data checksum/handshake bytes back to the master, and uses the message data to display text.

The Duplex Protocol section starts on page 5-8.

Host Device Compatibility

The DL50 can communicate with a wide range of host devices using either the Simplex or Duplex protocols. These protocols are selected through dipswitch configuration of the DL50 display. Table 5.A lists typical

Allen-Bradley products that can drive DL50 displays, together with the protocol(s) they can support.

Table 5.A

Host Device Compatibility with Simplex and Duplex Protocol Formats

Product Family

Dataliner Displays

Dataliner DL40 Message Displays

Dataliner DL20 Message Displays

MessageView

Displays

RS-485

RS-232 / RS-422

MessageView 2706-M1D1, -M1N1, -M1F1 RS-232

PLC 5

SLC500

Host Device

PLC 5 Family Programmable Controllers

BASIC Module (1771-DB)

ASCII I/O Module (1771-DA)

Flexible Interface Module (2760-RB)

SLC 5/03 Small Logic Controller

SLC 5/04 Small Logic Controller

BASIC Module (1746-BAS)

Host COM Port Simplex Duplex

Channel #0 RS-232

RS-232/RS-485

RS-232

RS–232/RS-422

Channel #0 RS-232

RS-232/RS-485

YES

5–1

Chapter 5

Serial Communications

Simplex Protocol

The simplex data packet consists of 6 data fields as shown below:

Field 1 Field 2

Optional Control

Byte

ASCII Text or

Special Control

Characters

Field 3

Optional

Display Mode

1 Byte 0-250 Bytes 1 Byte

Field 4

Slave Address

1 Byte

Field 5

Line Number

1 Byte

Field 6

Carriage Return

1 Byte

Note: Simplex protocol is compatible with Allen-Bradley DL20 and DL40 message displays.

Field 1: Optional Control Byte

This is an optional field which indicates whether the text is to be buffered or displayed when it is received. The following control characters are used:

Table 5.B

Control Byte Characters (Simplex)

Control Character

Ctrl-A

Ctrl-B

Ctrl-C

Decimal

Value

Function

Append the characters to buffer.

Append characters to buffer then display.

Clear display line(s).

Ctrl-L 12 Initialize DL50 for Bootstrap.

The ability to append characters to the display buffer (Ctrl-A) and to display the buffer contents (Ctrl-B) allows long message text to be sent using multiple data packets.

The command for initializing the Bootstrap Mode (Ctrl-L) is described in

Chapter 7.

If this control byte is not included in the message packet, the DL50 will default to displaying the text. All other values of the control character are ignored.

Field 2: ASCII Text

This field contains the ASCII characters and/or special ASCII control characters (up to 250) that are to be displayed by, or to control, the DL50.

If the Optional Display Mode byte is not sent, and the packet contains more text than can be displayed on one line of the display, the message will be truncated (unless message line number is 30, see Table 3.A).

5–2

Chapter 5

Serial Communications

Simplex Protocol (continued)

Field 3: Optional Display Mode

This optional field indicates how the message text is to be displayed. If this optional byte is not present, the Line Number (field 5) determines the display mode. The following control characters are used:

Table 5.C

Display Mode Control Characters

Control Character

Decimal

Value

1 Ctrl-A

Ctrl-B

Ctrl-C

Ctrl-D

Ctrl-E

Ctrl-H

Ctrl-I

Ctrl-K

Ctrl-L

Ctrl-N 14

Ctrl-O 15

➀

Refer to Appendix A for display descriptions.

Display Mode

➀

Hold

Flash

Scroll

Roll Up

Roll Down

Roll Right

Roll Left

Wipe Up

Wipe Down

Wipe Left

Wipe Right

5–3

Chapter 5

Serial Communications

Simplex Protocol (continued)

Field 3: Optional Display Mode (continued)

Special Control Characters

When operating in the slave mode, the DL50 will recognize the following special control characters:

•

Ctrl F [FLASH]

The Ctrl F (decimal 6) control character causes the DL50 to toggle between flashing and non-flashing characters. Text which is between two

Ctrl F characters will flash, all other characters will be non-flashing.

For Example:

Assume that the character ^ denotes a Ctrl-F. If the following message is sent:

This is a message with ^FLASHING TEXT^ along with non-flashing text.

•

Ctrl R [RESET]

The Ctrl R (decimal 18) control character causes the DL50 to clear all data in the message buffer, toggle the flashing message attribute to off, and reset the display color to the default specified by the dipswitch settings (see Figure 3.2). This control character does not affect a message being currently displayed.

Note: We recommend that the host device send a Ctrl-R (decimal 18) command to all slave displays when the system is powered up, and also each time before a message packet is sent to a specific slave address. This clears any data that might interfere with the new message.

•

Ctrl X [RED]

The Ctrl X (decimal 24) control character changes all subsequent characters to Red until another special control character is received or the end of the message occurs. After the end of the message, the default color is re-established. (Tri-color displays only.)

•

Ctrl Y [AMBER (YELLOW)]

The Ctrl Y (decimal 25) control character changes all subsequent characters to Amber until another special control character is received or the end of the message occurs. After the end of the message, the default color is re-established. (Tri-color displays only.)

•

Ctrl Z [GREEN]

The Ctrl Z (decimal 26) control character changes all subsequent characters to Green until another special control character is received or the end of the message occurs. After the end of the message, the default color is re-established. (Tri-color displays only.)

5–4

Chapter 5

Serial Communications

Simplex Protocol (continued)

Field 4: Slave Address

The slave address is a single byte field that can be any value from 1- 255, except for 6, 13,16, and 18. When connecting a DL50 to a DL20/DL40 master, the illegal decimal addresses are: 0, 4, 6, 7, 13, 16, 18, 20, 22, 43, 45,

48-57, and 128-255. A display with an address of 127 will accept all message packets regardless of the address on the packet. In addition any message packet with an address of 127 will be received by all displays.

Field 5: Line Number

When the optional bytes (field 1 and 3) are not present, the line number field specifies on which line(s) the message is displayed. The line number function depends upon the size of the display (10 or 20 character display) and the line height (selected by DIP switches). Table 5.D shows the effect of line number selection on Catalog No. 2706-F11J, -F11JC and Table 5.E shows the effect of line number selection on Catalog No. 2706-F21J, -F21JC.

Note: Catalog No. 2706-F11J, -F11JC can display one line of ten 4.8 inch characters or two lines of twenty 2.1 inch characters. Catalog No.

2706-F21J, -F21JC can display one line of twenty 4.8 inch characters or two

lines of forty 2.1 inch characters.

Table 5.D

Line Number Effect On Catalog No. 2706-F11J, -F11JC

Display Mode

2.1 Inch Text

4.8 Inch Text

Line

Number

Field 5

(Decimal)

Text Displayed On Line

Number:

Line Ignored

1 and 2

➀

➁

Line Ignored

➁

Character Size

(Inches)

2.1

Not Applicable

2.1

4.8

Not Applicable

4.8

Auto-Select 3

➁

Line Ignored

1 and 2

➀

2.1

4.8

Not Applicable

2.1

➀

If the line number is 30, this means that the host is requesting the text to be displayed on both lines 1 and 2. The first 20 characters are displayed on line 1 and the second 20 characters on line 2. If more than 40 characters are received, characters 41-80 will be displayed on the second screen, characters 81-120 on the third screen, etc.

➁

If more than 10 characters are sent, the DL50 will Roll the character text from right to left.

5–5

Chapter 5

Serial Communications

Simplex Protocol (continued)

Table 5.E

Line Number Effect On Catalog No. 2706-F21J, -F21JC

Display Mode

2.1 Inch Text

4.8 Inch Text

Line

Number

Field 5

(Decimal)

Text Displayed On Line

Number:

1 (1st 20 Characters)

1 (2nd 20 Characters)

2 (1st 20 Characters)

2 (2nd 20 Characters)

1 and 2

➀

➁

Line Ignored

➁

Character Size

(Inches)

2.1

4.8

Not Applicable

4.8

Auto-Select

➁

Line Ignored

1 and 2

➀

2.1

4.8 (20 Characters)

Not Applicable

2.1

➀

If the line number is 30, this means that the host is requesting the text to be displayed on both lines 1 and 2. The first 40 characters are displayed on line 1 and the second 40 characters on line 2. If more than 40 characters are received, characters 81-160 will be displayed on the second screen, characters 161-240 on the third screen, etc.

➁

If more than 20 characters are sent, the DL50 will display the message in successive 20-character sections.

A line number of 48 will energize the annunciation relay. A line number of

49 will de-energize the annunciation relay.

ATTENTION:

Use relay for annunciator only. Do not use relay contacts for purposes of control. Failure to follow this warning may result in unexpected equipment operation.

Field 6: Carriage Return

The Carriage Return (decimal 13) indicates the end of a message packet.

5–6

Chapter 5

Serial Communications

Simplex Protocol (continued)

Clearing Lines of Text

•

You can either send a message packet with a control byte (field 1) that has a Ctrl-C (decimal 3) value, or

•

You can send a message packet with the following format:

Field 1 Field 2 Field 3

Slave Address Line Number Carriage Return

1 Byte 1 Byte 1 Byte

The line number in the message packet specifies which line(s) to clear:

ASCII Character

Ctrl-A

Ctrl-B

Decimal Value

Function

Clear line 1.

Clear line 2.

Clear all lines.

Performance

The DL50 display requires a time delay between successive packets sent from the host (master) to the DL50 display. This delay is referred to as the

“inter-packet delay”. It is required so the DL50 can process the received data properly before the next packet is received.

These delays need to be programmed into the host system only if messages will be sent in rapid succession to the same display. The time delay interval required is a function of the display type, character size, baud rate, and packet length. Table 5.F lists the required delay times for DL50 displays operating in Simplex Protocol mode, using the worst case scenario.

Table 5.F

Simplex Protocol Inter-Packet Delay Requirements

19200 Baud with Large Characters (worst case)

Display Type

2706-F11J

2706-F11JC

2706-F21J

2706-F21JC

Packet Length

250 characters

Delay (milliseconds)

300 mS

350 mS

300 mS

350 mS

Note: Typical inter-packet delay requirements for most applications range from 80 to 250 milliseconds.

5–7

Chapter 5

Serial Communications

Duplex Protocol

Duplex Communications- In this Protocol, the DL50 provides a response to each command it receives. The response includes data checking bytes

Note: Use Simplex Protocol when the commands are sent from

Allen-Bradley Dataliner DL20 and DL40 message displays, or from other master devices that do not support duplex communication. The Simplex

Protocol section starts on page 5-2.

Field 1

Control

Byte

1 Byte

Field 2 Field 3

ASCII Text or

Special Control

Characters

Slave Address

Field 4

Line Number

Field 5

Carriage Return

Field 6

Message

Attributes

1-250 Bytes 1 Byte 1 Byte 1 Byte 3 Bytes

Field 7

Checksum

(Dipswitch

Enabled)

3 Bytes

Field 1: Control Byte

This field indicates whether the text is to be buffered or displayed when it is received. The following control characters are used:

Table 5.G

Control Characters in Duplex Protocol

Control Character

Ctrl-A

Ctrl-B

Ctrl-C

Ctrl-D

Decimal

Value

Function

Append the characters to buffer. Field 6 is not sent.

Append characters to buffer then display.

Clear display line(s). Field 2 is not sent.

Abandon running message. Reset buffer.

Ctrl-L 12 Initialize DL50 for Bootstrap.

Note:

If the control byte is Ctrl-A (decimal 1), the Message Attributes (field 6) is not sent because this packet does not cause the DL50 to display text. When

Ctrl-B (decimal 2) is sent with a message attributes field, the message is sent to the message buffer and then displayed. Text which was previously sent to the buffer using Ctrl-A message packets is displayed with the message attributes contained in the Ctrl-B message packet.

A control byte containing Ctrl-D (decimal 4) provides a means of interrupting the DL50 display. This provides the host with the ability to display a messages with a higher priority than the message currently being displayed.

5–8

Chapter 5

Serial Communications

Duplex Protocol (continued)

A control byte containing Ctrl-L (decimal 12) indicates that the DL50 is being initialized for the bootstrap mode. In this mode the DL50 will be idle, waiting for the host to transmit a firmware update (refer to Chapter 7).

Field 2: ASCII Text or Special Control Characters

This field contains the ASCII characters (up to250) that are tobe displayed by the DL50 or sent to the message buffer. The special control characters are described on page 5Ć11.

Field 3: Slave Address

The slave address is a single byte field that can be any value from 1 to 255, except for addresses

6, 13, 16, and 18.

A display with an address of 255 will accept all message packets regardless of the address. In addition, any message packet with an address of 255 will be received by all displays.

Note: Displays and messages with an address of 255 will not have a response packet. This is to prevent multiple devices from trying to transmit simultaneously on a half-duplex RS-485 network.

Field 4: Line Number

The line number performs one of two functions.

•

Indicates where text is displayed.

•

Indicates which lines to clear. Refer to the following table:

Line Number

Field 4

(Decimal)

Function

Clear line 1 or display text on line 1.

Clear line 2 or display text on line 2.

Reserved for future use.

Clear all lines.

Note: The line number and other attributes as defined in the Message

Attributes byte (field 6) determine how the message is displayed.

Field 5: Carriage Return

This is a Ctrl M (decimal 13) character.

5–9

Chapter 5

Serial Communications

Duplex Protocol (continued)

Field 6: Message Attributes

This three byte field specifies how a message is displayed. The three bytes specify:

Byte 1 Byte 2

Display Mode

Display Speed

Text Height

Relay Control

Byte 3

Reserved

Display Mode / Speed The first byte of the Message Attributes field specifies display mode / display speed. The first five bits indicate display mode and the last three bits indicate the display speed.

Bit

Always

Set to 1

Display Speed

Set Bits 5 and 6 using Table 5.D

Table 5.H

Bits 0 through 4 of the Message Attribute 1st Byte

Display Mode

Set Bits 0 through 4 using Table 5.H

Function

➀

Hold

Roll Up

Roll Down

Roll Left

Roll Right

Roll In

Roll Out

Rotate

Wipe Up

Wipe Down

Wipe Left

Wipe Right

Wipe In

Wipe Out

Twinkle

Sparkle

Snow

Bits 4

0 0 0 0 0

0 0 0 0 1

0 0 0 1 0

0 0 0 1 1

0 0 1 0 0

0 0 1 0 1

0 0 1 1 0

0 0 1 1 1

0 1 0 0 0

0 1 0 0 1

0 1 0 1 0

0 1 0 1 1

0 1 1 0 0

0 1 1 0 1

0 1 1 1 0

0 1 1 1 1

1 0 0 0 0

Interlock

Switch

Slide Across

Spray On

Starburst On

Scroll

Reserved

1 0 0 0 1

1 0 0 1 0

1 0 0 1 1

1 0 1 0 0

1 0 1 0 1

1 0 1 1 0

1 0 1 1 1

1 1 1 1

➀

Refer to Appendix A for descriptions of these attributes.

➁

Add decimal values for all bits within a byte to determine value of the entire byte.

Decimal Value

➁

5–10

Chapter 5

Serial Communications

Duplex Protocol (continued)

Field 6: Message Attributes (continued)

Special Control Characters

When operating in the slave mode, the DL50 will recognize the following special control characters:

•

Ctrl F [FLASH]

The Ctrl F (decimal 6) control character causes the DL50 to toggle between flashing and non-flashing characters. Text which is between two

Ctrl F characters will flash, all other characters will be non-flashing.

For Example:

Assume that the character ^ denotes a Ctrl-F. If the following message is sent:

This is a message with ^FLASHING TEXT^ along with non-flashing text.

•

Ctrl R [RESET]

•

Ctrl X [RED]

•

Ctrl Y [AMBER (YELLOW)]

•

Ctrl Z [GREEN]

5–11

Chapter 5

Serial Communications

Duplex Protocol (continued)

Field 6: Message Attributes (continued)

Table 5.I

Bits 5 through 7 of the Message Attribute 1st Byte

Function

Fastest Display

Fast Display

Bits 7 5

➀

1 0 0

1 0 1

Decimal Value

➁

128

160

Slow Display 1 1 0 192

Slowest Display 1 1 1

➀

Bit 7 is always set to 1.

➁

Add decimal values for all bits within a byte to determine value of the entire byte.

224

Text Height / Relay Control- The second byte of the Message Attributes field specifies the text height and relay operation. The first three bits are reserved for future use. The third and fourth bits specify the text height. The sixth bit is reserved, the seventh bit controls the operation of the relay, and the eighth bit is always set to one.

Bit

Always Set

To 1

Relay Operation

0 = Relay Off

1 = Relay On

Reserved

Set to 0

Text Height

Set Bits 3 and 4 using Table 5.E

Reserved

Set to 0

Table 5.J

Bits 3 and 4 of the Message Attribute 2nd Byte

Text Height

2.1 Inch (53.3mm) Text

4.8 Inch (12 1.9 mm) Text

Reserved

Bits 4

0 0

0 1

1 0

3 Decimal Value

Reserved 1 1

➀

Add decimal values for all bits within a byte to determine value of the entire byte.

➀

Note: Bit 6 of message attribute 2nd byte:

Relay On = decimal value of 64

Relay Off = decimal value of 0

Bit 7 of message attribute 2nd byte always = decimal value of 128

5–12

Chapter 5

Serial Communications

Duplex Protocol (continued)

Field 6: Message Attributes

(continued)

Third Byte Message Attributes- The third byte of the Message Attributes field is reserved for future enhancements. Always set the eighth bit to 1 so that the field is not misinterpreted as a control character:

Bit

Always Set

To 1

Reserved

Field 7: Checksum

Byte 1

Checksum

Dummy Byte

Checksum MSB

Checksum LSB

1 Byte

Byte 2

1 Byte

Byte 3

1 Byte

If either the Checksum Most Significant Byte (MSB) or Checksum Least

Significant Byte (LSB) contain a value equivalent to a CR (decimal 13), the content of the dummy byte is adjusted to alter the value of the Checksum bytes. Refer to Appendix F for a description of how the checksum bytes are calculated.

Important: To disable the checksum, set the DL50 DIP switch S2 position 8 to Off (refer to Figure 3.2). With the checksum disabled, your host duplex messages must still contain 3 bytes in Field 7, but the checksum value is ignored by the DL50.

5–13

Chapter 5

Serial Communications

Duplex Protocol (continued)

Response From the DL50

To every command the DL50 successfully receives, the DL50 will provide a response. The response packet has the following format

Field 1 Field 2 Field 3

ACK or NAK Status Byte

1 Byte 1 Byte

Checksum

3 Bytes

1. If the DL50 Display successfully received the message packet, and is ready to process it, the DL50 sends an acknowledge response (ACK

6 decimal). In this case, the contents of the status byte are irrelevant.

2. If the DL50 successfully received the message packet but is not able to display it, a negative acknowledge response (NAK 21 decimal) is sent.

This indicates one of the following:

•

A Display FAULT has been detected, or

•

Display is in the BUSY state.

A NAK will be accompanied by a status byte with the bits set as defined here:

Bit Number

Meaning

0 = No Fault; 1 = Fault Detected

0 = Normal; 1 = Display is Busy

Unused

Always 1

3. If no response is sent from the DL50, it indicates one of the following:

•

The message was not received

•

CHECKSUM error was detected

•

DL50 address is set to 255

•

Message address is 255.

Both ACK and NAK responses are also accompanied by a three byte

Checksum. The first byte (dummy byte) is normally 0 and is only used when either or both checksum bytes contain a value equivalent to a Carriage

Return. Refer to Appendix F for a description of how the checksum bytes are calculated.

Note: If a DL50 has an address of 255, or if a DL50 receives a message with an address of 255, it does not send a response. This is to prevent multiple devices from trying to transmit simultaneously on the half-duplex RS-485 network.

5–14

Chapter Objectives

Slave Mode Operation

Example Messages

A–B

Chapter

Slave Mode Operation / Examples

This chapter describes how to operate the DL50 in the slave mode. The slave mode is the normal operating mode of the DL50. In order to show the operation of the DL50, this chapter contains example messages and host programs.

To operate the DL50 in the slave mode, perform the following steps:

1. Install the DL50 as described in Chapter 4.

2. Configure the DL50 using the configuration DIP switches as shown in

Figure 3.2. You can configure the DL50 using the DIP switches before or after installation. Make sure you press the reset button (or cycle power) if power is applied before you configure the DL50. This will load the DIP switch settings into the DL50’s memory. Refer to Figure 2.2 for the location of the reset button.

3. Depending upon the protocol selected using the DIP switches (Simplex or

Duplex), send message packets which are in the format described in

Chapter 5.

4. If you are using Duplex Protocol, the host device will receive an ACK

(decimal 6) or NAK (decimal 21) response from the DL50. Refer to description of DL50 response format in NO TAG. The host should re-transmit the message if a NAK is received.

The following are example message packets that could be transmitted to a

DL50. The function(s) of each command is provided.

6–1

Chapter 6

Slave Mode Operation / Examples

Example 1 (Simplex Protocol)

Command Function: Display message shown below on all DL50 message displays with an address of 42.

PRESSURE LOW

The command specifies a Roll up display mode

The host would need to send the following data (Simplex Protocol):

Field 2

ASCII Text

(Decimal 77)

1 of 12 bytes

Field 2

ASCII Text

(Decimal 82)

2 of 12 bytes

Message Text

Field 2

ASCII Text

Field 2

ASCII Text

(Decimal 69)

(Decimal 83)

3 of 12 bytes 4 of 12 bytes

Field 2

ASCII Text

(Decimal 83)

5 of 12 bytes

Field 2

ASCII Text

(Decimal 85)

6 of 12 bytes

Field 2

ASCII Text

(Decimal 82)

7 of 12 bytes

Field 2

ASCII Text

(Decimal 69)

8 of 12 bytes

Message Text

Field 2

ASCII Text

Field 2

ASCII Text

SPACE

(Decimal 32)

(Decimal 76)

9 of 12 bytes 10 of 12 bytes

Field 2

ASCII Text

(Decimal 79)

11 of 12 bytes

Field 2

ASCII Text

(Decimal 87)

12 of 12 bytes

Roll Up Message

Field 3

Display Mode

Ctrl-D

(Decimal 4)

1 of 3 bytes

Slave Address 42

Field 4

Slave Address

Decimal

2 of 3 bytes

Line #1

Field 5

Line Number

Decimal

3 of 3 bytes

End Message

Field 6

Carriage Return

(Decimal 13)

1 byte

A simple BASIC program for a host PC to send the message would be:

100: Print #1, “PRESSURE LOW” + CHR$(4) + CHR$(42) + CHR$(1) + CHR$(13)

6–2

Chapter 6

Slave Mode Operation / Examples

Example 2 (Duplex Protocol)

Command Function: Display message shown below on all DL50 message displays.

Motor ON

The command specifies message attributes of roll in display mode, fast display speed, 4.8 inch text, and annunciation relay on.

Address 255 specifies that the message is displayed on all DL50s.

The host would need to send the following data (Duplex Protocol):

Append & Display

Message

Field 1

Control Byte

Ctrl-B

(Decimal 2)

1 byte

Field 2

ASCII Text

(Decimal 77)

1 of 8 bytes

Field 2

ASCII Text

(Decimal 111)

2 of 8 bytes

Message Text

Field 2

ASCII Text

(Decimal 116)

3 of 8 bytes

Field 2

ASCII Text

(Decimal 111)

4 of 8 bytes

Field 2

ASCII Text

(Decimal 114)

5 of 8 bytes

Field 2

ASCII Text

SPACE

(Decimal 32)

6 of 8 bytes

Field 2

ASCII Text

(Decimal 79)

7 of 8 bytes

Field 2

ASCII Text

(Decimal 78)

8 of 8 bytes

Message Text

Field 3

Slave Address

255

Decimal

1 byte

Fast Display,

Roll in

Relay On

4.5 Inch text

Always Set to 128

Field 6 Field 6 Field 6

Message Attributes Message Attributes Message Attributes

Field 7

Checksum

165

Decimal

1 of 3 bytes

200

Decimal

2 of 3 bytes

128

Decimal

3 of 3 bytes

Decimal

1 of 3 bytes

Field 4

Line Number

Decimal

1 byte

Checksum Bytes

Field 7

Checksum

Decimal

2 of 3 bytes

Field 5

Carriage Return

(Decimal 13)

1 byte

Field 7

Checksum

202

Decimal

3 of 3 bytes

A simple BASIC program for a host PC to send the message would be:

100: Print #1, CHR$(2) + “Motor ON” + CHR$(255) + CHR$(1) + CHR$(13) + CHR$(165) +

HR$(200) + CHR$(128) + CHR$(0) + CHR$(05) + CHR$(202

)

Note: Refer to Appendix F for checksum calculations.

6–3

Chapter 6

Slave Mode Operation / Examples

Example 3 (Relay On)

Command Function: Energize annunciation relay on DL50 with an address of 150.

The host would need to send the following data (Simplex Protocol):

Address

Field 4

Slave Address

150

Decimal

1 byte

Relay On

Field 5

Line Number

Decimal

1 byte

End Message

Field 6

Carriage Return

(Decimal 13)

1 byte

A simple BASIC program for a host PC to send the message would be:

100: Print #1, CHR$(150) + CHR$(48) + CHR$(13)

Example 4 (Relay Off)

Command Function: De-energize annunciation relay on DL50 with an address of 150.

The host would need to send the following data (Simplex Protocol):

Address

Field 4

Slave Address

150

Decimal

1 byte

Relay Off

Field 5

Line Number

Decimal

1 byte

End Message

Field 6

Carriage Return

(Decimal 13)

1 byte

A simple BASIC program for a host PC to send the message would be:

100: Print #1, CHR$(150) + CHR$(49) + CHR$(13)

6–4

Chapter 6

Slave Mode Operation / Examples

Example 5 (Send 2-Line Message)

Command Function: Display message as shown below on lines 1 and 2 of all

DL50s using the line number field value of 30.

S e q u e n c e E r r o r

R OB OT N OT

P OS I T I O N E D

The command is written for a Catalog No. 2706-F11J or -F11JC display.

Address 127 specifies that the message is displayed on all DL50s. The word

“NOT” in the message will flash. The host would need to send the following data (Simplex Protocol):

Field 2

ASCII Text

(Decimal 83)

1 of 42 bytes

Field 2

ASCII Text

(Decimal 101)

Field 2

ASCII Text

(Decimal 113)

2 of 42 bytes 3 of 42 bytes

Field 2

ASCII Text

(Decimal 117)

4 of 42 bytes

Message Text

Field 2

ASCII Text

(Decimal 101)

Field 2

ASCII Text

(Decimal 110)

Field 2

ASCII Text

(Decimal 99)

5 of 42 bytes 6 of 42 bytes 7 of 42 bytes

Field 2

ASCII Text

(Decimal 101)

Field 2

ASCII Text

SPACE

(Decimal 32)

8 of 42 bytes 9 of 42 bytes

Field 2

ASCII Text

(Decimal 69)

Field 2

ASCII Text

(Decimal 114)

10 of 42 bytes 11 of 42 bytes

Field 2

ASCII Text

(Decimal 114)

12 of 42 bytes

Field 2

ASCII Text

(Decimal 111)

13 of 42 bytes

Message Text

Field 2

ASCII Text

(Decimal 114)

Field 2

ASCII Text

(Decimal 58)

14 of 42 bytes 15 of 42 bytes

Field 2

ASCII Text

SPACE

(Decimal 32)

16 of 42 bytes

Field 2

ASCII Text

SPACE

(Decimal 32)

17 of 42 bytes

Field 2

ASCII Text

SPACE

(Decimal 32)

18 of 42 bytes

Field 2

ASCII Text

Field 2

ASCII Text

SPACE

(Decimal 32)

SPACE

(Decimal 32)

19 of 42 bytes 20 of 42 bytes

Field 2

ASCII Text

(Decimal 82)

21 of 42 bytes

Field 2

ASCII Text

(Decimal 79)

22 of 42 bytes

Message Text

Field 2

ASCII Text

Field 2

ASCII Text

(Decimal 66)

(Decimal 79)

23 of 42 bytes 24 of 42 bytes

Field 2

ASCII Text

(Decimal 84)

25 of 42 bytes

Field 2

ASCII Text

SPACE

(Decimal 32)

26 of 42 bytes

Field 2

ASCII Text

Flash On

(Decimal 6)

27 of 42 bytes

Field 2

ASCII Text

Field 2

ASCII Text

(Decimal 78)

(Decimal 79)

28 of 42 bytes 29 of 42 bytes

Field 2

ASCII Text

Field 2

ASCII Text

(Decimal 84)

(Decimal 73)

37 of 42 bytes 38 of 42 bytes

Field 2

ASCII Text

(Decimal 84)

30 of 42 bytes

Field 2

ASCII Text

Flash Off

(Decimal 6)

31 of 42 bytes

Message Text

Field 2

ASCII Text

(Decimal 79)

39 of 42 bytes

Field 2

ASCII Text

(Decimal 78)

40 of 42 bytes

Message Text

Field 2

ASCII Text

SPACE

(Decimal 32)

Field 2

ASCII Text

(Decimal 80)

32 of 42 bytes 33 of 42 bytes

Field 2

ASCII Text

(Decimal 69)

Field 2

ASCII Text

(Decimal 68)

41 of 42 bytes 42 of 42 bytes

Field 2

ASCII Text

(Decimal 79)

34 of 42 bytes

Simplex

All Slaves

Field 4

Slave Address

127

Decimal

1 byte

Field 2

ASCII Text

(Decimal 83)

35 of 42 bytes

Field 2

ASCII Text

(Decimal 73)

36 of 42 bytes

Line Number 30

Field 5

Line Number

Decimal

1 byte

Field 6

Carriage Return

(Decimal 13)

1 byte

A simple BASIC program for a host PC to send the message would be:

100: L1$ = “Sequence Error: (5 Spaces)”

110: L2$ = “ROBOT ” + CHR$(6) + “NOT” + CHR$(6) + “POSITIONED”

120: Print #1, L1$ + L2$ + CHR$(127) + CHR$(30) + CHR$(13)

6–5

Chapter 6

Slave Mode Operation / Examples

Programming Examples

The following are examples showing how some of the most common hosts would be programmed to send messages to a slave DL50.

Using the DL50 to Display Messages from a DL20

Chapter 4 illustrates the connections between the DL50 and a DL20 Series

Dataliner.

Note: You must set the DL50 for Simplex protocol when communicating with a DL20.

The position and size of the characters displayed on the DL50 is determined by:

•

Number of lines available on the master DL20

•

Message attributes

When programming DL20 messages for a DL50, refer to the following charts and suggestions.

DL20 Display Type

1, 2, or 4 Line

➀

Catalog No. 2706-F11J, -F11JC

2.1 Inch (53.3 mm)

Characters

2 Lines Available

2 Line

4.8 Inch (121.9 mm)

Characters

1 Line Available

1 Line

➁

Auto Select

One or Two Lines

Available

4 Line

➁

Catalog No. 2706-F21J, -F21JC

2.1 Inch (53.3 mm)

Characters

2 Lines Available

4.8 Inch (121.9 mm)

Characters

1 Line Available

Auto Select

One or Two Lines

Available

DL20 Display Type

1, 2, or 4 Line

➀

4 Line 1 Line

➀

Number of DL20 lines required to use all of the characters on each line of the DL50.

➁

The DL50 will Roll the 20 characters from right to left, 10 (4.8 inch) characters at a time.

4 Line

6–6

Chapter 6

Slave Mode Operation / Examples

Table 6.A

Application Hints for using a DL20 as host

DL20 Message Type

“Line 1 Only”or “Line 2 Only” message 20 characters on the DL20

“Line 1 Only”or “Line 2 Only” message > 20 characters on the DL20

“All Lines” message on a 4 line DL20.

Scrolling message on a DL20.

Flashing message on a DL20.

Displaying 2.1 Inch (53.3 mm) Characters

How Message Appears On DL50

Message appears as a Line 1 or Line 2 message on the DL50 with up to 20 characters.

➀

Message appears as a Line 1 or Line 2 message on the DL50 in segments of up to 20 characters each.

➀

Do not send message to a DL50 in Auto-Select mode.

Also scrolls on a DL50, but the scroll rate is slower than the

DL20 wait time (in .1 seconds).

Also flashes on a DL50. A scrolling message is not displayed as flashing

DL50/DL20 Application Notes

DL50: 2.1 Inch characters or auto-select.

DL20: Line used attribute.

DL50: 2.1 Inch characters or auto-select

DL20: Line used attribute.

DL50: 2.1 Inch characters.

DL20: Line used attribute.

DL50: Scroll message.

DL20: Scroll message and wait time attributes.

DL50: Flash messages.

DL20: Flash attribute and scroll message attribute.

➀

Uses the 20 characters on the left half of Catalog No. 2706-F21J, -F21JC.

“Line 1 Only” message 20 characters on the DL20.

DL20 Message Type

“Line 1 Only” message > 20 characters on the

DL20.

“All Lines” message on a 4 line DL20.

“All Lines” message on a 2 line DL20.

Scrolling message on a DL20.

Flashing message on a DL20.

Displaying 4.8 Inch (121.9 mm) Characters

How Message Appears On DL50

Message appears on DL50 with up to 20 characters.

➁

DL50/DL20 Application Notes

DL50: 4.8 Inch characters.

DL20: Line used attribute, wait time attribute.

Message appears as a Line 1 or Line 2 message on the DL50 in segments of up to 20 characters each.

➁

For Catalog No. 2706-F11J, wait time = 4 is recommended.

Do not send message to a DL50 in Auto-Select or large text mode.

Do not send message to a DL50 in large text mode.

Catalog No. 2706-F21J: Also scrolls, but the scroll rate is slower than the DL20 wait time (in .1 seconds).

Catalog No. 2706-F11J: Do not use the DL20 scroll mode attribute.

➁

DL50: 4.8 Inch characters, auto-select mode.

DL20: Line used attribute, wait time attribute.

2.1 inch characters only, see above.

DL50: Scroll message.

DL20: Scroll message and wait time attributes.

Also flashes on a DL50. A message with the scroll attribute set will not be displayed as flashing.

DL50: Flash messages.

DL20: Flash attribute and scroll message attribute.

➁

Catalog No. 2706-F11J, -F11JC scrolls 20 character segments from right to left, 10 characters at a time.

6–7

Chapter 6

Slave Mode Operation / Examples

Using the DL50 to Display Messages from a DL40

The DL50 can receive message data from a Bulletin 2706 DL40 Series

Dataliner. Chapter 4 illustrates the connections.

Note: You must set the DL50 for Simplex protocol when communicating with a DL40.

The position and size of the characters displayed on the DL50 is determined by:

•

Number of lines available on the master DL40

•

Message attributes

When programming DL40 messages for a DL50, refer to the following charts and suggestions.

DL40 Display Type

2 or 4 Line

➀

Catalog No. 2706-F11J, -F11JC

2.1 Inch

Characters

2 Lines Available

2 Line

4.8 Inch

Characters

1 Line Available

2 Line

➁

Auto Select

One or Two Lines

Available

4 Line

➁

Catalog No. 2706-F21J, -F21JC

2.1 Inch

Characters

2 Lines Available

4.8 Inch

Characters

1 Line Available

Auto Select

One or Two Lines

Available

DL40 Display Type

2 or 4 Line

➀

4 Line 2 Line

➁

4 Line

➁

➀

Number of DL40 lines required to use all of the characters on each line of the DL50.

➁

The DL50 will scroll the 20 characters from right to left, 10 (4.8 inch) characters at a time, unless the

DL40 slave message-length attribute is set to 10 characters.

6–8

Chapter 6

Slave Mode Operation / Examples

Table 6.B

DL40 Application Hints for using a DL40 as host

DL40 Message Type

“Line 1 Only”or “Line 2 Only” message 20 characters on the DL40

“Line 1 Only”or “Line 2 Only” message > 20 characters on the DL40

“All Lines” message on the DL40.

Scrolling message on a DL40.

DL40 message contains characters that blink.

Energize slave (DL50) relay.

Control DL50 Tri-Color Display Colors

Displaying 2.1 Inch (53.3 mm) Characters

How Message Appears On DL50 DL50/DL40 Application Notes

Message appears as a Line 1 or Line 2 message on the DL50 with up to 20 characters.

➀

DL50: 2.1 Inch characters or Auto-Select.

DL40: Line Used Attribute.

Appears as a Line 1 or Line 2 message on the DL50 in segments of up to 20 characters each.

➀

DL50: 2.1 Inch characters or Auto-Select.

DL40: Line Used Attribute.

Do not send message to a DL50 in Auto-Select mode.

DL50: 2.1 Inch characters

DL40: 2 or 4 line displays.

Also scrolls on a DL50, but the scroll rate is slower than the DL40 wait time (in 0.1 seconds).

The same characters will blink on a DL50. It is possible to scroll a message with blinking characters.

DL50 relay is energized until another message is received with the slave relay attribute set to off.

Each message can be Red, Green or Amber.

DL50: Scroll message.

DL40: Scroll message and wait time attributes.

DL50: Blinking characters.

DL40: Blinking (<CTRL>B) characters in message and scrolling messages.

DL 50: Turn on relay.

DL40: Energize slave relay attribute.

DL40: Set slave Message Color attribute..

DL50: Displays red, green, or amber text.

➀

Uses the 20 characters on the left half of Catalog No. 2706-F21J, -F21JC.

“Line 1 Only” message 20 characters on the

DL40.

DL40 Message Type

“Line 1 Only” message > 20 characters on the

DL40.

“All Lines” message on a 2 or 4 line DL40.

Scrolling message on a DL40.

DL40 message contains characters that blink.

Energize slave (DL50) relay.

Control DL50 Tri-Color Display Colors

Displaying 4.8 Inch (121.9 mm) Characters

How Message Appears On DL50

Message appears on DL50 with up to 20 characters.

➁

Appears as a Line 1 or Line 2 message on the DL50 in segments of up to 20 characters each.

➁

For Catalog No. 2706-F11J, wait time = 4 is recommended.

Do not send message to a DL50 in

Auto-Select mode.

Catalog No. 2706-F21J: Also scrolls, but the scroll rate is slower than the DL40 wait time (in .1

seconds).

Catalog No. 2706-F11J: Do not use the DL40 scroll mode attribute.

➁

DL50/DL40 Application Notes

DL50: 4.8 Inch characters.

DL40: Line Used Attribute, Wait Time Attribute

DL50: 4.8 Inch characters.

DL40: Line Used Attribute, Wait Time Attribute

DL50: 2.1 inch characters

DL40: 2 or 4 line displays

DL50: Scroll message

DL40: Scroll message and wait time attributes.

The same characters will blink on a DL50.

DL50 relay is energized until another message is received with the slave relay attribute set to off.

Each message can be Red, Green or Amber.

DL50: Flash messages

DL40: “Flash” attribute and scroll message attribute.

DL 50: Turn on relay.

DL40: Energize slave relay attribute.

DL40: Set slave Message Color attribute.

DL50: Displays red, green, or amber text.

➁

Catalog No. 2706-F11J, -F11JC scrolls 20 character segments from right to left, 10 characters at a time.

6–9

Chapter 6

Slave Mode Operation / Examples

Updating Embedded Variables from a DL20 or DL40

Use the following guidelines when updating embedded variable data in DL50 messages from a DL20 or DL40 Dataliner.

•

For a DL20, update variables using a sequencer to strobe the high and low bytes of each variable as well as the message number (as described in

DL20 User Manual). A baud rate of 9600 is recommended.

•

For a DL40, a baud rate of 9600 is recommended. You may update variable data sent to the DL40 as frequently as the PLC scan permits, but you must have the DL40’s message wait time set for more than 1 second.

With a 1 second wait time, you may set the DL40 auto repeat attribute to

YES.

Note: DO NOT set the DL40 wait time to 0 and the auto repeat attribute to

YES for any messages sent to the DL50 by either the DL20 or DL40.

IMPORTANT:

If you are using a DL20 or DL40 to send messages to a DL50 at a baud rate of 19.2K, we suggest that the updates of embedded variable data be sent in intervals longer than the typical program scan times. You can accomplish this by using the logic program (next page) in a PLC-5:

6–10

Chapter 6

Slave Mode Operation / Examples

Rung 2:0

Rung 2:1

Rung 2:2

Rung 2:3

Rung 2:4

Figure 6.1

PLC-5 Embedded Variable Wait Time Adjustment

+TON

TIMER ON DELAY

Timer

Time base

T4:0

0.01

Preset See table below

Accum 3

+TON

TIMER ON DELAY

Timer

Time base

Preset

Accum

T4:1

0.01

1000

256

+MOV

MOVE

Source

Dest

+MOV

MOVE

Source

Dest

1000

0:010

1000

T4:1.ACC

256

0:011

253

+MOV

MOVE

Source

Dest

0:010

1000

Catalog No. /

Character Height

Catalog No. 2706-F11J, -F11JC

4.8 Inch (121.9 mm) Text

Catalog No. 270-F11J, -F11JC

➀

2.1 Inch (53.3 mm) Text

Catalog No. 2706-F21J, -F21JC

➁

4.8 Inch (121.9 mm) Text

Catalog No. 2706-F21J, -F21JC

2.1 Inch (53.3 mm) Text

Preset Value for

TON T4:0

400

Allows 20 characters to scroll

➀

Baud Rate u

9600

➁

Baud Rate w

9600

Wait Time of DL40

Auto Repeat Message

6–11

Chapter 6

Slave Mode Operation / Examples

DL50 BASIC Alarm Programming Example

This example is for Catalog No. 2706-F11J, -F11JC. Use it as a guide in creating your own alarm programs. The program determines which alarm(s) are current and the priority in which they are displayed. The program is compatible with Microsoft QuickBasic and IBM GW BASIC / BASIC A.

Here is a quick summary of the program:

Lines 5 to 10 initialize the computer communications port for the DL50.

Lines 100 and 120 send the alarm message to the DL50.

Lines 1005 to 2000 define the messages.

Lines 4000 to 6000 determine current alarms and priority.

Lines 9000 to 9200 provide a menu of the available test messages.

Program:

5 REM LINE 10 PREPARES SERIAL PORT ’COM1’ TO SEND MESSAGES TO THE DL50

6 REM WITH BAUD RATE = 9600

10 OPEN “com1:9600,n,8,1,cs,ds,cd”FOR RANDOM AS #1

20 REM

40 GOSUB 4000

THE USER INSERTS

OTHER ’INITIALIZATION’ CODE HERE

THE PROGRAM DOES A ’GOSUB’ TO LINES 4000-6000 TO EVALUATE IF ANY

ALARMS ARE CURRENT AND WHICH WOULD GET PRIORITY TO BE DISPLAYED.

97 REM

98 REM

LINE 100 DETERMINES WHICH OTHER ’GOSUB’ LINE WILL DEFINE WHAT NEEDS

TO BE SENT TO THE DL50

99 REM ALARM= 1 2 3 4 5 6 7 8

100 ON ALARM GOSUB 1005, 1010, 1015, 1020, 1025, 1030, 1035, 2000

120 PRINT #1, M$ ; CHR$ (ADDRESS) ; CHR$(LN) ; CHR$(13)

130 GOTO 35

998 REM

999 REM

1000

1001 REM

1002 REM

1003 REM

1004 REM

LINES 1005-2000 DEFINE THE MESSAGES TO BE SENT TO THE DL50

SPACING, LINE CHOICE (AND SOMETIMES CHARACTER HEIGHT), ADDRESSING

AND BLINKING CHARACTERS ARE ALL DETERMINED HERE

M$, THE ADDRESS, AND LINE NUMBER ARE SENT TO THE DL50 AFTER

THE “RETURN”

1005 LN=1: ADDRESS = 1: M$ = “TEST ALARM #1”

1006 RETURN

1010 LN=2: ADDRESS = 1: M$ = “TEST ALARM #2”

1011 RETURN

1015 LN=3: ADDRESS = 1: M$ = “TEST ALARM #3”

1016 RETURN

1020 LN=3O: ADDRESS = 1: M$ = “ THIS IS A TWO-LINE TEST ALARM #4 ”

1021 RETURN

(Program continued on next page)

6–12

Chapter 6

Slave Mode Operation / Examples

1025 LN=48: ADDRESS = 1: M$ = ’’ ’’: REM THIS TURNS ON THE DL50‘s RELAY

1026 RETURN

1030 LN=49: ADDRESS = 127: M$ = ’’ ’’: REM THIS TURNS OFF THE DL50‘s RELAY

1031 RETURN

1035 LN=50: ADDRESS = 127: M$ = ’’ ’’: REM THIS CLEARS THe DL50 DISPLAY

1036 RETURN

2000 RETURN

4000 REM

4001 REM

4002 REM

LINE 4000-6000 DETERMINE IF ANY ALARMS ARE CURRENT AND WHICH

ONE HAS PRIORITY

4030 INPUT “Alarm No.”; ALARM: REM ###THIS IS FOR PROGRAM TEST ONLY###

4040 IF ALARM=0 THEN END: REM ###THIS LINE IS FOR PROGRAM TEST ONLY###

4050 REM

6000 RETURN

THE USER PLACES LINES OF CODE FOR ALARM HANDLING HERE

9000 REM DISPLAY THE MENU OF TEST MESSAGES

9001 REM ###THESE LINES FOR PROGRAM TEST ONLY###

9005 PRINT “ALARM # Sent to Line # Result at Dl50 (in Auto-Select Mode)

9006 PRINT “_______ ___________ ____________________________”

9110 PRINT “ 1 1 ’ TEST ALARM # 1 ’ ”

9115 PRINT “ 2 2 ’ TEST ALARM #2 ’ ”

9120 PRINT “ 3 3 ’ ALARM #3 ’ (Large Characters) ”

9125 PRINT “ 4 30 ’ THIS IS A TWO-LINE ’ (Lines 1 & 2) ”

9130 PRINT “ TEST ALARM #4 ’ ”

9135 PRINT “ 5 48 * THIS TURNS ON THE DL50) RELAY * ”

9140 PRINT “ 6 49 * THIS TURNS OFF THE DL50) RELAY * ”

9145 PRINT “ 7 30 * THIS CLEARS THE DL50) DISPLAY * ”

9150 PRINT “ 8 ** UNUSED ** ’ ”

9155 PRINT “ 9 ** REPEATS THIS MENU AGAIN ** ”

9160 PRINT “ 0 ** QUITS THE PROGRAM ** ”

9165 PRINT “

9200 RETURN

Using the DL50 ALARM BASIC Program

After entering the program, the program will prompt to enter an alarm number. Press any key 0 through 7 and then the Return key. Refer to program lines 9000 through 9160 for a description of each alarm function. Press 0 and

Return to exit the program.

Note: You can also use this program in a PLC/SLC BASIC Module with the changes described on the following page.

6–13

Chapter 6

Slave Mode Operation / Examples

1771–DB BASIC Module Simplex Example

The following is an example of print statement using a BASIC Module

(Catalog No. 1771-DB) as a host. The example assumes that the DL50 slave has an address of 1.

100: PRINT #“VALVE NUMBER 1 OPEN”,CHR(1),CHR(2),CHR(13)

Where: (1) specifies slave address 1

(2) specifies line 2 of the display

(13) is equivalent to a Carriage Return (CR

After receiving this message, the DL50 will display:

VALVE NUMBER 1 OPEN

on the second line of the display. When using the BASIC module, you must use the print CHR (decimal equivalent character) function.

Note: The alarm program for BASIC on page 6-12 may also be used on the

BASIC modules (Catalog No. 1771-DB or 1746-BAS) with the following changes and additions:

1 STRING 200,40

10 CALL 119 : REM SETS PERIPHERAL PORT TO DEFAULTS

99 REM N= 0 1 2 3 4 5 6 7 8

100 ON N GOSUB 2000, 1005, 1010, 1015, 1020, 1025, 1030, 1035, 2000

110 IF N=9 GOTO 35

120 PRINT # $(1), CHR(A), CHR (LN ), CHR (13)

4030 INPUT “Alarm No.” N: REM ###THIS IS FOR PROGRAM TEST ONLY###

4040 IF N=0 THEN END: REM ###THIS LINE IS FOR PROGRAM TEST ONLY###

On Lines 1005 t0 1035 change:

ADDRESS to A

M$ to $(1)

6–14

Chapter 6

Slave Mode Operation / Examples

Flexible Interface Module Example

In this example, a PLC-5/15 is used to send a message through a Flexible

Interface Module (Catalog No. 2760-RB) using RS-422 communications.

The RS-422 communications port is compatible with the DL50 RS-485 port.

Figure 6.2 illustrates the setup. The Simulator Module (Catalog No.

1771-SM) provides the external inputs, in your application this may be any of a variety of I/O modules.

Figure 6.2

Flexible Interface Module Example

Flexible Interface Module

(Catalog No. 2760-RB)

RS-485 Protocol Cartridge

(Catalog No. 2760-SFC2)

Simulator Module

(Catalog No. 1771-SM)

R B M o d u l e t o D L 5 0

PLC-5/15

Flexible Interface Module Configuration:

For this example, the Flexible Interface Module can use port 1, 2, or 3.

6–15

Chapter 6

Slave Mode Operation / Examples

The selected port should be set as follows:

MODEM CONTROL (ENABLE/DISABLE) = DISABLE.

9600 BITS PER SECOND (YES/NO) = YES.

8 BITS NO PARITY (YES/NO) = YES.

XON/XOFF (ENABLE/DISABLE) = DISABLE.

RS422 (YES/NO) = YES.

RECEIVE MATRIXING (ENABLE/DISABLE) = DISABLE.

BYTE SWAPPING (ENABLE/DISABLE) = ENABLE.

BINARY DATA NO CONVERSIONS (YES/NO) = YES.

HDR/TLR ON OUTPUT (ENABLE/DISABLE) = ENABLE.

HEADER BYTE LENGTH (DEC 0 . . . 4) = 0.

HEADER DATA [0] (HEX 0 . . .ff) = 0.

HEADER DATA [1] (HEX 0 . . .ff) = 0.

HEADER DATA [2] (HEX 0 . . .ff) = 0.

HEADER DATA [3] (HEX 0 . . .ff) = 0

TRAILER BYTE LENGTH (DEC 0 . . .4) = 1

TRAILER DATA [0] (HEX 0 . . .ff) = 0.

TRAILER DATA [1] (HEX 0 . . .ff) = d.

TRAILER DATA [2] (HEX 0 . . .ff) = 0.

TRAILER DATA [3] (HEX 0 . . .ff) = 0

MAX DATA BYTE LENGTH (DEC 0 . . . 124) = 0.

MIN DATA BYTE LENGTH (DEC 0 . . . 124) = 0

The program consists of two rungs:

•

Rung 0 initiates the block transfer of data to the Flexible Interface

Module. N7:00 is the data file with the DL50 message. In this example,

I:2/0 is the input which triggers the message.

•

Rung 1 reads command responses from the Flexible Interface Module.

You can delete this rung if the Flexible Interface Module is configured with handshake data disabled and the DL50 is set for Simplex Protocol.

Figure 6.3

Ladder Diagram: Flexible Interface Module Example

Rung 2:0

ONS

BTW

BLOCK TRNSFR WRITE

Rack

Group

Module

Control Block

Data file

Length

Continuous

N7:5

N7:100

Rung 2:1

BTW

BLOCK TRNSFR READ

Rack

Group

Module

Control Block

Data file

Length

Continuous

N7:0

N7:200

6–16

Chapter 6

Slave Mode Operation / Examples

This is what the data files look like:

Address 0 1 2

N7:100 \00\26 \05\01 _R

N7:110 50 _ _ \05\01

Byte Count

(Including Words

N7:100 N7:112) = 26

Source (5) = Backplane

DL50 Line No. = 1

DL50 Address Byte = 5

Destination (01) = Port 1

5 du

6 le

8 o_

Note: _ = Space

Note: If byte swapping is enabled, all data should end on a word boundary

(must have even number byte count)

6–17

Chapter 6

Slave Mode Operation / Examples

PLC-5 Channel 0 Simplex Example

This example demonstrates how to use the RS232 Channel 0 of supporting members of the Allen-Bradley PLC-5 family to trigger a Dataliner DL50 display. In the example, a counter is used to simulate changing variable data, which could be a motor speed or a temperature. This will demonstrate how variable data may be incorporated into messages.

The program below will display the message “Temp ##” in green (red on

F11J or F21J), where ## represents the sample variable. The text size will depend on the character size setting on the DL50 display.

Temp ##

Channel 0 Configuration

The first step is to configure the PLC channel 0 port to communicate with a

DL50 slave. Table 6.C shows the user mode configuration of the PLC channel 0. Note that the baud rate should match that being used by the DL50.

Table 6.C

Configuring the Channel 0 Port

Channel 0

Channel 1A

Channel 1B

Channel 2A

Channel 2B

Channel 3A

USER

DH+

SCANNER MODE

ADAPTER MODE

SCANNER MODE

N/A

Diag.file:

User Mode

Channel 0 Configuration

N11 XON/XOFF:

Remote mode change: DISABLED

Mode Attention Char.: \0x1b

System mode char.:

User mode char.:

Baud rate:

Stop bits:

Control line:

9600

Parity:

Bits per character:

NO HANDSHAKING

Echo/delete mode:

Termination 1:

Termination 2:

CRT

\0xd

\0x0

RTS send delay (20 ms):

RTS off delay (20 ms):

Append 1:

Append 2:

DISABLED

NONE

\0xd

6–18

Chapter 6

Slave Mode Operation / Examples

PLC String Variables

For this example, processor memory file #12 is set up as a string file which contains the parts needed to form a message packet for a DL50 in Simplex mode. Table 6.D has the variables for any Simplex mode communication, and Table 6.E shows the strings for this example.

Table 6.D

Variables for Simplex Protocol and Their Functions

Memory

Location

Symbol Description

ST12:0 MSG_SEND

ST12:1

ST12:2

ST12:3

ST12:4

VARIABLE

PRE_TEXT

TEXT

F3_F4_F5

The message which is built by the PLC and is actually sent out to the DL50 through CH0

The converted integer sample variable being appended to the message

The simplex protocol control byte (Field 1) and color code

(F11JC and F21JC only)

The message text

Fields 3, 4, and 5 of the simplex protocol

Field 3 determines the display mode

Field 4 determines the slave address

Field 5 determines the line number

These fields are followed by a \OD to produce a carriage return

The contents of these strings must be assigned using the off-line programming software (6200). Control code values are entered into the strings by using a forward slash followed by two hexadecimal digits. (See

Appendix B, which has hexadecimal values for all ASCII and extended

ASCII characters.)

Table 6.E

Strings Representing Control Code Values for This Example

Address

ST12:0

ST12:1

ST12:2

ST12:3

ST12:4

LEN

STRING TEXT

\19Temp 36\03\7F\01\0D

\02\19

Temp

\01\7F\01\0D

Note: Messages and attributes are changed by changing the strings or by having the PLC append different pre-determined string numbers to the

MSG_SEND string.

6–19

Chapter 6

Slave Mode Operation / Examples

Ladder Logic

The ladder logic builds a string from all the parts and sends it out to the

DL50 via channel 0. Messages sent to the DL50 by the PLC must observe the required inter-message delays described in Table 5.F.

Note: Use a timer to avoid sending continuous messages.

Figure 6.4

Ladder Diagram: Channel 0 Simplex Example

Rung 2:0

A free running timer used to trigger a variable counter and create a delay for message timing.

| T4:0 +TON–––––––––––––––+ |

+––]/[–––––––––––––––––––––––––––––––––––––––––––––––+TIMER ON DELAY +–(EN)–+

| DN |Timer T4:0| |

| |Time base 0.01+–(DN) |

| |Preset 100| |

| |Accum 28| |

| +––––––––––––––––––+ |

Rung 2:1

A counter is used to simulate a changing variable value.

| T4:0 +CTU–––––––––––––––+ |

+––] [–––––––––––––––––––––––––––––––––––––––––––––––+COUNT UP +–(CU)–+

| DN |Counter C5:0| |

| |Preset 99+–(DN) |

| |Accum 36| |

| +––––––––––––––––––+ |

Rung 2:2

Creation of output string for DL50. Message sending is initiated by discrete input I:001/00 and controlled by the delay timer.

First the variable is converted from an integer to an ASCII string. (AIC)

Next the output string is assembled from the separate parts. (ACN)

Finally the output string is sent out to the DL50 through CH0. (AWT)

| I:001 T4:0 +AIC–––––––––––––––––––––––––+ |

+––] [–––] [––––––––––––––––––––––––––––––––––++INTEGER TO STRING CONVERSION++–+

| 00 DN ||Source C5:0.ACC|| |

| || 36|| |

| ||Destination VARIABLE|| |

| |+––––––––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A PRE_TEXT|| |

| | |Source B TEXT|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B VARIABLE|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B F3_F4_F5|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

6–20

Chapter 6

Slave Mode Operation / Examples

| |+AWT––––––––––––––––––––+ | |

| ++ASCII WRITE +–(EN)+ |

| |Channel 0| |

| |Source MSG_SEND+–(DN) |

| |Control R6:0| |

| |String length 0+–(ER) |

| |Characters sent 15| |

| +–––––––––––––––––––––––+ |

Rung 2:3

The counter is reset when it is done.

| C5:0 C5:0 |

+––] [–––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––––(RES)–+

| DN |

Rung 2:4

| |

+––––––––––––––––––––––––––––––––[END OF FILE]–––––––––––––––––––––––––––––––––+

| |

6–21

Chapter 6

Slave Mode Operation / Examples

PLC-5 Channel 0 Duplex Example

The following example demonstrates how to use the RS232 Channel 0 of supporting members of the Allen-Bradley PLC-5 family to trigger a DL50

Dataliner display, running in Duplex mode with checksum disabled. In this example a counter is used to simulate changing variable data, which could be a motor speed or a temperature. This will demonstrate how variable data can be incorporated into messages.

The program below will display the message “Speed ##” in 4.8-inch amber characters (red on F11J or F21J) in hold mode where ## represents the sample variable.

Speed ##

Channel 0 Configuration

The first step is to configure the PLC channel 0 port to communicate with a

DL50 slave. Table 6.F shows the user mode configuration of the PLC. Note that the baud rate should match that being used by the DL50.

Table 6.F

Configuring the Channel 0 Port

Channel 0

Channel 1A

Channel 1B

Channel 2A

Channel 2B

Channel 3A

USER

DH+

UNUSED

N/A

Diag.file:

User Mode

Channel 0 Configuration

N11 XON/XOFF:

Remote mode change: DISABLED

Mode Attention Char.: \0x1b

System mode char.:

User mode char.:

Baud rate:

Stop bits:

Control line:

9600

Parity:

Bits per character:

NO HANDSHAKING

Echo/delete mode:

Termination 1:

Termination 2:

CRT

\0xd

\0x0

RTS send delay (20 ms):

RTS off delay (20 ms):

Append 1:

Append 2:

DISABLED

NONE

\0xd

\0x0

6–22

Chapter 6

Slave Mode Operation / Examples

PLC String Variables

For this example, processor memory file #12 is set up as a string file which contains the parts needed to form a message packet for a DL50 in Duplex mode. Table 6.G has the variables for any Duplex mode communication, and

Table 6.H shows the strings for this example.

Table 6.G

Variables for Duplex Protocol and Their Functions

Memory

Location

ST12:0

ST12:1

ST12:2

ST12:3

ST12:4

ST12:5

Symbol

MSG_SEND

VARIABLE

PRE_TEXT

TEXT

F3_F4_F5

F6_B123

ST12:6 CHECKSUM

Description

The message which is built by the PLC and is actually sent out to the DL50 through CH0

The converted integer sample variable being appended to the message

The duplex protocol control byte (Field 1) and color code

(F11JC and F21JC only)

The message text

Fields 3, 4, and 5 of the duplex protocol

Field 3 determines the slave address

Field 4 determines the line number

Field 5 is \OD to produce a carriage return

The three bytes of field 6 of the duplex protocol. This dield controls the display mode, speed, and relay for each message.

Use the Duplex Field 6 Worksheet to determine hex values for desired display operation.

Dummy checksum bytes appended to the end of the message.

Their actual value is not important, since the checksum checking must be disabled on the DL50.

(Note: These bytes MUST NOT equal 13 or 18 decimal.)

6–23

Chapter 6

Slave Mode Operation / Examples

The contents of these strings must be assigned using the PLC off-line programming software (6200). Control code values are entered into the strings by using a forward slash followed by two hexadecimal digits. See

Appendix B, which has hexadecimal values for all ASCII and extended

ASCII characters.

Table 6.H

Strings Representing Control Code Values for This Example

Address LEN STRING TEXT

ST12:0 19 \02\19Speed 25\FF\01\0D\80\88\80\00\00\00

ST12:1 2 25

ST12:2 2 \02\19

ST12:3 6 Speed

ST12:4 3 \FF\01\0D

ST12:5 3 \80\88\80

ST12:6 3 \00\00\00

Messages and attributes are changed by changing the strings or by having the

PLC append different pre-determined string numbers to the MSG_SEND string. The hex values for Field 6 can be calculated using the worksheet found in Appendix G.

Ladder Logic

The ladder logic builds a string from all the parts and sends it out to the

DL50 via channel 0. Messages sent to the DL50 by the PLC must observe the required inter-message delays described in Table 5.F.

Note: Use a timer to avoid sending continuous messages.

Table 6.I

Ladder Diagram: Channel 0 Duplex Example

Rung 2:0

A free running timer used to trigger a variable counter and create a delay for message timing.

| T4:0 +TON–––––––––––––––+ |

+––]/[–––––––––––––––––––––––––––––––––––––––––––––––+TIMER ON DELAY +–(EN)–+

| DN |Timer T4:0| |

| |Time base 0.01+–(DN) |

| |Preset 100| |

| |Accum 33| |

| +––––––––––––––––––+ |

Rung 2:1

A counter is used to simulate a changing variable value.

| T4:0 +CTU–––––––––––––––+ |

+––] [–––––––––––––––––––––––––––––––––––––––––––––––+COUNT UP +–(CU)–+

| DN |Counter C5:0| |

| |Preset 99+–(DN) |

| |Accum 25| |

| +––––––––––––––––––+ |

6–24

Chapter 6

Slave Mode Operation / Examples

Rung 2:2

Creation of output string for DL50. Message sending is initiated by discrete input I:001/00 and controlled by the delay timer.

First the variable is converted from an integer to an ASCII string. (AIC)

Next the output string is assembled from the separate parts. (ACN)

Finally the output string is sent out to the DL50 through CH0. (AWT)

| I:001 T4:0 +AIC–––––––––––––––––––––––––+ |

+––] [–––] [––––––––––––––––––––––––––––––––––++INTEGER TO STRING CONVERSION++–+

| 00 DN ||Source C5:0.ACC|| |

| || 25|| |

| ||Destination VARIABLE|| |

| |+––––––––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A PRE_TEXT|| |

| | |Source B TEXT|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B VARIABLE|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B F3_F4_F5|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B F6_B123|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| | +ACN––––––––––––––––––––+| |

| +–––––+STRING CONCATENATE ++ |

| | |Source A MSG_SEND|| |

| | |Source B CHECKSUM|| |

| | |Destination MSG_SEND|| |

| | +–––––––––––––––––––––––+| |

| |+AWT––––––––––––––––––––+ | |

| ++ASCII WRITE +–(EN)+ |

| |Channel 0| |

| |Source MSG_SEND+–(DN) |

| |Control R6:0| |

| |String length 0+–(ER) |

| |Characters sent 19| |

| +–––––––––––––––––––––––+ |

Rung 2:3

The counter is reset when it is done.

| C5:0 C5:0 |

| DN |

Rung 2:4

| |

6–25

Chapter 6

Slave Mode Operation / Examples

1746-BAS Duplex Example

The following example demonstrates how a 1746-BAS SLC Basic Module can be used to trigger messages on a DL50 display running in Duplex mode.

This example prompts the user to enter a message along with its display attributes. The basic program calculates the control bytes, calculates the checksum of the packet, and sends the final packet out to the DL50 through its PRT2 serial port.

Port Setup

The MODE statement in line 10 sets the Basic Module’s port 2 to 9600 baud.

If the DL50 is not set at 9600 baud, this statement must be changed to match the DL50 baud rate.

This Basic program can use either RS232 or RS485 communications. The

Basic Module’s port type can be configured using the jumpers on the

1746-BAS module. Refer to the Basic Module Design and Integration

Manual (Pub. #1746-ND005) for more information on the port configuration.

Program Variables

Table 6.J lists the variables which control the messages being sent to the

DL50 by the Basic Module. These can be changed to obtain the desired message attributes.

First the message text is stored in string $(0) and the attribute strings are set to the desired values. Next the subroutine starting on line 5000 is called. This subroutine calculates the control bytes and the checksum, then sends the message out in the proper duplex packet form.

6–26

Chapter 6

Slave Mode Operation / Examples

Table 6.J

Duplex.BAS Variables List

$(0) TEXT

String Location of Message Text

CTBT

Control Byte

VALUE

FUNCTION

Append to buffer

DSPEED

Display Speed

VALUE

Append to buffer and display

Clear line(s). Send no F2.

Abandon running message and reset buffer

Initialize for bootstrap

FUNCTION

Fastest

Fast

Slow

Slowest

HEIGHT

Character Height

VALUE

FUNCTION

2.1 inch

4.8 inch

LINO

Line Number

VALUE

3, 4

MDE

Display Mode

0-22

RELAY

Relay Status

VALUE

CLR

Color Code

VALUE

FUNCTION

Line 1

Line 2

Reserved

Clear all lines

Decimal

FUNCTION

Off

COLOR

Red

Amber

Green

6–27

Chapter 6

Slave Mode Operation / Examples

DL50 Response Variables

If the message is sent to a slave address other than 255, the DL50 will send back a reply packet. The subroutine which starts on line 5900 stores these reply bytes into the integer array RESP() and prints them to the console device.

Figure 6.5

Basic Program: To Trigger Messages on a DL50 Display

110

120

130

140

150

160

170

180

190

200

4999

5000

5010

5020

5030

100

5130

5140

5150

5200

5210

5220

5230

5240

5250

5040

5050

5060

5070

5080

5100

5110

5120

REM DL50 DUPLEX FOR 1746-BAS

MODE(PRT2,9600,N,8,,,)

STRING 3000,254

CTBT = 2 :REM DEFAULT CONTROL BYTE

SLADD = 255 :REM DEFAULT SLAVE ADDRESS

TD = 10

LINO = 1

DSPEED = 0

MDE = 0

:REM DEFAULT TIME DELAY

:REM DEFAULT LINE NUMBER

:REM DEFAULT DISPLAY SPEED

:REM DEFAULT DISPLAY MODE

RELAY = 0

HEIGHT = 0

:REM DEFAULT RELAY MODE

:REM DEFAULT CHARACTER HEIGHT

CLR = 0 :REM DEFAULT COLOR CODE

TMOUT = 100 :REM DEFAULT TIMEOUT

RTMOUT = 100 :REM RESPONSE TIMEOUT

REM *************START USER PROGRAM

INPUT “ENTER MESSAGE TEXT”$(0)

INPUT “ENTER DISPLAY MODE”MDE

INPUT “ENTER RELAY STATUS”RELAY

INPUT “ENTER LINE NUMBER”LINO

INPUT “ENTER HEIGHT CODE”HEIGHT

INPUT “ENTER COLOR CODE”CLR

INPUT “ENTER DISP SPEED”DSPEED

GOSUB 5000 :REM SEND MESSAGE

GOTO 110

END

REM *************END USER PROGRAM

REM CREATE AND SEND OUTPUT ROUTINE

GOSUB 5100

GOSUB 5200

GOSUB 5300

:REM ASSIGN FIELD 6 BYTE 1

:REM ASSIGN FIELD 6 BYTE 2

:REM ASSIGN FIELD 6 BYTE 3

GOSUB 5400

GOSUB 5700

GOSUB 5900

RETURN

END

REM ASSIGN FIELD 6 BYTE 1

SPV=2**5*DSPEED

MV=MDE

:REM CALCULATE CHECKSUM

:REM SEND OUTPUT

:REM GET DL50 RESPONSE

F6=128+SPV+MV

RETURN

END

REM ASSIGN FIELD 6 BYTE 2

RLV = 2**6*RELAY

HTV = 2**3*HEIGHT

F62=128+RLV+HTV

RETURN

END

(More on next page)

6–28

Chapter 6

Slave Mode Operation / Examples

5805

5810

5820

5830

5900

5910

5920

5930

5940

5950

5710

5720

5730

5740

5750

5760

5770

5800

5960

5970

5980

5990

6000

6010

6020

6030

6040

6050

6060

5450

5460

5470

5480

5490

5500

5510

5520

5530

5540

5550

5560

5570

5580

5700

5300

5310

5320

5330

5400

5410

5420

5430

REM ASSIGN FIELD 6 BYTE 3

F63=129

RETURN

END

REM CHECKSUM CALCULATION

TCSUM=0:CHD=0:CSUM=0

PUSH 0

CALL 68

:REM GET LENGTH $(0)

BAD=0

IF SL=0 THEN GOTO 5500

FOR POSIT = 1 TO SL STEP 1

TCSUM=TCSUM+ASC($(0),POSIT)

NEXT POSIT

CSUM=CTBT+CLR+24+TCSUM+SLADD+LINO

CSUM=CSUM+13+F6+F62+F63

CHH=INT(CSUM/256)

CHL=CSUM–(256*CHH)

IF CHL=13 .OR. CHL=18 THEN CHD=1:BAD=1

IF CHH=13 .OR. CHH=18 THEN CHD=CHD+127:BAD=1

IF BAD=1 THEN GOTO 5420

RETURN

END

REM SEND OUTPUT SUBROUTINE

PRINT# CHR(CTBT),CHR(CLR+24),$(0),

PRINT# CHR(SLADD),CHR(LINO),CHR(13),

PRINT# CHR(F6),CHR(F62),CHR(F63),

PRINT# CHR(CHD),CHR(CHH),CHR(CHL),

DLY=TMOUT:GOSUB 5800

RETURN

:REM TIME DELAY

END

REM TIME DELAY SUBROUTINE

FOR I = 1 TO DLY

NEXT I

RETURN

END

REM GET DL50 RESPONSE

REM WAIT FOR DL50 RESPONSE

IF SLADD=255 THEN RETURN

J = 0

PUSH1:CALL 36 :

POP BL

REM GET INPUT BUFFER LENGTH

J = J + 1

IF J > RTMOUT THEN GOTO 6030

IF BL < 5 THEN GOTO 5940 ELSE 5990

FOR I = 1 TO BL STEP 1

RESP(I) = GET#

PRINT RESP(I)

NEXT I

PUSH 1 :REM CLEAR INPUT BUFFER

CALL 37

RETURN

END

6–29

Chapter Objectives

Bootstrap Mode

How to Tell if Firmware Is Corrupted

A–B

Chapter

Bootstrap Mode

This chapter describes how to operate the DL50 in the bootstrap mode. The bootstrap mode allows the DL50 to receive firmware revisions.

The bootstrap mode is entered by sending a Ctrl-L (Decimal 12) control byte as described in Table 5.B (Simplex Protocol) or Table 5.G (Duplex Protocol).

Use the bootstrap mode to update or correct any anomalies in the DL50 firmware.

The following is required to update the DL50 firmware:

•

A personal computer with DOS 3.0 or greater and an RS-232 port.

•

A firmware update kit from Allen-Bradley (Catalog No. 2706–NR4) which will contain a diskette and an instruction sheet.

•

The addresses of all slave devices on the RS-485 network (if used).

•

If there are devices on a network that have the same slave address, you will need the serial numbers of the devices.

•

If the firmware updates are done through the RS-485 port, you will need an RS-485 to RS-232 converter.

If the DL50s on the link are driven by another master (such as a DL20,

DL40, or other computer), then the master must be disabled before the firmware update can occur.

Upon power up, the DL50 performs a self test as described in Chapter 3. If the DL50 fails the Firmware Checksum test, the DL50 will alternately display the following two messages:

BAD CODE CHECKSUM

Waiting for host . . .

Slave Addr: AAA

Sub-Addr: SSSSSSSSSS

Where: AAA = three digit slave address

SSSSSSSSSS = DL50 Serial Number

At this point, the DL50 will remain idle waiting for the host to send a bootstrap command.

7–1

Chapter 7

Bootstrap Mode

Updating Firmware

Note: If operated under normal operating conditions, it is unlikely that the

DL50 firmware will be corrupted.

The instruction sheet accompanying the firmware diskette provides complete instructions on updating the DL50 firmware. The firmware diskette is an easy-to-use menu driven package. You do not require any previous programming experience to update the firmware.

7–2

A–B

Chapter

Troubleshooting and Maintenance

Chapter Objectives

This chapter describes how to identify the most common problems that may occur when operating DL50 displays. This chapter describes how to use the diagnostics mode and circuit board LEDs as an aid in troubleshooting.

This chapter also provides instructions on cleaning the display window.

Troubleshooting Chart

Table 8.A

Troubleshooting

Problem

DL50 does not power-up.

DL50 does not display messages properly or no messages are displayed.

Display characters are not proper size.

Probable Cause(s)

1. Power source not providing power.

2. Power source is not correctly attached to

DL50.

3. Blown fuse.

Corrective Action(s)

1. Verify presence of 100-240 VAC, 50-60

Hz.

2. Verify power connections as shown in

Chapter 4.

3. Replace fuse.

4. Replace power supply as described in this chapter.

4. Defective power supply (refer to Using

LED Indicators and Diagnostic Mode).

1. Communications lines are not properly connected.

2. DL50 is not properly configured.

3. DL50 was not restarted after configuration changes.

4. Incorrect protocol used.

5. Improper message format.

6. Faulty processor board, display board, or power supply.

7. Incorrect jumper setting.

8. No Ctrl–R command sent.

1. Line number is set incorrectly.

2. Improper DIP switch setting for character height.

1. Verify communication line connections as shown in Chapter 4.

2. Verify the DIP switch settings as described in Chapter 3.

3. Cycle power to the DL50 or press the

Restart switch.

4. Verify that your protocol matches the DIP switch setting.

5. Make sure your messages are properly formatted as described in Chapter 5. Use sample messages provided in Chapter 6 as a means of testing the display.

6. Check status of circuit board LEDs as described in next section of this chapter.

7. Set J-1 on processor board to the position indicated in the diagram on the inside back cover of the manual.

8. In duplex mode, send Ctrl-R before each new data packet.

1. Verify that correct line number is provided, refer to Chapter 5.

2. Verify character size DIP switch setting, refer to Chapter 3.

8–1

Chapter 8

Troubleshooting and Maintenance

Troubleshooting

(Continued)

Table 8.A

Troubleshooting (cont’d)

Messages

for host

“BAD CODE CHECKSUM Waiting

” and“

Slave Addr: XXX

” are displayed alternately.

Problem

Displayed messages are not full brightness.

Sections of messages are not displayed.

Large text message on a Catalog No.

2706-F11J, -F11JC DL50 from a DL20 / DL40 master is incomplete.

No message or long delay before large text message from a DL20 / DL40 master is displayed on a Catalog No. 2706-F11J, -F11JC

DL50.

Probable Cause(s)

1. DL50 has entered reduced brightness mode. Refer to Chapter 2 for a description of this mode.

2. Dirty display window.

1. Corrupted firmware.

2. Dipswitch S3-8 set incorrectly.

1. Loose connections.

2. Faulty display board.

1. Wait time on master is insufficient for a complete scroll.

2. Scroll attribute of DL20/DL40 is set to

YES.

1. Scroll attribute of DL20/DL40 is set to

YES.

Corrective Action(s)

1. Check that the ambient temperature is within specification provided in Chapter 10.

Lower ambient temperature if possible.

2. Clean window as described in this chapter.

1. Use bootstrap mode and firmware diskette to re-install firmware. Refer to Chapter 7 for instructions.

2. Set dipswitch S3-8 to OFF position.

1. Use the wiring diagrams in Appendix F to check for loose connections.

2. Use the display test to check the operation of the LEDs. Have qualified service personnel replace faulty display boards. Refer to Table 8.B.

1. Set master wait time for at least 4 seconds.

2. Turn off scroll attribute.

1. Turn off scroll attribute.

8–2

Using LED Indicators and Diagnostic Mode

Chapter 8

Troubleshooting and Maintenance

To aid in troubleshooting, LED indicators are provided on the Power Supply

Board and Processor Board (refer to Figure 8.1). Use the diagnostics mode to further isolate problems.

Figure 8.1

Fault Isolation LEDs

AC Power LED

RESET

DC Power LEDs

The Processor Board has two LEDs indicating that the proper DC power is applied to the board. The Processor Board also has an LED indicating that

AC power is applied. Use these LEDs in conjunction with the diagnostic mode to isolate faulty components.

8–3

8–4

Chapter 8

Troubleshooting and Maintenance

The general guidelines for using the LEDs to isolate faults are:

1. If the DL50 appears to have a fault or if the STATUS LED on the front panel is flashing, the DL50 should be opened for diagnostics.

ATTENTION:

Disconnect power before servicing. Failure to follow this warning could result in electrical shock.

Loosen the screws securing the front cover latches of the DL50. There are

6 door latches on the small display (Catalog No. 2706-F11J, -F11JC) and

10 latches on the large display (Catalog No. 2706-F21J, -F21JC).

Note: Loosen, do not remove, screws to turn latches.

ATTENTION:

The next step allows the front cover to open downward. Make sure there is adequate clearance. Failure to provide proper clearance may cause damage to the display.

Carefully turn the latches away from the door. After all of the latches have been turned, the front cover can be lowered.

2. Set the Mode Select DIP switches to select Diagnostics (refer to

Figure 3.2, DIP switch S2-7 ON). Press the RESET button or cycle the power. Observe the front panel display.

In the diagnostics mode, the DL50 will run the following tests:

The DL50 will continuously repeat the diagnostic tests until a different operating mode is selected (DIP switches) and the RESET button is pressed or power is cycled.

Chapter 8

Troubleshooting and Maintenance

As each test is being made, the DL50 displays the name of the test. After each test the DL50 displays the results. The results are also sent out to the

RS-232 port.

P Confidence Test

This test checks the ability to read/write to the processor’s internal registers.

If this test fails, the processor board needs replacement. Refer to

Replacement Parts List, Table 8.B.

RAM Test

This test writes to RAM and verifies the write. If this test fails, the processor board needs replacement. Refer to Replacement Parts List, Table 8.B.

ROM Test

Performs a checksum and compares the checksum against the stored checksum. If this test fails, use the bootstrap mode to reload firmware.

Processor Board Power Test

Verifies that the proper voltages are present at the processor board. Refer to next section for instructions on how to use the diagnostic LEDs to verify correct voltages at the processor board.

Serial Test

In this test the DL50 prompts the user to enter text from a terminal. Any text received within 10 seconds is displayed on the DL50. After 10 seconds, the test is terminated. If this test fails, check communications connections.

Display Test

This test displays test patterns. Use this test to isolate faulty display boards.

Faulty red display boards can be replaced, refer to Replacement Parts List, see Table 8.B. Faulty tricolor displays must be returned to the factory for repair.

8–5

Chapter 8

Troubleshooting and Maintenance

3. Observe the diagnostic LEDs (Figure 8.1). If both the AC and DC indicators are on, then the display should be cycling through diagnostic tests. During the display test, the DL50 will display patterns of scrolling both horizontally and vertically. Inspect each display board for faulty

LEDs (continuously in an ON or OFF state).

•

If faulty LEDs are detected, the display board needs to be replaced.

Refer to Replacement Parts List in this chapter.

•

If nothing is displayed, then either the connection from the processor board to the display board is faulty or the processor board is faulty.

Check connections. Check the output of the processor board by connecting a dumb terminal to the RS-232 port. If no text is displayed on the dumb terminal screen, the processor board needs to be replaced.

Refer to Replacement Parts List, Table 8.B.

4. If the AC LED is On and the DC LED(s) are Off, check the AC power fuse. (See Figure 8.2 for the location of this fuse.) If the fuse is ok and there is power at the AC input of the power supply, then either the LED on the processor board or the power supply is faulty. Use a voltmeter to verify the presence of +5V DC on the output of the power supply(s). If

+5V DC is not present, the power supply is faulty. If +5V DC is present, the processor board is faulty. Refer to Replacement Parts List, Table 8.B.

5. If the AC LED is Off, there is either an incorrect supply voltage or a defective power supply. Measure the voltage at the AC input terminal. If the proper AC voltage is present and the fuse is good (see Figure 8.2 for the location of this fuse), the power supply is defective. Refer to

Replacement Parts List, Table 8.B.

8–6

Fuse Replacement

Chapter 8

Troubleshooting and Maintenance

Figure 8.2 shows the location of the power input fuse.

Figure 8.2

Power Input Fuse Location

Fuse Holder

RESET

1. Disconnect power from the DL50.

ATTENTION:

Disconnect power before servicing. Failure to follow this warning could result in electrical shock.

2. Loosen the screws securing the front cover latches of the DL50. There are

6 door latches on the small displays (Catalog No. 2706-F11J, -F11JC) and

10 latches on the large display (Catalog No. 2706-F21J, -F21JC).

Note: Do not completely remove the screws securing the latches.

Loosening the screws allows the latches around the door to move freely but still keep the door secured

ATTENTION:

The next step allows the front cover to open downward. Make sure there is adequate clearance. Failure to provide proper clearance may cause damage to the display.

3. Carefully turn the latches away from the door. After all of the latches have been turned, the front cover can be lowered.

4. If possible, determine why the fuse has blown. Do not replace the fuse until the fault for the fuse blowing has been corrected.

8–7

Chapter 8

Troubleshooting and Maintenance

Replacement Parts List

5. Use a slotted screwdriver to remove end cap on the fuse holder.

Remove and install new fuse. The replacement fuse should be one of the following types:

European: 2.5A Type GMA

U.S.A: 2.5A Type AGC

6. Carefully lift the front cover up to its closed position and use one of the door latches to lock the cover in place. Tighten the screw securing the latch.

7. Apply power and verify the initial power-up display as described in

Chapter 3.

8. Lock the rest of the door latches and tighten all of the screws.

Table 8.B lists the replacement parts that are available for the DL50.

Table 8.B

Replacement Parts List

Replacement Part

Power Supply

Controller (Processor) Board

Display Board, Red

Power Input Fuse

Catalog Number

W7712881002

W7712881103

W7712881201

U.S.A: 2.5A Type AGC

European: 2.5A Type GMA

Only qualified service personnel should service the DL50. Replacement parts can be ordered through your local Allen-Bradley distributor.

8–8

Maintenance

Chapter 8

Troubleshooting and Maintenance

General Cleaning

Clean the display window as follows:

CAUTION:

Clean the display window as specified. Use of abrasive cleansers or solvents may damage the window. Do not scrub or use brushes.

1. Disconnect power from the display at the power source.

2. Using a clean sponge or a soft cloth, clean the window with a mild soap or detergent.

2. Dry the window with a chamois or moist cellulose sponge to prevent water spots.

Removing Paint and Grease

Fresh paint splashes and grease can easily be removed before drying by rubbing lightly with isopropyl alcohol. Afterward, a warm final wash should be made using a mild soap or detergent solution and ending with a thorough rinsing with clean water.

Removing Hairline Scratches

Scratches and minor abrasions can be removed or minimized by using a mild automobile polish. We recommend that you first test the product on a small area.

8–9

Specifications

A–B

Chapter

Specifications

Display Characters

Character Height

Character Set

Characters Per Line

Catalog No. 2706-F21J, -F21JC

Catalog No. 2706-F11J, -F11JC

Display Type

Catalog No. 2706-F11J, -F21J

Catalog No. 2706-F11JC, -F21JC

Display Color

Catalog No. 2706-F11J, -F21J

Catalog No. 2706-F11JC, -F21JC

Approximate Viewing Distance

2.1 inch characters

4.8 inch characters

2.1 inch (53.3 mm)

4.8 inch (121.9 mm)

Standard and Extended ASCII

Forty 2.1 inch characters, or Twenty 4.8 inch characters

Twenty 2.1 inch characters, or Ten 4.8 inch characters

Super-Brite Red LED Dome Matrix

Tri-Color LED Matrix

Red

Red, Green, Amber

100 feet (30.5 meters)

240 feet (73.2 meters)

Electrical

Input Voltage

Input Power

Catalog No. 2706-F11J

Catalog No. 2706-F11JC

Catalog No. 2706-F21J

Catalog No. 1706-F21JC

Fuse Type

U.S.A

European

Annunciation Relay

AC Resistive Load

DC Resistive Load

Communication Interface

Direct Connection-Single Point

Network Connection-Multi-Drop

95-120 or 190-240 Volts AC (auto-ranging), 50-60 Hz

105 VA

120 VA

190 VA

200 VA

2.5 Ampere, Type AGC

2.5 Ampere, Type GMA

3 Amperes at 240V AC

3 Amperes at 30 V DC

EIA-/TIA-232-E (RS-232)

EIA-485 (RS-485)

Communications

Protocols Simplex:

Duplex:

Baud Rate

Data Format

Electrical Interface

Simple serial ASCII protocol

Serial ASCII protocol with ACK/NAK response packet and optional checksum feature

300, 1200, 9600, 19200

8 data bits, no parity, one stop bit

RS-232 single point, RS-485 multi-drop

9–1

Chapter 9

Specifications

Environmental

Temperature Range

Operating

➀

Storage

Humidity

Shock

-40

to +60

to +85

C (+32

C (-40

to +140

to +185

5% to 95% non-condensing

Operating 15 G, Non-operating 30 G pulses

Vibration

Operating 1.0 G, Non-operating 2.5 G sinusoidal

Operating temperature range is based upon the absence of moisture and liquids.

Mechanical

Enclosure Type

Weight - Approximate

Catalog No. 2706-F11J, -F11JC

Catalog No. 2706-F21, -F21JC

UL listed for NEMA Type 12 & 13

Designed but not UL listed for NEMA Type 4 (indoor use only).

40 lbs. (18 kg)

75 lbs. (34 kg)

Certifications

UL Listing

LISTED

European Union Directive

UL Listed

UL Listed to Canadian safety standards

Electromagnetic Compatibility Directive (89/336/EEC)

EN 50081-2

Generic Emission Standard - Industrial Environment

EN 50082-2

Generic Immunity Standard - Industrial Environment

Low Voltage Directive (73/23/EEC)

EN60950 - Safety of Information Technology Equipment

9–2

Display Descriptions

A–B

Appendix

Display Descriptions

Display Mode

Hold

Flash

Roll Up

Roll Down

Roll Left

Roll Right

Roll In

Roll Out

Rotate

Wipe Down

Wipe Up

Wipe Left

Wipe Right

Wipe In

Wipe Out

Twinkle

Sparkle

Snow

Interlock

Switch

Function

Holds the message for several seconds.

Creates a flashing message, or (Ctrl-F) selects certain characters or words to flash while others remain stable.

Scrolls the message from right to left horizontally across the display. The Flash message attribute is ignored for rotated messages on tri-color displays.

Wipes a new message down over the current message.

Simplex Duplex

Yes

Rolls the previous message up off the display while rolling the new message up onto the display. Yes

Rolls the previous message down off the display while rolling the new message down onto the display.

Yes

Rolls the previous message off the display to the left while rolling the new message onto the display from the right.

Rolls the previous message off the display to the right while rolling the new message onto the display from the left.

Rolls the previous message off the display from the ends to the center, while rolling the new message onto the display from the ends.

Rolls the previous message off the display from the center to the ends, while rolling the new message onto the display from the center.

Yes

Wipes a new message up over the current message.

Wipes, from the left, a new message over the current message.

Wipes, from the right, a new message over the current message.

Wipes a new message over the current message from each end of the display towards the center.

Wipes a new message over the current message from the center of the display towards the ends.

Creates an oscillating twinkling effect.

Sparkles a new message over the current message.

Slides the characters of the message off the display in different directions. The first character slides up, the next down, etc.

Slides the message onto and across the display from right to left, one character at a time.

Writes a new message over the current message with a snowing effect.

Alternates rows of dots and interlocks the message into the center of the display from each side.

Yes

Slide Across

Spray On

Starburst On

Sprays the message onto and across the display from right to left.

Explodes the message in star-bursts onto the display.

Scroll

Continuously moves the messages to the top of the display.

Compress Scroll

Continuously moves and compresses the messages to the top of the display.

Yes

A–1

Appendix A

Display Descriptions

Table 5.C shows the codes used to enter these attributes for Simplex

Protocol, and Table 5.H shows those for Duplex Protocol. In addition, immediately after each of these tables there is a descriptive list of special control characters which can be used within a message. One of these special characters (Ctrl F) toggles Flash on and off, one (Ctrl R) clears the message buffer, and three of them (Ctrl X,Y and Z), in tricolor displays only, change the color.

A–2

ASCII Character Set

A–B

Appendix

B–1

Appendix B

ASCII Character Set

Extended ASCII Character Set

B–2

Catalog No. 2706–F11J,

–F11JC Dimensions

Dimensions

Dimensions: inches / (cm)

A–B

Appendix

CASE:

40.10

(101.8)

38.33

(97.4)

19.75

(48.7)

BRACKET:

1.75

(4.4)

CASE:

8.80

(22.3)

10.68

(27.1)

ANGLE

BRACKETS

4.86

(12.3)

10.68

(27.1)

3.81

(9.7)

C–1

Appendix C

Dimensions

Catalog No. 2706–F21J,

–F21JC Dimensions

Dimensions: inches / (cm)

CASE:

76.36

(194.0)

74.89

(188.2)

24.75

(62.9)

C–2

SECTION “A-A”

4.86

(12.3)

10.68

(27.1)

3.81

(9.7)

ANGLE

BRACKETS

10.68

(27.1)

Appendix C

Dimensions

Catalog No. 2706–NJ3

Dimensions

Adjustable Bracket. Dimensions: inches / (cm)

0.50

(1.3)

2.52

(6.4)

0.50

(1.3)

12.30

31.2

10.68

(27.1)

6.15

(15.6)

1.00

(2.5)

.81

(2.0)

4.77

(12.1)

1.87

(4.7)

0.87

(2.2)

10.68

(27.1)

12.30

31.2

6.15

(15.6)

C–3

A–B

Appendix

Serial Address Settings

Setting Serial Address

Set DIP switch #1 to the proper serial address using the following tables:

Address

00 OFF

OFF

Switch Selections

OFF

Address

32 OFF

OFF

Switch Selections

4 5

OFF OFF

OFF

D–1

Appendix D

Serial Address Settings

Address

64 OFF

OFF

Switch Selections

4 5

OFF OFF

OFF

OFF ON OFF OFF OFF OFF ON ON

OFF ON OFF OFF OFF ON OFF OFF

OFF ON OFF OFF OFF ON OFF ON

OFF ON OFF OFF OFF ON ON OFF

OFF ON OFF OFF OFF ON ON ON

OFF ON OFF OFF ON OFF OFF OFF

OFF ON OFF OFF ON OFF OFF ON

OFF ON OFF OFF ON OFF ON OFF

OFF ON OFF OFF ON OFF ON ON

OFF ON OFF OFF ON ON OFF OFF

OFF ON OFF OFF ON ON OFF ON

OFF ON OFF OFF ON ON ON OFF

OFF ON OFF OFF ON ON ON ON

OFF ON OFF ON OFF OFF OFF OFF

OFF ON OFF ON OFF OFF OFF ON

OFF ON OFF ON OFF OFF ON OFF

OFF ON OFF ON OFF OFF ON ON

OFF ON OFF ON OFF ON OFF OFF

OFF

113

114

115

116

109

110

111

112

105

106

107

108

101

102

103

104

117

118

119

124

125

126

127

120

121

122

123

Address

96 OFF

Switch Selections

4 5

OFF OFF

OFF

100

OFF ON ON OFF OFF OFF ON ON

OFF ON ON OFF OFF ON OFF OFF

OFF ON ON OFF OFF ON OFF ON

OFF ON ON OFF OFF ON ON OFF

OFF ON ON OFF OFF ON ON ON

OFF ON ON OFF ON OFF OFF OFF

OFF ON ON OFF ON OFF OFF ON

OFF ON ON OFF ON OFF ON OFF

OFF ON ON OFF ON OFF ON ON

OFF ON ON OFF ON ON OFF OFF

OFF ON ON OFF ON ON OFF ON

OFF ON ON OFF ON ON ON OFF

OFF ON ON OFF ON ON ON ON

OFF ON ON ON OFF OFF OFF OFF

OFF ON ON ON OFF OFF OFF ON

OFF ON ON ON OFF OFF ON OFF

OFF ON ON ON OFF OFF ON ON

OFF ON ON ON OFF ON OFF OFF

OFF

D–2

Appendix D

Serial Address Settings

145

146

147

148

141

142

143

144

137

138

139

140

133

134

135

136

149

150

151

156

157

158

159

152

153

154

155

Address

128 ON

OFF

Switch Selections

4 5

OFF OFF

OFF

129

130

OFF

131

132

ON OFF OFF OFF OFF OFF ON ON

ON OFF OFF OFF OFF ON OFF OFF

ON OFF OFF OFF OFF ON ON ON

ON OFF OFF OFF OFF ON ON OFF

ON OFF OFF OFF OFF ON ON ON

ON OFF OFF OFF ON OFF OFF OFF

ON OFF OFF OFF ON OFF OFF ON

ON OFF OFF OFF ON OFF ON OFF

ON OFF OFF OFF ON OFF ON ON

ON OFF OFF OFF ON ON OFF OFF

ON OFF OFF OFF ON ON OFF ON

ON OFF OFF OFF ON ON ON OFF

ON OFF OFF OFF ON ON ON ON

ON OFF OFF ON OFF OFF OFF OFF

ON OFF OFF ON OFF OFF OFF ON

ON OFF OFF ON OFF OFF ON OFF

ON OFF OFF ON OFF OFF ON ON

ON OFF OFF ON OFF ON OFF OFF

OFF

177

178

179

180

173

174

175

176

169

170

171

172

165

166

167

168

181

182

183

188

189

190

191

184

185

186

187

Address

160 ON

OFF

Switch Selections

4 5

OFF OFF

OFF

161

162

OFF

163

164

ON OFF ON OFF OFF OFF ON ON

ON OFF ON OFF OFF ON OFF OFF

ON OFF ON OFF OFF ON OFF ON

ON OFF ON OFF OFF ON ON OFF

ON OFF ON OFF OFF ON ON ON

ON OFF ON OFF ON OFF OFF OFF

ON OFF ON OFF ON OFF OFF ON

ON OFF ON OFF ON OFF ON OFF

ON OFF ON OFF ON OFF ON ON

ON OFF ON OFF ON ON OFF OFF

ON OFF ON OFF ON ON OFF ON

ON OFF ON OFF ON ON ON OFF

ON OFF ON OFF ON ON ON ON

ON OFF ON ON OFF OFF OFF OFF

ON OFF ON ON OFF OFF OFF ON

ON OFF ON ON OFF OFF ON OFF

ON OFF ON ON OFF OFF ON ON

ON OFF ON ON OFF ON OFF OFF

OFF

D–3

Appendix D

Serial Address Settings

209

210

211

212

205

206

207

208

201

202

203

204

197

198

199

200

213

214

215

220

221

222

223

216

217

218

219

Address

192 ON

OFF

Switch Selections

4 5

OFF OFF

OFF

193

194

OFF

195

196

ON ON OFF OFF OFF OFF ON ON

ON ON OFF OFF OFF ON OFF OFF

ON ON OFF OFF OFF ON OFF ON

ON ON OFF OFF OFF ON ON OFF

ON ON OFF OFF OFF ON ON ON

ON ON OFF OFF ON OFF OFF OFF

ON ON OFF OFF ON OFF OFF ON

ON ON OFF OFF ON OFF ON OFF

ON ON OFF OFF ON OFF ON ON

ON ON OFF OFF ON ON OFF OFF

ON ON OFF OFF ON ON OFF ON

ON ON OFF OFF ON ON ON OFF

ON ON OFF OFF ON ON ON ON

ON ON OFF ON OFF OFF OFF OFF

ON ON OFF ON OFF OFF OFF ON

ON ON OFF ON OFF OFF ON OFF

ON ON OFF ON OFF OFF ON ON

ON ON OFF ON OFF ON OFF OFF

OFF

241

242

243

244

237

238

239

240

233

234

235

236

229

230

231

232

245

246

247

252

253

254

255

248

249

250

251

Address

224 ON

Switch Selections

4 5

OFF OFF

OFF

225

226

OFF

227

228

ON ON ON OFF OFF OFF ON ON

ON ON ON OFF OFF ON OFF OFF

ON ON ON OFF OFF ON OFF ON

ON ON ON OFF OFF ON ON OFF

ON ON ON OFF OFF ON ON ON

ON ON ON OFF ON OFF OFF OFF

ON ON ON OFF ON OFF OFF ON

ON ON ON OFF ON OFF ON OFF

ON ON ON OFF ON OFF ON ON

ON ON ON OFF ON ON OFF OFF

ON ON ON OFF ON ON OFF ON

ON ON ON OFF ON ON ON OFF

ON ON ON OFF ON ON ON ON

ON ON ON ON OFF OFF OFF OFF

ON ON ON ON OFF OFF OFF ON

ON ON ON ON OFF OFF ON OFF

ON ON ON ON OFF OFF ON ON

ON ON ON ON OFF ON OFF OFF

OFF

D–4

A–B

Appendix

Internal Wiring Diagrams

Catalog No. 2706–F11J, –F11JC

Use the following diagram as an aid in troubleshooting.

ÎÎ Î Î

Î Î Î Î Î

Î Î

Î Î Î Î Î

E–1

Appendix E

Internal Wiring Diagrams

Catalog No. 2706–F21J, –F21JC

Use the following diagram as an aid in troubleshooting.

ÎÎ

Î ÎÎ

Î Î Î

Î Î Î Î

P8/ P12

WIRE #9 WIRE #10

E–2

A–B

Appendix

Checksum Calculations

Checksum Description

The checksum bytes verify the transmission of data when the DL50 is in the duplex mode. There are three bytes, the first byte is a dummy byte and the other two are checksum bytes. If either of the two checksum bytes contain a value equivalent to a CR (decimal 13) or DC2 (decimal 18), the content of the dummy byte is adjusted to alter the value of the checksum. The dummy byte is adjusted by:

•

Adding a value of 1 if the least significant checksum byte = 13 or 18 (decimal)

•

Adding a value of 128 or 255 (decimal) if the most significant byte = 13 or 18 (decimal)

Checksum BASIC Program

This example calculates the checksum bytes for Example #2 (using Duplex

Protocol) on page 6.3. Modify this program to calculate checksums for other messages.

1 REM Initialize constants:

2 True=1:False=0

10 REM:

11 REM:

Example program to calculate the checksum for a message packet to be sent to the DL50

20 REM

30 MSG$=CHR$(2)+“Motor ON”

31 REM

32 REM

<ctrl>B + Message_String

The address=255, Line No.=1, Message Attributes = 165,200,128

33 REM

34 REM

The dummy byte initially = 0

35 DUMMY = 0

36 TMP1$=MSG$+CHR$(255)+CHR$(1)+CHR$(13)+CHR$(165)+CHR$(200)+CHR$(128)+CHR$(DUMMY)

38 REM

39 REM Get the length of the message packet string, TMP1$

40 L=LEN(TMP1$)

50 REM

55 BCNT=0

Start with 0, and add the ASCII value of each character in the string

60 FOR P=1 to L

70 BCNT=BCNT+ASC(MID$(TMP1$, P, 1))

75 NEXT P

80 REM Separate out the most and least significant bytes

85 MSB%=(BCNT–(BCNT MOD 256))/256

90 LSB%=BCNT AND 255

92 REM

93 BAD=FALSE

Look for bad checksum bytes (values 13 or 18)

95 IF (LSB%=13) OR (LSB%=18) THEN DUMMY = (DUMMY+1) MOD 255:BAD=TRUE

96 IF (MSB%=13) OR (MSB$=18) THEN DUMMY = (DUMMY + 127) MOD 256:BAD=TRUE

99 REM lines 99 and 100 for program test only

100 PRINT “MSB=”;MSB%,“LSB=”;LSB%,“dummy=”;DUMMY

101 IF BAD GOTO 36

199 REM lines 199 and 200 for program test only

200 PRINT “Two Byte Checksum=”;BCNT

F–1

Appendix F

Checksum Calculations

Checksum Program for

SLC BASIC Module

The following subroutine calculates the checksum of a message for a

1746-BAS SLC BASIC module. The message text is stored in string $(0) and the duplex control fields are in the variables F1, F3, F4, F6, F62, and F63.

5400

5401

5402

5403

5410

5420

5430

5450

5460

5470

5480

5490

5500

5510

5520

5530

5540

5550

5560

5570

5580

REM ** CHECKSUM CALCULATION FOR 1746-BAS

REM ** WHERE MESSAGE TEXT IS IN STRING $(0)

REM ** AND F1, F3, F4, F6, F62, AND F63

REM ** ARE THE DUPLEX FIELD VALUES

TCSUM=0:CHD=0:CSUM=0

PUSH 0

CALL 68

:REM GET LENGTH $(0)

BAD=0

IF SL=0 THEN GOTO 5500

FOR POSIT = 1 TO SL STEP 1

TCSUM=TCSUM+ASC($(0),POSIT)

NEXT POSIT

CSUM=F1+TCSUM+F3+F4

CSUM=CSUM+13+F6+F62+F63

CHH=INT(CSUM/256)

CHL=CSUM-(256*CHH)

IF CHL=13 .OR. CHL=18 THEN CHD=1:BAD=1

IF CHH=13 .OR. CHH=18 THEN CHD=CHD+127:BAD=1

IF BAD=1 THEN GOTO 5420

RETURN

END

F–2

A–B

Appendix

CHARACTER ATTRIBUTE WORKSHEET

DUPLEX FIELD 6 CALCULATION

Enter the values corresponding to the desired attributes on the spaces to the right.

Add the decimal values as indicated and then convert to hexadecimal using the hexadecimal chart in Appendix B.

The hexadecimal values represent the control value digits entered into the PLC.

DESCRIPTION OPTION

BYTE 1: Display Mode and Display Speed

A) DISPLAY MODE

B) DISPLAY SPEED Fastest

Fast

Slow

Slowest

VALUE

0 TO 22

128

160

192

224

Field 6 Byte 1 (Decimal):

VALUE

Field 6 Byte 1 (Hex):

DESCRIPTION OPTION

BYTE 2: Text Height and Relay Status

E) CHARACTER HEIGHT

F) RELAY STATUS

2.1”

4.8”

OFF

192

128

Field 6 Byte 2 (Decimal):

Field 6 Byte 2 (Hex):

C: A + B

D: Hex(C)

G: E + F

H :Hex(G)

BYTE 3: Reserved for Future Enhancements

Field 6 Byte 3 (Hex): 80

(Always)

G-1

Overview

EU Directive Compliance

A–B

Appendix

European Union Directive Compliance

If this product or package is marked with the

mark, the product is certified for European Union Directive Compliance. This appendix contains the following sections.

•

European Union Directive Compliance

•

Intended Use of the Product

•

Product Bulletin Catalog Numbers

•

Installation Requirements

If the Dataliner DL50 Message Display is installed within the European

Economic Area (EEA), the following regulations apply.

EMC Directive

This apparatus is tested to meet Council Directive

89/336/ECElectromagnetic Compatibility (EMC) using the following standards

•

EN 50081-2

EMC – Generic Emission Standard, Part 2 Industrial Environment

•

EN 50082-2

EMC – Generic Immunity Standard, Part 2, Industrial Environment

LVD Directive

This apparatus is tested to meet Council Directive 73/23/EEC with amendments, including 93/68/EEC Low Voltage (LVD) using the following standard:

•

EN 60950 Safety of Information Technology Equipment

H-1

Appendix H

EU Directive Compliance

Applicable Equipment

Intended Use of the Product

The EN 60950 European Norme standard scope is defined as follows:

This standard is applicable to information technology equipment, including electrical business equipment, and associated equipment with a rated voltage not exceeding 600V.

This standard specifies requirements to insure the safety of the operator and layman who may come in contact with the unit, and where specifically stated for, service personnel.

This standard is intended to insure the safety of installed equipment, whether it consists of a system of interconnected units, or independent units, subject to installing, operating and maintaining the equipment in the manner prescribed by the manufacturer.

Examples of equipment which is within the scope of this standard include: visual display units, data terminal equipment, and data and text processing equipment.

Equipment complying with the relevant requirements of this standard is considered suitable for use with process control equipment, automatic test equipment, and similar systems requiring information processing facilities.

The products described in this manual are intended for use in an industrial environment.

According to the EMC standards, the factor which determines whether an apparatus is deemed to be “Industrial” or “Residential, Commercial, and

Light Industrial” is given in Clause 1 of EN 50081–2 as follows:

Apparatus covered by this standard is not intended for connection to a public mains network, but is intended to be connected to a power network supplied from a high– or medium–voltage transformer dedicated for the supply of an installation feeding a manufacturing or similar plant.

This product is intended for the use solely in an industrial environment as defined above. When installed in Europe, any other application is in contravention of European Union Directives, and a breach of those laws.

H-2

Appendix H

EU Directive Compliance

Catalog Number Listings

The following table indicates which Dataliner DL50 products comply with the EMC and LVD European Union directives.

Dataliner

DL50

2706-F11J

2706-F21J

2706-F21JC

2706-F11JC

Catalog Number Series

Revision

All Dataliner DL50 products of above listed Series/Revision letters and later comply with the required EU directives.

Installation Requirements

Dataliner DL50 installation requirements are specified in Chapter 4.

H-3

Glossary

A–B

A

ACK

An abbreviated term for Positive

Acknowledgement. A control code that indicates that the previous transmission block was received correctly.

address

A character or a group of characters that identifies a particular part of memory, or some source or destination for a data message.

Also, refers to a device or an item of data by its address.

ampere

A unit of current flow.

ASCII

The character set and code described in American National Standard Code for Information Interchange, ANSI

X3.4Ć1977. Each ASCII character is encoded with 8Ćbits including parity check.

C

checksum

A means of verifying the validity of transmitted data.

controller, programmable

Refer to programmable controller.

D

default value

A value that is provided for the user by the DL50. It can be set by the user by means of DIP switches.

digit

A single numeric character.

DIP switch

An acronym for Dual InĆline Package switch. A DIP switch is a circuit board mounted switch comprised of one or more individual selector switches.

DTE

An acronym for Data Terminal

Equipment. A DTE receives and processes transmitted data. The DL50 is considered a DTE device as are most terminals.

B

baud

A rate at which a transmission occurs, where one baud equals one bit per second.

binary

A base two numbering system.

bit

The smallest unit of information in the binary numbering system. A bit is represented by the digits 0 and 1.

buffer

A temporary storage area for messages or other data.

byte

A unit of data that contains 8 bits.

E

electrical noise

Electromagnetic interference. Any electromagnetic disturbance that interrupts, obstructs, or otherwise impairs the performance of electronic equipment.

Glossary–1

Glossary

Glossary–2

EEPROM

An acronym for Electrically Erasable

Programmable Read Only Memory.

An EEPROM is a device to store data, often firmware, which is read but not written to. It can be erased electrically and then reprogrammed when the firmware is updated.

F

firmware

A set of software commands that define the parameters of a system: the foundation on which application programs are built. Normally stored in an EEPROM.

H

hexadecimal

A base 16 numbering system.

M

master/slave

A communication link containing a masterdevice which controls slave devices. A masterstation can initiate communication; a slave device can only respond to commands.

multidrop

A term used to describe multiple devices linked by a communications network.

N

NAK

An abbreviated term for Negative

Acknowledgement. A control code that indicates the previous transmission block was not correctly received.

NEMA

An acronym for National Electrical

Manufacturers Association.

P

parity bit

A parity bit is added to a binary array to make the sum of all the bits always odd oreven, a fundamental transmission check.

port

An electrical connector through which communication signals are transferred between external devices and internal components.

programmable controller

A solid state device that controls industrial operations. The programmable controller contains instructions which specify how output devices operate in response to input signals.

prompt

A word or symbol that is displayed to inform the user that a response is required.

protocol

A set of conventions governing the format and timing of data between communication devices.

R

RAM

An acronym for Random Access

Memory. The data it contains can be read and written to very quickly.

Glossary

Turning power to the display off, then on; it is followed automatically by a check of all parts of the system.

The RESTART button does this automatically.

RS-485

An EIA standard that specifies electrical characteristics of balanced-voltage digital interface circuits in a multi-point link.

RS-232

An EIA standard that specifies electrical, mechanical, and functional characteristics for serial binary communications circuits in a point-to-point link (two devices only).

S

self-test

A description of hardware and firmware that monitors or tests its own operation and indicates any faults it can detect.

RS-422

An EIA standard that specifies electrical characteristics of balanced-voltage digital interface circuits in a point-to-point link (two devices only).

W

Glossary–3

AC Power

Connections, 4Ć10

Fuse Replacement, 8Ć7 to 8

LED, 8Ć3, 8Ć6

Location, 2Ć3

Routing Power Lines, 4Ć9

Safety, 4Ć10

Specifications, 9Ć1

Terminals, 2Ć4

ACK/NAK.

Duplex Protocol

Address

DIP Switch Settings, DĆ1 to 4

DIP Switch Table, 3Ć3

Duplex Protocol, 5Ć9

Global Send/Receive, 3Ć3

Illegal, 3Ć3

Simplex Protocol, 5Ć5

Annunciation Relay.

Relay, Alarm

ASCII

Character Set, BĆ1

Extended Set, BĆ2

ASCII I/O Module

Catalog Number, 4Ć21

Manual Catalog Number, 1Ć3

Protocols, 5Ć1

RS-232 Connections, 4Ć24

System Example, 2Ć8

Attention symbol, 1Ć2

Audience, 1Ć2

BASIC Module

Catalog Number, 4Ć21

Characteristics, 4Ć22

Manual Catalog Number, 1Ć3

Program Example, 6Ć14

Protocols, 5Ć1

RS-232 Connections, 4Ć22

System Example, 2Ć8

Baud Rate.

DIP Switches

Black Box.

Converter, RSĆ232 to RSĆ485

Bootstrap Mode, 7Ć1 to 2

Duplex Protocol, 5Ć9

Summary, 2Ć6

Brackets, Adjustable

Chain Suspension, 4Ć8

Dimensions, CĆ3

Surface Mounting, 4Ć4

Buffer.

Simplex Mode; Duplex Mode

Cable.

RSĆ232; RSĆ485

Certifications, 9Ć2

Chain Suspension, 4Ć5

Back to Back, 4Ć6 with Adjustable Brackets, 4Ć8

Character Height

Duplex, 5Ć12

Simplex.

DIP Switches

Characters

Size and Number, 2Ć2

Specifications, 9Ć1

Checksum

Calculating, FĆ1 to 2

DIP Switches, 3Ć6

Example Program, 6Ć28 to 29

Firmware, 7Ć1

Summary, 5Ć8

Cleaning Display Window, 8Ć9

Communications

Interface Specifications, 9Ć1

Protocols.

Simplex Protocol; Duplex Protocol

RSĆ232.

RSĆ232

RSĆ485.

RSĆ485

Serial.

Simplex Protocol; Duplex Protocol

Computers, Personal

Connections, 4Ć19

Converting RSĆ232 to RSĆ485.

Converter

Firmware Update, 7Ć1

System Example, 2Ć8

Configuration.

DIP Switches

Connections

AC Power.

AC Power

Overview, 2Ć3

Relay.

Relay, Alarm

RSĆ232.

RSĆ232

RSĆ485.

RSĆ485

Control Characters.

Display Attributes

Controllers, Programmable.

Programmable

Controllers

Conventions, 1Ć2

Converter, RSĆ232 to RSĆ485, 4Ć20, 4Ć23

CTS/RTS, 4Ć13

DC Power

LED, 8Ć3, 8Ć6

Troubleshooting, 8Ć5

Declaration of Conformity, European Installation

Requirements, HĆ1

Delay, Inter-Packet

DL40 Master, 6Ć10

Simplex Protocol, 5Ć7

DF1/ASCII Protocol Cartridge, Manual Catalog

Number, 1Ć3

DH-485 Protocol Cartridge, Manual Catalog

Number, 1Ć3

Diagnostic Mode

DIP Switches, 3Ć6

Summary, 2Ć6

Troubleshooting, 8Ć4 to 5

Dimensions

2706ĆF11J, ĆF11JC, 4Ć1, CĆ1

2706ĆF21J, ĆF21JC, 4Ć1, CĆ2

Adjustable Brackets, CĆ3

DIP Switches

Baud Rate, 3Ć2, 3Ć5

Character Height (Simplex Only), 3Ć2, 3Ć4 to 5

Checksum Enable/Disable, 3Ć6

Diagnostic Mode, 3Ć6, 8Ć4

Display Color Default, 3Ć6

Display Type (Factory Set), 3Ć2, 3Ć6

Locations, 2Ć3, 3Ć1

Operating Mode, 3Ć2

Protocol, 3Ć2

Slave Address, 3Ć2 to 3

Summary, 2Ć5, 3Ć2

Display Attributes, AĆ1 to 2

Duplex Protocol, 5Ć8, 5Ć10 to 13

Simplex Protocol (Optional), 5Ć3 to 4

Display Type.

DIP Switches

DL10, Manual Catalog Number, 1Ć3

DL20

Example Program, 6Ć6 to 7

Manual Catalog Number, 1Ć3

Protocols, 5Ć1

RS-232 Connections, 4Ć16, 4Ć18

RS-422 Connections, 4Ć16

Simplex Protocol, 3Ć4

System Example, 2Ć7

DL40

Example Program, 6Ć8 to 10

Manual Catalog Numbers, 1Ć3

Protocols, 5Ć1

RS-485 Connections, 4Ć16

Simplex Protocol, 3Ć4

System Example, 2Ć7

Duplex Protocol, 5Ć8 to 14

ACK/NAK, 5Ć14

Annunciation Relay.

Relay, Alarm

ASCII Text, 5Ć9

Bootstrap Mode.

Bootstrap Mode

Carriage Return Byte, 5Ć9

Character Height, 5Ć12

Checksum, 5Ć13, 5Ć14

Checksum Example, 6Ć28 to 29

Checksum, Calculating, FĆ1 to 2

Clearing Buffer, 5Ć11

Clearing Text, 5Ć9

Control Byte, 5Ć8

Control Characters.

Display Attributes

Display Mode, 5Ć10

Display Speed, 5Ć10

Example Program, 6Ć3

SLC BASIC Module, 6Ć26 to 27

Flashing Text.

Flashing Text

Global Send/Receive, 5Ć9

Handshake, 5Ć8

Hexadecimal Values Worksheet, GĆ1

Line Number, 5Ć9

Overriding a Display Message, 5Ć8

Response from DL50, 5Ć14

Slave Address.

Address

Summary, 3Ć4

Variables in a Message.

Variables

EU Directive Compliance, HĆ1 to 2

Features, 2Ć1

Firmware Updates, 7Ć1 to 2

Flashing Text

Duplex Protocol, 5Ć11

Example Program, 6Ć5

Simplex Protocol, 5Ć4

Flexible Interface Module

Catalog Number, 4Ć21

Example Program, 6Ć15 to 17

Manual Catalog Number, 1Ć3

Protocols, 5Ć1

RS-422 Connection, 4Ć25

System Example, 2Ć8

Fuse Replacement, 8Ć7 to 8

Grounding

DL50 System, 4Ć10

RS-485, 4Ć15

Handshake Byte, 5Ć8

Hexadecimal

ASCII Characters, BĆ1 to 2

Worksheet, GĆ1

LEDs

Overtemperature Indicator, 2Ć4

Status Indicators, 2Ć2, 2Ć4

Troubleshooting, 8Ć3 to 4, 8Ć6

Message Attributes.

See Display Attributes

Message Visibility.

See Viewing Distance

Mode

Bootstrap.

See Bootstrap Mode; Firmware

Diagnostic.

See Diagnostic Mode

Operating.

See DIP Switches

Reduced Brightness.

See Temperature

Slave.

See Slave Mode

Mounting

Chain Suspension, 4Ć5

Adjustable Brackets, 4Ć8

Back to Back, 4Ć6

Summary, 4Ć2

Surface, 4Ć2 with Adjustable Brackets, 4Ć4 with Angle Brackets, 4Ć3

Noise, Electrical

Preventing, 4Ć9

RS-232 System, 4Ć13

RS-485 System, 4Ć17

Peripheral Communications Module

Catalog Number, 4Ć21

Converting Output to RSĆ485.

See Converter

Manual Catalog Number, 1Ć3

Protocols, 5Ć1

RS-232 Connections, 4Ć23

System Example, 2Ć8

PLCĆ2, Catalog Number, 4Ć21

PLCĆ3, Catalog Number, 4Ć21

PLCĆ5

Catalog Number, 4Ć21

Example Program, 6Ć22 to 25

Channel 0, 6Ć18 to 21

Protocols, 5Ć1

Quick Reference Catalog Number, 1Ć3

System Example, 2Ć7

PLC-5 BASIC Module.

See BASIC Module

Powerup

Clear Residual Data, 5Ć4, 5Ć11

Self-Test Display, 3Ć8

Programmable Controllers.

See PLCĆ5; SLC 500

Programmable Controllers, Interfaces.

See ASCII

I/O Module; BASIC Module; Flexible InterĆ face Module; Peripheral Communications

Module; SLC 500 BASIC Module

Protocols

See also Duplex Protocol; Simplex Protocol

DIP Switches, 3Ć2

Summary, 3Ć4, 5Ć1

Relay, Alarm

Connections, 2Ć4, 4Ć11

Diagram, 4Ć11

Duplex Protocol, 5Ć12

Example Program, 6Ć4, 6Ć12 to 13

Location, 2Ć3

Simplex Protocol, 5Ć6

Specifications, 9Ć1

Replacement Parts, 8Ć8

Reset Button, 2Ć4

Diagram, 3Ć7

Location, 2Ć3

Troubleshooting, 8Ć4

RSĆ232

Cable Recommended, 4Ć13

Characteristics, 4Ć12

Connection Diagrams, 4Ć18, 4Ć19

Converter to RSĆ485.

See Converter

Personal Computers.

See Computers, Personal

Port Location, 2Ć3, 4Ć12

System Examples, 2Ć7 to 8

Terminals, 2Ć5, 4Ć12

RSĆ422

DL20, 4Ć16

Flexible Interface Module, 4Ć25, 6Ć15

RSĆ485

Cable Recommended, 4Ć15, 4Ć17

Characteristics, 4Ć14

Connection Diagrams, 4Ć15, 4Ć17

Port Location, 2Ć3

System Examples, 2Ć7 to 8

Terminals, 2Ć5, 4Ć14

Safety, AC Wiring.

See AC Power; Grounding

Simplex Protocol, 5Ć2 to 7

Annunciation Relay.

See Relay, Alarm

ASCII Text, 5Ć2

Clearing Buffer, 5Ć4

Clearing Text, 5Ć7

Control Byte, 5Ć2

Control Characters.

See Display Attributes

End of Message Signal, 5Ć6

Example Program, 6Ć2, 6Ć4, 6Ć5

DL20, 6Ć6 to 7

DL40, 6Ć8 to 10

Flashing Text.

See Flashing Text

Global Send/Receive, 5Ć5

Inter-Packet Delay, 5Ć7

Line Number, 5Ć5

Slave Address.

See Address

Special Control Characters, 5Ć4

Summary, 3Ć4

Variables in a Message.

See Variables

Slave, Address.

See Address

Slave Mode, 6Ć1 to 29

Summary, 2Ć6

SLC 5/03, 5/04, System Example, 2Ć7

SLC 500

Catalog Number, 4Ć21

Protocols, 5Ć1

SLC 500 BASIC Module

INSTALLATION / DIAGNOSTICS INFORMATION

RELAY

RATING: 3A @ 240 VAC RESISTIVE LOAD

3A @ 30 VDC RESISTIVE LOAD

RS-485 PORT

AC INPUT VOLTAGE: 95-120 / 190-240V AC

FREQUENCY: 50-60 Hz

TB1

L1 (HOT)

L2 (NEUTRAL)

E. GND

FUSE INFORMATION European: 2.5 A TYPE GMA

U.S.A.: 2.5 A TYPE AGC

TB2

NORMALLY OPEN

NORMALLY CLOSED

COMMON

TB3

WARNING: USE RELAY FOR ANUNCIATOR ONLY.

RS-232 PORT

WARNING: HIGH VOLTAGE

USE CAUTION

CONFIGURATION DIPSWITCH DEFINITIONS

S2 S3

WARNING: WHEN POWER IS REMOVED, THE

ANUNCIATOR WILL BE ENERGIZED IF NORMALLY

CLOSED OUTPUT IS USED.

TB4

NOTE: EARTH GROUND SHOULD BE CONNECTED TO CHASSIS

FIRST BEFORE GOING TO TB1.

–

EARTH GROUND

SHIELD

COMMON

TERMINATION

TRANSMIT

RECEIVE

GROUND

CONTROLLER BOARD

CONFIGURATION DIP SWITCHES

WARNING: TO AVOID RISK OF SHOCK, DISCONNECT TB1 AND

TB2 BEFORE ATTEMPTING TO SERVICE THE DISPLAY.

Allen-Bradley has been helping its customers improve productivity and quality for 90 years.

A-B designs, manufactures and supports a broad range of control and automation products worldwide. They include logic processors, power and motion control devices, man-machine interfaces and sensors. Allen-Bradley is a subsidiary of Rockwell International, one of the world’s leading technology companies.

With major offices worldwide.

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China, PRC

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Czech

Republic

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Italy

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World Headquarters, Allen-Bradley, 1201 South Second Street, Milwaukee, WI 53204 USA, Tel: (1) 414 382-2000 Fax: (1) 414 382-4444

Publication 2706-6.0 – February 1997 41061-021-01(A)

Key Features

High visibility message display (up to 240 feet)
RS-232 and RS-485 communications ports
Simplex and Duplex communications protocols
Relay output for turning on a lamp or audible alarm
Multiple mounting options (flush, back-to-back, chain suspension)

Frequently Answers and Questions

What is the operating temperature range for the Dataliner DL50 message display?

The DL50 can operate in ambient temperatures ranging from 32°F to 167°F (0°C to 75°C).

What are the different mounting methods for the Dataliner DL50 message display?

The DL50 can be mounted using flush surface mount, surface mount using optional adjustable brackets, back-to-back using adjustable brackets, and chain suspension.

What are the different communication protocols supported by the Dataliner DL50 message display?

The DL50 supports both Simplex and Duplex communication protocols.