Allen-Bradley SLC 500 BASIC User manual

Publication 1746-IN009B-EN-P - August 2005

Installation Instructions

SLC 500 BASIC and BASIC-T Modules

Catalog Numbers 1746-BAS and 1746-BAS-T

Inside . . .

For See Page

Important User Information 2

Hazardous Location Considerations 3

Environnements dangereux 3

About the BASIC and BASIC-T Modules 4

Before You Begin 5

Install the 1746-BAS Module and 1746-BAS-T

Module

Wire the PRT1 and PRT2 Communication Ports 13

Wire to the DH485 Port 18

Apply Power to your BASIC Module and

BASIC-T Modules

Configure the BASIC Module and BASIC-T

Module

Battery Replacement, Handling, Storage, and

Transportation (Cat. No. 1747-BA)

Specifications 24

Additional Resources 26

2SLC 500 BASIC and BASIC-T Modules

Publication 1746-IN009B-EN-P - August 2005

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 available from your local Rockwell Automation sales office or online at

http://www.literature.rockwellautomation.com) 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 Rockwell Automation, Inc. 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, Rockwell Automation, Inc. cannot

assume responsibility or liability for actual use based on the examples and diagrams.

No patent liability is assumed by Rockwell Automation, Inc. 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 Rockwell

Automation, Inc., is prohibited.

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

WARNING Identifies information about practices or circumstances that can cause an explosion in

a hazardous environment, which may lead to personal injury or death, property

damage, or economic loss.

IMPORTANT Identifies information that is critical for successful application and understanding of

the product.

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 a hazard and recognize the consequences.

SHOCK HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people

that dangerous voltage may be present.

BURN HAZARD

Labels may be located on or inside the equipment (e.g., drive or motor) to alert people

that surfaces may be dangerous temperatures.

SLC 500 BASIC and BASIC-T Modules 3

Publication 1746-IN009B-EN-P - August 2005

Hazardous Location Considerations

This equipment is suitable for use in Class I, Division 2, Groups A, B, C, D or

non-hazardous locations only. The following WARNING statement applies to use in

hazardous locations.

Environnements dangereux

Cet équipement est conçu pour être utilisé dans des environnements de Classe I,

Division 2, Groupes A, B, C, D ou non dangereux. La mise en garde suivante

s’applique à une utilisation dans des environnements dangereux.

ATTENTION WARNING: EXPLOSION HAZARD

Substitution of components may impair suitability for Class I,

Division 2.

Do not replace components or disconnect equipment unless

power has been switched off.

Do not connect or disconnect components unless power has been

switched off.

All wiring must comply with N.E.C. article 501, 502, 503, and/or

C.E.C. section 18-1J2 as appropriate.

ATTENTION AVERTISSEMENT: DANGER D’EXPLOSION

La substitution de composants peut rendre cet équipement

impropre à une utilisation en environnement de Classe 1, Division

Ne pas remplacer de composants ou déconnecter l'équipement

sans s'être assuré que l'alimentation est coupée.

Ne pas connecter ou déconnecter des composants sans s'être

assuré que l'alimentation est coupée.

4SLC 500 BASIC and BASIC-T Modules

Publication 1746-IN009B-EN-P - August 2005

About the BASIC and BASIC-T Modules

The BASIC module is a single-slot module that resides in a SLC 500 fixed or

modular controller chassis. The BASIC-T module is a higher speed version of the

BASIC module with identical hardware features, including two configurable serial

ports for RS-232/423, RS-422, and RS-485 communication with I/O devices.

Communication to an SLC 500 controller can take place across the 1746 I/O

backplane or on the DH485 network through the module’s DH485 port. Both

modules also feature 24K bytes of battery-backed RAM, optional 8K or 32K byte

non-volatile memory modules, and multiple LED indicators for operator interface.

The modules can be programmed using an ASCII terminal or a personal computer

equipped with 1747-PBASE BASIC development software

TIP The 1746-BAS module is compatible with the 1747-M1 and

1747-M2 memory modules.

The 1746-BAS module is also compatible with existing 1747-M3

and 1747-M4 memory modules. The 1747-M3 and 1747-M4

memory modules are no longer available for sale from Rockwell

Automation.

The 1746-BAS-T module is compatible with the 1771-DBMEM1

and 1771-DBMEM2 memory modules.

TIP Due to the high speed of the 1746-BAS-T module, existing

programs written for the 1746-BAS module may require

adjustment for identical operation using the 1746-BAS-T module.

SLC 500 BASIC and BASIC-T Modules 5

Publication 1746-IN009B-EN-P - August 2005

Before You Begin

Before you begin to install the BASIC module and BASIC-T module, you need to:

•identify the communication ports,

•locate the LED indicators, and

•set the module jumpers.

Identify the Communication Ports

There are three communication ports on the front of the BASIC module and

BASIC-T module. They are:

•PRT1

•PRT2

•DH485

The PRT1 port is used to interface the module with user devices. This port is a

serial port that accommodates RS-232/423, RS-422, and RS-485 communication

modes. Port PRT1 is capable of operating full-duplex at 300, 600, 1200, 2400, 4800,

9600, and 19200 bps.

The PRT2 port is used to interface the module with user devices or a modem using

DF1 protocol. This port is a serial port that accommodates RS-232/423, RS-422, and

RS-485 communication modes. Port PRT2 is capable of operating full-duplex at 300,

600, 1200, 2400, 4800, 9600, and 19200 bps.

The DH485 port is used to interface the module with the DH485 network. This port

is not isolated and cannot directly drive the DH485 network. You must use a

1747-AIC link coupler to link port DH485 with the DH485 network.

Refer to Figure 1 for the location of the communication ports.

Locate the LED Indicators

There are eight LED indicators on the front of the BASIC and BASIC-T modules.

These LED indicators are used for module diagnostics and status indication. Refer to

Figure 1 for the location of the LED indicators.

IMPORTANT When DF1 protocol is selected on port PRT2, DH485

communications is disabled.

6SLC 500 BASIC and BASIC-T Modules

Publication 1746-IN009B-EN-P - August 2005

Figure 1 Communication Ports and LED Indicators

LED Color Status Indication

ACT Green ON The module is receiving power from the backplane and is

executing BASIC code.

Flashing The module is in Command mode.

OFF The module is not receiving power from the backplane. A fault

condition exists.

485 Green ON Port DH485 on the module is active for communication.

OFF Port DH485 on the module is not active for communication.

PRT1 Green Flashing Port PRT1 on the module is transmitting or receiving signals.

OFF Port PRT1 on the module is not transmitting or receiving signals.

PRT2 Green Flashing Port PRT2 on the module is transmitting or receiving signals.

OFF Port PRT2 on the module is not transmitting or receiving signals.

FAULT Red ON A system problem was detected during background diagnostics.

Contact your local Allen-Bradley representative.

OFF No system problems are detected during background diagnostics.

BA LOW Red ON The voltage of the battery that backs up RAM is low. A new

battery is needed.

OFF The voltage of the battery that backs up RAM is at an acceptable

level.

LED1 Amber ON User definable. LED activated through the user program.

OFF User definable. LED de-activated through the user program.

LED2 Amber ON User definable. LED activated through the user program.

OFF User definable. LED de-activated through the user program.

ACT

485

PR T1

PR T2

FAULT

BA LOW

LED1

LED2

PRT1

PRT2

DH485

BASIC

LEDs

SLC 500 BASIC and BASIC-T Modules 7

Publication 1746-IN009B-EN-P - August 2005

Set the Module Jumpers

The BASIC module and BASIC-T module have four sets of jumpers that you need to

set. Jumpers JW1 and JW2 configure ports PRT1 and PRT2. Jumper JW3 configures

the type of optional memory module. Jumper JW4 configures the program port.

Figure 2 Jumper Locations

ATTENTION Do not expose the module to surfaces or other areas that may

typically hold an electrostatic charge. Electrostatic charges can

alter or destroy memory.

SLC 500

BASIC MODULE

CAT SER

SERIALNO. FRN 12345

6789

CONFIG 12345

6789

DF1 DH485

JW1

Memory Module

JW3

JW4

Battery JW2

8SLC 500 BASIC and BASIC-T Modules

Publication 1746-IN009B-EN-P - August 2005

Module Jumper JW1

Use jumper JW1 to select one of the following configurations for port PRT1.

•RS-232/423

•RS-422

•RS-485

Figure 3 Jumper JW1 Pin Assignments and Settings

ATTENTION Settings other than those shown for each jumper may cause

damage to the module.

13579

246810

Pin Assignments

RS-232/423 (Shipped Configuration)

RS-422

RS-485

SLC 500 BASIC and BASIC-T Modules 9

Publication 1746-IN009B-EN-P - August 2005

Module Jumper JW2

Use jumper JW2 to select one of the following configurations for port PRT2.

•RS-232/423

•RS-422

•RS-485

Figure 4 Jumper JW2 Pin Assignments and Settings

Module Jumper JW3

Use jumper JW3 to configure the memory module socket for one of the following

optional memory modules.

Memory Module Memory Size and Type Compatible with

1747-M1 8 K bytes EEPROM 1746-BAS module

1747-M2 32 K bytes EEPROM 1746-BAS module

1747-M3(1)

(1) This memory module is no longer available for sale from Rockwell Automation. Existing

1747-M3 and 1747-M4 memory modules are compatible with the 1746-BAS module and

1746-BAS-T module.

8 K bytes UVPROM 1746-BAS module

1747-M4(1) 32 K bytes UVPROM 1746-BAS module

1771-DBMEM1 8 K bytes EEPROM 1746-BAS-T module

1771-DBMEM2 32 K bytes EEPROM 1746-BAS-T module

13579

246810

Pin Assignments

RS-232/423 (Shipped Configuration)

RS-422

RS-485

10 SLC 500 BASIC and BASIC-T Modules

Publication 1746-IN009B-EN-P - August 2005

Figure 5 Jumper JW3 Pin Assignments and Settings

Module Jumper JW4

Use jumper JW4 to select one of the following configurations for the module ports.

•PRT1 Port = Program port with default communication settings

PRT2 Port = ASCII interface port

DH485 Port = Run time DH485 operation only

•PRT1 Port = ASCII interface port

PRT2 Port = ASCII interface port

DH485 Port = Program port with DH485 protocol

•PRT1 Port = Program port with programmed communication settings

PRT2 Port = ASCII interface port

DH485 Port = Run time DH485 operation only

•PRT1 Port = Program port with programmed communication settings

PRT2 Port = DF1 protocol

DH485 Port = Disabled

IMPORTANT The first setting shown in Figure 6 is the default configuration.

When the jumper is set in this position, the module always

powers up in Command mode at 1200 bps, no parity, 8 data bits,

and 1 stop bit.

246

135

Assignments

1747-M4 UVPROM(1)

(1) This memory module is no longer available for sale from Rockwell Automation. Existing 1747-M3 and

1747-M4 memory modules are compatible with the 1746-BAS module and 1746-BAS-T module.

1747-M1 EEPROM

1747-M2 EEPROM

1747-M3 UVPROM(1)

1771-DBMEM1 EEPROM

1771-DBMEM2 EEPROM

(Shipped Configuration)

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