Overview

The module and the development software provide the following benefits.

• Easy data collection from user devices

• Integrated program debugging environment

• Operator interface capabilities

• Flexible program and data storage options

• High-level math

• Clock/calendar

• High-level programming environment

• Extensive online help system

• Easy access to editor functions through user interface

• Advanced text editor windows

TIP

The 1746-BAS-T module is a higher-speed version of

the 1746-BAS module with identical hardware

features. The modules can be interchanged, except

that the 1746-BAS-T module uses different (optional)

memory modules. 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 faster 1746-BAS-T module.

BASIC and BASIC-T Modules

The modules are single-slot modules that reside in a SLC 500 fixed or modular controller chassis.

Use the module as:

• a foreign device interface.

• an operator interface.

Hardware Features

The module provides the following hardware features.

• 24 KB of battery backed RAM for storage of user programs and data

• Capacitive backup of RAM during battery change

• Socket for a standard 1747-M1, M2, M3, or M4 memory module

(1746-BAS module) for www.abb-drive.com nonvolatile storage of user programs

• Socket for a 1771-DBMEM1 or -DBMEM2 memory module

(1746-BAS-T module) for nonvolatile storage of user programs

• Battery-backed, 24-hour clock/calendar

• Free-running clock with 5 ms resolution

• Two isolated 9-pin D-shell serial ports (PRT1 and PRT2) that

provide RS-232/423, RS-422, and RS-485 communication with I/O devices

• One PRT2 port provides DF1 full-duplex or half-duplex slave

protocol for SCADA applications

• One RJ-45 port (DH485) that provides communication over the DH485 network

• Multiple LED indicators for operator interface

• SLC 500 backplane interface