1746-BAS-5/02   SLC 500 SLC BASIC Module 

The 1746-BAS is a single slot module used in SLC 500 modular or fixed style hardware. This module is a

Basic Language Module used for interfacing with Human Machine Interface (HMI), printers, modems and other devices for implementing machine level data collection and integration,

The 1746-BAS module features communications ports such as PRT1, PRT2 and DH485 communication interfaces.

PRT 1 is exclusive used for interfacing the BAS module to user devices via transmission speeds of 300, 600,

1200, 2400, 4800, 9600 and 19200 Baud Rate in full duplex mode. This port may be configured for RS232,423 / 422,

485 modes. PRT 2 may also be used with user devices and also for interfacing modem using DF1 protocol. It is also

capable of RS232 / 423, RS422 / 485 communication modes with same Baud Rates as PRT1. The DH485 communication

terminal is used for DH485 network. It is a non-isolated port and requires the use of 1747-AIC to connect the port to

DH485 network. It is important to remember that when PRT2 is configured as DF1 or used for interfacing to a modem, the DH485 communication port is disabled.

1746-BAS-T

The Allen Bradley 1746-BAS is a Basic Language Module of the SLC 500 system. It enhances the

capability of any SLC 500 system by adding report generation and data collection. It can be connected to

modems, printers, operator interface terminals and other external devices through two configurable

channels. The 1746-BAS-T module is an identical higher-speed version of this module with different optional

memory modules. The 1746-BAS module has a memory size of 24 KB with battery-backed RAM. It has a power

supply loading function of 0.150 at 5 Volts DC and 0.040 at 24 Volts DC. For communication, it uses RS-232/423,

RS-422, RS-485 and DH-485 ports with a maximum communication distance of 1230 meters.