The development software enables you to program the module from a 

personal computer connected to either the module’s DH485 or PRT1 

ports. The software allows direct access to the module through 

terminal emulation over an RS-232/423 or DH485 network.

Refer to the BASIC Development Software Programming Manual, 

publication 1746-PM001, for additional information on the software.

Typical Configurations

The typical configuration of the SLC system that incorporates your 

BASIC or BASIC-T module depends on whether the module is:

• integrated with a SLC 500 fixed or modular controller.

• programmed directly with an ASCII terminal or programmed 

using a personal computer with the BASIC development 

software, 1747-PBASE.

• communicating with a DH485 network or with an external 

source through a modem using DF1 protocol.

Module Integration

The module is a single-slot module that is inserted into a slot in the 

expansion chassis of your SLC 500 fixed controller or an open slot in 

the 1746 I/O chassis of your SLC 500 modular controller. The module 

may be inserted in any slot of the 1746 I/O chassis except the first slot 

of the first chassis, which is reserved for the SLC modular processor. 

Typical SLC fixed and modular configurations are shown in the 

following figures.