User manual

Publication 1747-UM011F-EN-P - May 2007
RS-232 Communication Interface 205
SLC 500 Devices that
Support RS-232
Communication
The SLC 500 product line has two other modules, aside from the
SLC 5/03, SLC 5/04, and SLC 5/05 processors, that support the RS-232
communication interface. They are the 1746-BAS BASIC module and
the 1747-KE DH-485/RS-232C interface. Both of these modules can be
used with either the SLC 5/01 or SLC 5/02 processor.
1747-KE Module
The 1747-KE module is a communication interface module that acts as
a bridge between DH-485 networks and devices requiring DF1
protocol. You can configure the DF1 port on the 1747-KE module for
RS-232/423, RS-422, or RS-485 devices. Residing in an SLC 500 chassis,
the 1747-KE module is ideally used as an interface module, linking
remote DH-485 networks via a modem to a central host.
For more information on the 1747-KE module, see the DH-485/RS-232
Interface Module User Manual, publication 1747-IN006.
1746-BAS and 1746-BAS-T Modules
The 1746-BAS and 1746-BAS-T modules, which are programmed using
the BASIC language, have two configurable serial ports for interfacing
to computers, modems, serial printers, and other RS-232 compatible
devices. You can also use them for off-loading complex math routines
from an SLC 500 processor, thereby conserving ladder logic memory.
For more information on the 1746-BAS module, see the SLC 500
BASIC and BASIC-T Module User Manual, publication 1746-UM004.