Rockwell Automation 1747-L40 SLC 500 Fixed Hardware Style - Manual (Page 125)

Appendix C
RS-232 Communication Interface
C–2
The SLC 500 product line has three other modules, aside from the SLC 5/03
processor, that support the RS–232 communication interface. They are the
DH–485 Communication Interface (1770–KF3), the BASIC module
(1746–BAS), and the DH–485/RS–232C Interface (1747–KE). All three of
these modules can be used with SLC 500 Fixed Controller.
1770-KF3 Module
The 1770–KF3 module links host computers with the Allen–Bradley
DH–485 Data Highway. The host computer communicates with the
1770–KF3 over an RS232 link using DF1 protocol. Through the 1770–KF3,
the host computer can communicate with the nodes on the DH–485 network.
For more information on the 1770–KF3 module, see the DH–485
Communication Interface User Manual, Catalog Number 1770–6.5.18.
1747-KE Module
The 1747–KE 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 for RS–232/423, RS–422, or
RS–485 devices. Residing in an SLC 500 chassis, the 1747–KE 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, Catalog Number 1747–NU001.
1746-BAS Module
The 1746–BAS module, which is programmed using the BASIC language,
has two configurable serial ports for interfacing to computers, modems,
printers, and other RS–232 compatible devices. You can also use it for
off–loading complex math routines from an SLC 500 processor; this
conserves valuable ladder logic memory.
For more information on the 1746–BAS module, see the SLC 500 BASIC
Module Design and Integration Manual, Catalog Number 1746–ND005.
SLC 500 Devices that Support
RS-232 Communication