Installing the KFC15/KFCD15 Module
3–3
Publication 17706.5.20 - June 1997
Connecting to a Host through the RS232C Port
A single, full- or half-duplex, RS-232C serial port using the DF1
protocol provides communications with either a host computer or
intelligent controller. For an explanation of full- and half-duplex see
Chapter 5, Communicating with the KFC15/KFCD15 Module.
RS-232C Baud Rates
The KFC15/KFCD15 module supports the following baud rates:
300, 600, 1200, 2400, 4800, 9600, 19200 and 38400.
Cables
Cabling for the RS-232C connector will vary depending on your
application. You can use either a 3-wire cable or a cable with
handshaking lines. For wiring diagrams see Appendix B, Cabling
and Pinouts. The maximum recommended cable lengths are:
•
for baud rates
≤
19200
15 m (50 ft)
•
for baud rates = 38400
7.5 m (25 ft)
Connector
The RS-232C interface connector at the KFC15/KFCD15 module
end is a DB-25 male connector (DTE) with EIA (Electronics
Industries Association) standard pinout as outlined in Appendix B,
Cabling and Pinouts.
RS-232C Activity Indicator
The HOST LED will flicker when the KFC15/KFCD15 module is
receiving or transmitting data over the RS-232C interface. The LED
will be off when no data activity is occurring over the RS-232C
interface.