Horner APG RCS RCS250 - Manual (Page 5)

MAN0432-04 15 JAN 2010 PAGE 5
Figure 8 – RS-232 Port
The RCS units feature an RS-232 port (Programming/Debug) for connection to a personal computer.
This port is used for the purposes of RCS programming, configuring, monitoring, and debugging. This
port can also be used for general ladder logic controlled serial communications to printers, modems,
terminals, etc. When ladder has control of this port, it is not available for programming or debugging. The
wiring diagram for the RS-232 port is shown in Figure 8. If a permanent connection is to be made
between the RCS and the personal computer, the use of a shielded, multiple conductor wire with a
maximum length of 15.24 meters (50 feet) enables proper performance.
Figure 9- RCS to PC Wiring Diagram
3 LEDs
Figure 10 – RCS LEDs
Pin 9
Pin 1
OCS RS-232 9-PIN PC COM
SHIELDED MULTI CONDUCTOR
DCD 1 1 DCD
RXD 2
TXD 3
DTR 4
GND 5
DSR 6
RTS 7
CTS 8
RI 9
2 RXD
3 TXD
4 DTR
5 GND
6 DSR
7 RTS
8 CTS
9 RI
DB9
MALE
DB9
FEMALE 15.24 METERS MAX
(50 FEET MAX)
A close-up of LEDs
OK
RUN
NS
MS
Power LED