94
January 2004
Pin 5
Green
Pin 3
Black
Pin 2
Red
Pin 1
Ground
Pins
1 thru
5
Pin 7
Green
Pin 2
Red
Pin 3
Black
Pin 1
Ground
Pins
25 thru
14
Pin 13
MALE
Pin 25
Pins
13 thru
1
Pin 1
Pin 14
FEMALE
Pin 9
Pins
6 thru
9
Pin 1
All other pins are optional and are not usually used. The RS-232 connector is a DB-25 and is wired as a DTE.
This means that we send data on the TXD wire and receive data on the RXD wire. If you do not understand this,
your dealer will be glad to help. The simplest connection would be to an IBM PC, which can be done with a
standard cable made up of a DB-25 male on one end and a DB-25 female on the other. Pin 2 at one end is
wired to pin 3 at the other end, pin 3 is wired to pin 2, and pin 7 is wired to pin 7.
All RS-232 data is ASCII but the number of bits, parity and speed can be changed from settings. The number of
data bits is selected with Setting 37 for either 7 or 8. Parity is selected with Setting 12 and is none, even, odd,
or zero. Zero parity will always set the parity bit to 0. The data speed is selected with Setting 11.
Once the connection to your computer has been made and verified, go to the Setting page and set the baud
rate, parity, number of stop bits, end of block (EOB) format, and leader parameters to match your require-
ments.
All programs sent to the control must begin with a line containing a single
%
and must end with a line contain-
ing a single
%
. All programs sent by the control will have these
%
symbols.
To receive a program, push the LIST PROG key. Move the cursor to the word ALL and push the RECV RS-232
key and the control will receive all main and sub programs until it receives a
%
sign indicating end of input.
Please note that when using ALL, all your programs must have an address
Oxxxxx
to be filed. If you do not
have a program number, type in a program number before you push RECV RS-232 and the program will be
stored under that number. You can also select an existing program for input and it will be replaced. An ASCII
EOF character (code 04) will also terminate input. The colon character (
:
) may be used in place of the
O
for a
program name, but it is always displayed as
O
.
When receiving RS-232 data, there is a status message at the bottom of the screen. It will update as follows:
WAITING
When you first press RECV RS-232.
LOADING XXX
When first
%
is received; if in XMODEM, XXX is the current block being loaded.
LOADING Onnnnn
When program name is received.
RS232 DONE
When complete and last
%
is received.
RS232 ABORT
When anything causes an abnormal stop.
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