Having a problem with communication via RS232 - have a 25 pin to 25 pin setup as follows:

PC Control
1 -------------------1
2--------------------3
3--------------------2
4-- --4
| |
5-- --5

6-- --6
| |
8-- --8
| |
20- --20

7 -----------------7

Parameter Settings:

Settings Page:

Punch Code: 0
Inpurt Device: Can set for 1 or 2 get a SR830 DR OFF (2) error
Output Device: Can set for 1 or 2 get a SR830 DR OFF (2) error

Set for anything else I get a "parameter setting in error" alarm

0000 = 00000000
**5001 = 1 (when Input device =1)
**5002 =1 (when Input Device =2)

**Dont understand what is being said here, assume this has something to do with the ports.

5110 = 3
5111= 2
5112 = 10

The "SR830 DR OFF (2)" error occurs immediately upon pressing the control "READ" button. (or "PUNCH" as the case may be) appreciate it if someone could clue me in as to what parameters mean, sure it has something to do with Parity, start bits, data bits, stop bits or handshaking method and what could be causing this problem.

Put an RS232 tester on the control what I see is the TD (Transmit Data) LED is on, RD (Received Data) is off, RTS (Ready to Send) and CTS (Clear to Send) are lit, seems normal, Press "READ" and Red LED for pin 20 lights up.

Appreciate whatever help you can give me....is there maybe some reason that the control is not giving the PC ample time to transmit the program? Is there a parameter setting for that?

Regards;
Norm Pepe