Granville Phillips 358 RS232 Module Communication PXI-8430

[Amanda2482]

Hi,

I am trying to communicate with the 358 Granville Phillips Micro-Ion Controller but it is not responding. I send "IG1 ON CRLF" and it just times out. I am wondering if it is any of the board switches that are not in the right setting. We put all the switches to factory settings, is there a switch that is not the factory setting to enable communication with PXI-8430/8?

Thank you!

[Dennis_Knutson]

Are you actually sending the text 'CRLF'? That stands for carriage return/line feed and you have to send the actual control codes. A simple way is do it the same way as the simple serial example and enable slash codes for your string control/constant. This is a right click option. Use \r\n. You also have these as string constants if you use the concatenate string function.

You haven't mentioned it but I'm assumimg you are using LabVIEW.

[Amanda2482]

Thanks for responding so quickly!

I just tried sending these strings:

DS\sIG\r\n

DS\sIG1\r\n

DS\sIG2\r\n

DS\sCG1\r\n

DS\sCG2\r\n

IG1\sON\r\n

IG1\sOFF\r\n

IG2\sON\r\n

IG2\sOFF\r\n

CG1\sON\r\n

CG1\sOFF\r\n

CG2\sON\r\n

CG2\sOFF\r\n

DS\sIG\s\r\n

DS\sIG1\s\r\n

DS\sIG2\s\r\n

DS\sCG1\s\r\n

DS\sCG2\s\r\n

IG1\sON\s\r\n

IG1\sOFF\s\r\n

IG2\sON\s\r\n

IG2\sOFF\s\r\n

CG1\sON\s\r\n

CG1\sOFF\s\r\n

CG2\sON\s\r\n

CG2\sOFF\s\r\n

And nothing. It still times out and says the VISA Read failed.

I have also been trying these VIs I have attached

[Amanda2482]

. . . but alone they still have errors when trying to VISA Read. I tried adding \r\n to these VIs but still no luck.

Thanks for all your help!

-Amanda

[Albert.Geven]

Those vi's sound really familiar. The instrument is still working with these vi's

So first check: do you have the correct cable?

null modem or straight. I'm sorry I don't know what it is anymore and can't check either in the clean room.

Next Question, are both systems having the same bausrate and other settings?

good luck

[Amanda2482]

The granville-phillips_370 VIs still do not work.

Tha cable setup I have is from the NI PXI-8430/8 RS232 to a breakout cable (SCSI-68 to eight DB9 male), then a straight 9pin cable to a 9pin to 25pin converter, then through a Female-Female gender bender and then to the RS232 card of the 358 Granville Phillips. I hope the 25-9pin converter is not messing anything up.

All the settings are correct as described in the manual: 9600 BAUD, 8 data bits, no parity,1 stop bit. Is there any flow control or other settings I need to change to operate?

Thank you for your help!

-Amanda

[Albert.Geven · Accepted solution]

It is for a reason that we call the RS232 standard

Regularly Soldering 2-->3-->2 standard

if 2 and 3 are swapped, the machines are shouting at the same line and listening to nobody on the other line...

[Amanda2482]

Problem Solved!

The 25 pin to 9 pin converter switched pins 3 and 2 physically. To switch them back I used a 9 pin to 9 pin Null Modum and everything worked!

Thanks to everyone who helped me out.

-Amanda