VISA Serial Read Error Heratherm OGH100

[sguha2]

Hello,

I am trying to communicate with a Heratherm OGH100 oven from laptop using USB-RS232 adapter. I am using the VISA Test Panel of NI -MAX to send the command.I am querying the oven with "?3010:00::c2\r" as mentioned in manual (\r for <CR>). But I always get a timeout error(see attached).

I have checked all the connection parameters:

stop bit :1

Parity: none

57600 bps

8 data bits

Can anybody please help me with this issue?

Regards,

Sanhita

[AnalogKid2DigitalMan]

Noticed you did not use the colon : after the ?.

-AK2DM

[sguha2]

Hello,

I am so sorry that was a stupid error. Now I get the expected output however, I still get a timeout error. I need to fix that because I want to code this operation in Labwindows. Do you have some suggestions?

Sorry if this is a stupid question. Please excuse me as I am very new to this platform.

Regards,

Sanhita

[AnalogKid2DigitalMan]

Attaching the entire manual would be of help.

What specifically are you sending/doing that returns a timeout error?

-AK2DM

[sguha2]

I am trying to read the temperature of the oven using the commands given in the manual .I would ultimately like to develop a code to read the temperature of the oven automatically every 5 seconds.

 I have attached the I/0 trace too for reference. The same command does not work the first time I don't know why.

[sguha2 · Accepted solution]

Hi,

The issue was regarding the <CR>. A /n was getting appended every time which lead to the error.

Thank you.