Programing 6221 keithley conected to 2182a(as master)

[amirfh]

---

I do need help

Im just started learning labview

I dont know how to connect and program 6221 

I connected the device(6221 connected to 2182a) via rs232

Can anybody explain step by step what should i do

I searched a lot but couldnt find any thing

for your information again 

I havent download any drive or anything

---

[ZYOng]

If you are referring to NI USB-6221, it is a DAQ device and doesn't support RS-232 natively.

You can buy an off-the-shelf USB-to-RS232 converter and run Keithley 2182A Nanovoltmeter - Instrument Driver

[amirfh]

Sorry, there was a mistake in my question that I realized now

two devices connected with rs 232 

I wanted to program through digital io that i used rs232 to usb cable to connect my laptop

[GerdW]

Hi amir,

---

@amirfh wrote:

I wanted to program through digital io that i used rs232 to usb cable to connect my laptop

---

Could you please reword this sentence?

• Which device is connected to your computer?
• Which kind of cable (aka communication bus) is used for each device?
• How does the "digital IO" come into play when talking about RS232 communication?

[amirfh]

• 6221 is connected to my computer
• to devices(6221 and 2182) connected by rs 232 and trigger link
• I said , i made mistake in my question . I connected 6221 to my computer from digital I/O port

[GerdW]

Hi Amir,

---

@amirfh wrote:

• 6221 is connected to my computer
• to devices(6221 and 2182) connected by rs 232 and trigger link
• I said , i made mistake in my question . I connected 6221 to my computer from digital I/O port

---

We do talk about the USB6221 from NI? Or do we talk about the Keithley6221?

I guess you talk about two Keithley devices (6221 and 2182): How exactly did you connect the Keithley6221 to your computer? One bullet point says "RS232", the other says "digital IO port"…

[amirfh]

I meant keithley 6221

Let me say it like this

Forget rs 232

I connected the digital I/O to laptop usb with a cable

---

---

[GerdW]

Hi Amir,

---

@amirfh wrote:

Forget rs 232

I connected the digital I/O to laptop usb with a cable

---

You need to explain this with more details!

• Which digital IO did you use?
• Why (and how) did you connect those "digital IO" to the USB port of your computer???
• What do you want to achieve with this connection "to USB"?