Author Topic: RIGOL DS1052E - RS232 port male chassis?  (Read 3439 times)

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Offline GerardWassinkTopic starter

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RIGOL DS1052E - RS232 port male chassis?
« on: July 26, 2017, 01:37:53 pm »
Hi all,

Does anybody have any idea why on earth the chassis part of the RS232 port on this oscilloscope is a male version, while all of the "normal" RS232 cables and USB-serial cables end in a male plug as well?

On the same note: when I find a female-female stub (pins connected one on one, straight over), wether this will work?

Kind regards,

Gerard
« Last Edit: July 26, 2017, 04:17:37 pm by GerardWassink »
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Offline Specmaster

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Re: MHS-5200A RS232 port male chassis?
« Reply #1 on: July 26, 2017, 02:16:29 pm »
Hi all,

Does anybody have any idea why on earth the chassis part of the RS232 port on this generator is a male version, while all of the "normal" RS232 cables and USB-serial cables end in a male plug as well?

This does not have a RS232 port, it is a port for the digital TTL input/output as can be seen in here https://www.banggood.com/MHS-5200A-25MHz-Digital-DDS-Dual-channel-Signal-Generator-Source-Frequency-Meter-13N2-p-1041328.html?utm_source=google&utm_medium=cpc_elc&utm_campaign=ds-elc-rm&utm_content=mandy
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Offline GerardWassinkTopic starter

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #2 on: July 26, 2017, 04:16:53 pm »
Quite right, thanks. I was mistaking, the question should have been about the RIGOL DS1052E.  I bought them both in. the last few weeks and have been struggling with computer connection in both machines.

I will try to change the thread's title accordingly.

Gerard
« Last Edit: July 26, 2017, 04:19:25 pm by GerardWassink »
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Offline alm

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #3 on: July 26, 2017, 04:50:21 pm »
If the RS-232 port is male, this usually means you need a null modem cable (RX and TX wires reversed) to connect it to a computer. As to why that polarity, you would have to ask the designers. May be they were expecting driving other RS-232 peripherals from the scope?

If you want a USB connection, why not use the USB port?

Offline GerardWassinkTopic starter

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #4 on: July 26, 2017, 04:58:55 pm »
If you want a USB connection, why not use the USB port?

Because I'm not sure these ports are functionally equivalent.

I would ultimately like to be able to communicate with the scope from MacOS in Python and have have up till now not been able to find drivers for it for Mac OS, not for RS232 nor for USB.

Gerard
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Offline BobRyan

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #5 on: July 27, 2017, 03:34:02 pm »
You can use PyVISA. Lots of examples are available online
 

Offline GerardWassinkTopic starter

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #6 on: July 28, 2017, 08:36:44 am »
Okay, thanks. Tried that, see below.

Could you please think with me?


RIGOL DS1052E on Mac OS

Info:
   RIGOL      DS1052E, 00.04.02 SP1
   Mac OS      Sierra, 10.12.5
   Python      2.7

Actions:

   Download NI-VISA 5.0 voor Mac OS
      Webpage:   http://www.ni.com/download/ni-visa-5.0/2039/en/
   
      Install attempt
         Will not install, asks for 32-bit kernel

   Download NI-VISA 5.4.1 voor Mac OS
      Webpage:   http://www.ni.com/download/ni-visa-5.4.1/4631/en/
   
      Install
         Install success, system restart
         

Found PyVISA 1.8

   Downloaded and installed PyVISA 1.8 voor Mac OS
      Webpage:   https://pyvisa.readthedocs.io/en/stable/getting.html
      
   Install
      pip install -U pyvisa
      
   Install check
      >>> import visa
      >>> rm = visa.ResourceManager()
      >>> print(rm.list_resources())

       fails on
         import visa

Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
ImportError: No module named visa



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Offline GerardWassinkTopic starter

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Re: RIGOL DS1052E - RS232 port male chassis?
« Reply #7 on: July 31, 2017, 06:17:44 am »
Bump...
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