Re: Aten Uc232a Usb To Serial Drivers
Towanda Tuning
Good day John,
I've try to connect Computer to GE Monitor B650 via Serial port and send the request display value command to the B650 and the monitor return with HEX data but I can't translate them into physiological data ie HR, BP etc. so how can i translate them ? Could you please advice on this.
You can use VSCaptureWavev1.004 to download physiological data from GE Carescape B650/B850 monitors. You will need 2 USB to serial adapters, one to connect to the USB port on the carescape monitor (usually an ATEN www.aten.com usb serial cable to USB port 4) and another connected to the USB port of your laptop. These two cables then need to be connected with each other with a female to female DB9 Null modem serial cable.
and
Hello John,
So if I understand well, it is not possible to capture S/5 physiological data from a Carescape B650 using the DB9 serial port, only the fourth USB port ?
Thank you very much,
Alex
Hi guys,
I have test the B650 with VSCapture and got nothing. I connected the PC with B650 using 2 serial to USB adapter(FTDI chip) and a RS232 female to female cable(not sure null modem or not).
Actually, I have a Rasberry Pi with COM port, which is able to connect to the B650 with only 1 adapter. But I still cannot get any data. Is there any configuration needs to be set?
Hi,
As mentioned above, the B650 needs a specific RS232 cable ATEN UC232A connected to the USB port of the monitor. This must be connected into a null modem serial cable, connected to a generic usb serial cable (interfaced with recording PC). Check your cables, it should work.
After checking the B650 admin page USB connection. B650 is actully
recognized the serial to USB cable. I suppose it is not that important
to use ATEN cable. I will test it with ATEN next time.
And a further question, if the PC, or the Rasberry Pi I mentioned
above, has got a COM port, am I really need that null modem cable and
the other USB adapter to connect?
ATEN cable drivers are probably inbuilt in the GE device, not sure if others might work. A null modem cable is generally needed to connect the GE device to a RS232 serial port. If your PC already has a hardware serial port, you may not need a usb serial cable at the PC end. In RaspberryPi, it has been tested with usb serial cables rather than in-built GPIO pins. Did you get it working?
Hi John,
Very thanks for your software to capture data from GE B650 monitor. However I can only download limited variables from the monitor. Does any modification that I can get SPV, PPV, Entropy and NMT data? Please advice. Thank you again.
Best regards,
Frank
Hi Frank,
VSCapture reads all the physiological variables supported by the GE monitor (listed in Class2.cs in the source code) including Entropy and NMT. By modification (Use the latest version of the app v1.009) of the source in Class1.cs (ShowExt1and2SubRecord or adding another method to show Ext3 subrecords) these additional variables can be exported to CSV. About SPV and PPV, these are derived values and not part of the basic subrecords. You can add your own algorithm to derive these values from realtime data. PM me with your email info, study design and variables required if you need a custom version.
John.
Hi Frank,
Came across newer S/5 specifications that seem to contain definitions for SPV and PPV for data export. Could you share some screenshots of these monitor data (values and units)? It may be possible to update the code to add data export for SPV and PPV.
John.
Hi Jason,
If you are using the VSCaptureWave app (B650 connected via ATEN usb serial cable, null modem cable and another usb serial cable to your laptop as described above), you don't need to enter the serial port baud rate settings (the app configures the port as needed). It uses 19200-8-E-1.
Although patient name and ID may be supported in some GE monitors via network interface, it may not be supported or set to extract the data via RS232 computer interface (as per GE protocol). Can you post some example screenshots and the monitor model?
Hi, We are trying to fetch the data from GE 850 from the ATEN usb serial cable (image 1), null modem cable (image 2) and usb serial cable (image 3) with correct settings(19200-8-E-1) but is unable to fetch the data. I am attaching the images for your reference. I have some doubts which I want to clear as these also could be the reason of not fetching the data.
1. What should be the virtual ID which is entered into the GE 850 monitor under Service-> Network.
2. We have selected the network type as S/5. Please check the configurations in the images attached (image 4 and 5).
3. Lastly we could not able to see network sign on Monitor. Is it required for communication?
This maybe an issue with the USB (wrong) port used or the cables. The network settings are for LAN not RS232, the latter does not need any virtual ID. If protocol settings are needed, it should be S/5 format. For GE S/5, the correct VSCapture module to use is VSCaptureWave.
USB port 4 should work. If the cables are not faulty (maybe issue with the ATEN cable, some of the newer chipsets VID and PID are not compatible with B850), running the VSCaptureWave app (complete all the prompts) sends the communication requests at a user specified interval. There's no need send or read any messages in the Hexadecimal format. The app decodes that for you.
Actually we have tried with VSCaptureWave app but it got stuck in between thats why we are trying to test from moserial. As per previous post we got the initial message in moserial so need the protocol documentation so that we can communicate with moserial.
Hi, Thanks a lot for your help and now we can fetch the data. As discussed earlier, we had proceeded with the S/5 protocol using the ATEN USB. We have changed the settings in GE850, and shifted the wired interface to S/5 (and unchecked the carescape network) setting dur to which the central monitoring of the baby got disconnected.
We assumed that this happened due to the central monitoring being based on carescape protocol. This was validated, as when we reverted our settings (unchecked S/5 ) and selected carescape network and provided MC & IX network details, the data resumed on central monitoring.
Is there any way that we can fetch the data from both the settings as we dont want to disturb the hospital settings.
hello Shubham ji, We are from Amrita hospital in Faridabad. We are trying to take data from B650 which seems to be a similar model to B850. Can you please help us how you managed to so it with the help of Rpi. We are also trying to do the same with Rpi. Looks like the serial port work. Could you get it working with a normal cable or did you use the null modem cable. Please help.
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