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Frustrated
3 Posts |
 Posted - 10/20/2013 : 02:48:32
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I bought a GMC-300E a couple weeks ago. I can not get the unit to connect to the computer to download the data. This is the main feature I bought it for. I have tried to work with the support person, and even returned the unit at my expense for repair or replacement. A replacement was sent with no explanation. The replacement has the same problem as the original.
When I connect the unit and select the serial port from the drop down at the bottom of the window, I get “COM5 opened successfully”. I never get any message saying the unit is detected. When I try to download data, I get the error "There are some unsynched communication, you may need to reconnect the
unit and download again.
Check the unit communication baud rate setting.
Turn off and disconnect unit, then restart software.
Downloading ended with error."
Support’s recommendation was:
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1. do a factory reset on the Geiger Counter.
2. exit software, turn off the unit.
3. open the Windows device manager,reconnect the USB cable and you should see a new comport number added to the list.
4. run software Re2.04b and select the corresponding comport.
5. the software should detect the Geiger Counter and display the message: "GMC-300 is detected on comport X"
If the software does not detect the hardware, try "Auto detect".
If still does not work, then try another USB cable and see if it is the cable problem.
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This did not work. Auto detect does not work.
I am using GMC-300E, Re 3.12, Driver 3.4.25.218, and I have tried data viewer 2.03 and 2.04b. I have tried different known working cables and two Vista computers and one XP computer.
What’s the secret? Can anyone be of more help then the support? Or has anyone made some working software they can share?
I really want this to work. Thank you in advance.
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| Reply #1
myf
France
6 Posts |
Posted - 10/20/2013 : 07:15:45
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Hello,
I get a GMC-300E because it has a usb-link. My computer run ubuntu and don't use any windows.
There is not a lot of information about the usb link, but I can test the Geiger device with theses very small code :
I code with Python3.
The first program is :
import serial
s = serial.Serial( "/dev/ttyUSB0", 57600 )
s.write("<GETVER>>".encode("Latin-1"))
version = s.read(14)
print (version)
I must install the serial Python3 library
(apt-get install python3-serial under Ubuntu)
I open the Geiger device by "s = serial.Serial( "/dev/ttyUSB0", 57600 )". You may also run lsusb in a terminal in order to see if your usb-link is up.
The third line write this command to the usb link. Note the syntax with "<.....>>" : ONE < and TWO >>. The encode method translate utf string to ascii string.
The 2 last lines read the usb answer from the Geiger device.
I feel it is the shortest(?) code to test the GCN-300E.
When this program is right you may get the CPS Count Per Second inside the Geiger tube :
import serial
s = serial.Serial( "/dev/ttyUSB0", 57600 )
s.write("<HEARTBEAT1>>".encode("Latin-1"))
while True:
res = s.read(5) # read every 5 seconds
print (res) # 5 bytes for 5 seconds.
I hope you often get 0 CPS...
You complete this code in order to save the date, sum it in order to get microSv/h, and so.
I hope you understand how to log data from scratch.
I find the Input/Output commands with Google : the first lines are :
***************************************************
GQ-RFC1201
GQ Geiger Counter Communication Protocol
***************************************************
Ver 1.30
F. from France
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| Reply #2
ZLM
1261 Posts |
Posted - 10/20/2013 : 13:16:37
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Try latest software Re2.05. Use Auto-Detect feature first.
The coreect steps to connect the unit:
1. exit software, turn off the unit and disconnect the unit usb cable..
2. open the Windows device manager,reconnect the USB cable and you should see a new comport number added to the list.
3. run software Re2.04b and select the corresponding comport.
4. the software should detect the Geiger Counter and display the message: "GMC-300 is detected on comport X" |
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| Reply #3
Frustrated
3 Posts |
Posted - 10/20/2013 : 14:53:32
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Thank you myf for your input. I am not a programmer and do not use ubuntu.
ZLM - I get the same results with the newer version 2.05. I get a COM5 opened successfully message but never get "GMC-300 is detected on comport X". Auto detect feature does not work. It scans all the ports, pauses on the correct port and does not give the message "COM port x open failed" for that port. The GMC-300 is never detected.
I was able to find some other software that monitors the count of the GMC-300 but does not read the data file. It is h**p://www.netc.com/software/wapp4netc-install.exe
This program has no problems connecting. It is nice but does not have the capability to read the stored data. That is why I bought this unit. |
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| Reply #4
ZLM
1261 Posts |
Posted - 10/20/2013 : 21:09:35
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are you using Windows 8? If you turned on Windows driver auto update, then there is a potential driver compatibility issue. Because newer version software driver may not work well.
In this case, you may need to roll back the driver to previous version.
See driver rollback topic:
http://www.gqelectronicsllc.com/forum/topic.asp?TOPIC_ID=3707 |
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| Reply #5
Frustrated
3 Posts |
Posted - 10/21/2013 : 13:49:38
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| I am NOT using Windows 8. If you read my initial post you see the version of the driver I have. 3.4.25.218 The same one suggested in the tread you referred to. |
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PLEASE help with connecting
