TCP/IP

[Qiushi11]

I have jut got a new detector and they only provide python code with the method of TCP/IP to communicate with the detector. When I used the python, I can read the count from the detector but when I use the labview, it always show the error out 56, did someone know how to solve it, or it is because the labview did not have utf8 ? the python and labview is in the attachment 

[santo_13]

Please share the Python code and the equivalent LabVIEW code to ensure you've ported it correctly.

[Qiushi11]

I think I upload the file, I upload it again, sorry for that. It seems that I cannot upload the python, here is the python

#!/usr/bin/env python

import socket
import matplotlib.pyplot as plt
import numpy as np

# open the device on the localhost, port 9999
t = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
t.connect(('127.0.0.1', 9999))

# read the server response
data = t.recv(512)
print(data.decode('utf8'))

# set the measurement times sweep from 50 to 500 ms
integration_times = 500

command = bytes("I," + str(integration_times) + '\n', "utf8")
print(command)
t.send(command)

data = t.recv(8192) # get the data
datastr = data.decode('utf8') # decode into a string
datasplit = datastr.split("\n") # split the lines

print(datasplit)
t.close()

[santo_13]

You did not quite accurately translate it to LabVIEW, especially the '\n' part and missed a comma in the command

Please try the attached VI

[Qiushi11]

Thanks for the information, really appreciate it. I try it but it has the same problem. I am wondering if it is the string still wrong, because when I print out from python, it shows like this, but in the code you provide, it is not the same. I am not very familiar with the labview so much, what do you think ?

[GerdW]

Hi Qiushi,

---

@Qiushi11 wrote:

when I print out from python, it shows like this, but in the code you provide, it is not the same.

---

Either enlarge those string indicators (as noted by that arrow in the lower right corner) or switch them to \-code display mode...

[Qiushi11]

Is it fine like that, it seems that the resulting string is still different with the python output.

[GerdW]

Hi Qiushi,

---

@Qiushi11 wrote:

Is it fine like that, it seems that the resulting string is still different with the python output.

---

What about setting the indicator to \-code display AND setting the displaymode indication to visible?

It's in the context menu of the indicator! (aka right-click menu)

[Qiushi11]

I try again:

By the way I try to combine python and labview together and it seems work. 

this is the def function

#!/usr/bin/env python

import socket

def get_server_data():
# Open the device on localhost, port 9999
t = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
t.connect(('127.0.0.1', 9999))

# Read the server response
data = t.recv(512).decode('utf8')

# Set the measurement times sweep from 50 to 500 ms
integration_time = 500

# Start an intensity measurement and read the data
command = bytes(f"I,{integration_time}\n", "utf8")
t.send(command)

data = t.recv(8192).decode('utf8') # Get the data

t.close()

return data # Return the result as a string

[GerdW]

Hi Qiushi,

---

@Qiushi11 wrote:

I try again:

---

You still don't show \-code display in your frontpanel…