def display_values(self, array, range_, total_count, low_chan, high_chan):
new_data_frame = tk.Frame(self.results_group)
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
chan_count = high_chan - low_chan + 1
# Add (up to) the first 10 values for each channel to the text
chan_num = low_chan
for data_index in range(0, min(chan_count * 10, total_count)):
if self.ai_info.resolution <= 16:
eng_value = ul.to_eng_units(self.board_num, range_,
array[data_index])
else:
eng_value = ul.to_eng_units_32(self.board_num, range_,
array[data_index])
channel_text[chan_num - low_chan] += ('{:.3f}'.format(eng_value)
+ "\n")
chan_num = low_chan if chan_num == high_chan else chan_num + 1
# Add the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_label = tk.Label(new_data_frame, justify=tk.LEFT, padx=3)
chan_label["text"] = channel_text[chan_num - low_chan]
chan_label.grid(row=0, column=chan_num - low_chan)
self.data_frame.destroy()
self.data_frame = new_data_frame
self.data_frame.grid()
def update_value(self):
channel = self.get_channel_num()
ai_range = self.ai_props.available_ranges[0]
try:
# Get a value from the device
if self.ai_props.resolution <= 16:
# Use the a_in method for devices with a resolution <= 16
value = ul.a_in(self.board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units(self.board_num, ai_range,
value)
else:
# Use the a_in_32 method for devices with a resolution > 16
# (optional parameter omitted)
value = ul.a_in_32(self.board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units_32(self.board_num, ai_range,
value)
# Display the raw value
self.value_label["text"] = str(value)
# Display the engineering value
self.eng_value_label["text"] = '{:.3f}'.format(eng_units_value)
# Call this method again until the stop button is pressed (or an
# error occurs)
if self.running:
self.after(100, self.update_value)
except ULError as e:
self.stop()
self.show_ul_error(e)
def run_example():
# By default, the example detects and displays all available devices and
# selects the first device listed. Use the dev_id_list variable to filter
# detected devices by device ID (see UL documentation for device IDs).
# If use_device_detection is set to False, the board_num variable needs to
# match the desired board number configured with Instacal.
use_device_detection = True
dev_id_list = []
board_num = 0
try:
if use_device_detection:
config_first_detected_device(board_num, dev_id_list)
daq_dev_info = DaqDeviceInfo(board_num)
if not daq_dev_info.supports_analog_input:
raise Exception('Error: The DAQ device does not support '
'analog input')
print('\nActive DAQ device: ',
daq_dev_info.product_name,
' (',
daq_dev_info.unique_id,
')\n',
sep='')
ai_info = daq_dev_info.get_ai_info()
ai_range = ai_info.supported_ranges[0]
channel = 0
# Get a value from the device
if ai_info.resolution <= 16:
# Use the a_in method for devices with a resolution <= 16
value = ul.a_in(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units(board_num, ai_range, value)
else:
# Use the a_in_32 method for devices with a resolution > 16
# (optional parameter omitted)
value = ul.a_in_32(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units_32(board_num, ai_range, value)
# Display the raw value
print('Raw Value:', value)
# Display the engineering value
print('Engineering Value: {:.3f}'.format(eng_units_value))
except Exception as e:
print('\n', e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def plot_channel(self):
channel = self.get_chan_num()
ai_range = self.ai_props.available_ranges[0]
y_vec = np.linspace(-10, 10, 10)
x_vec = [datetime.datetime.now() + datetime.timedelta(seconds=i) for i in range(len(y_vec))]
line1 = []
while True:
rand_val = ul.a_in_32(self.board_num, channel, ai_range)
value = ul.to_eng_units_32(self.board_num, ai_range, rand_val)
y_vec[-1] = value
line1 = self.live_plotter(x_vec,y_vec,line1)
y_vec = np.append(y_vec[1:],0.0)
def display_input_values(self, range_, curr_index, curr_count):
per_channel_display_count = 1
array = self.ctypes_array
low_chan = self.input_low_chan
high_chan = self.input_high_chan
ULAIO01.channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
ULAIO01.channel_text.append("Channel " + str(chan_num) + "\n")
# If no data has been gathered, don't add data to the labels
if curr_count > 1:
chan_count = high_chan - low_chan + 1
chan_num = low_chan
# curr_index points to the start_input of the last completed channel scan that
# was transferred between the board and the data buffer. Based on this,
# calculate the first index we want to display using subtraction.
first_index = max(
curr_index - ((per_channel_display_count - 1) * chan_count), 0)
# Add (up to) the latest 10 values for each channel to the text
for data_index in range(
first_index, first_index +
min(chan_count * per_channel_display_count, curr_count)):
raw_value = array[data_index]
if self.ai_props.resolution <= 16:
ULAIO01.eng_value = ul.to_eng_units(
self.board_num, range_, raw_value)
else:
ULAIO01.eng_value = ul.to_eng_units_32(
self.board_num, range_, raw_value)
ULAIO01.channel_text[chan_num - low_chan] += (
'{:.3f}'.format(ULAIO01.eng_value) + "\n")
self.datasheet() # custom datahandling
if chan_num == high_chan:
chan_num = low_chan
else:
chan_num += 1
# Update the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
ULAIO01.chan_index = chan_num - low_chan
self.chan_labels[ULAIO01.chan_index][
"text"] = ULAIO01.channel_text[ULAIO01.chan_index]
def display_values(self, range_, curr_index, curr_count):
per_channel_display_count = 10
array = self.ctypes_array
low_chan = self.low_chan
high_chan = self.high_chan
channel_text = []
# Add the headers
for chan_num in range(low_chan, high_chan + 1):
channel_text.append("Channel " + str(chan_num) + "\n")
# If no data has been gathered, don't add data to the labels
if curr_count > 1:
chan_count = high_chan - low_chan + 1
chan_num = low_chan
# curr_index points to the start of the last completed channel
# scan that was transferred between the board and the data
# buffer. Based on this, calculate the first index we want to
# display using subtraction.
first_index = max(
curr_index - ((per_channel_display_count - 1) * chan_count), 0)
# Add (up to) the latest 10 values for each channel to the text
for data_index in range(
first_index, first_index +
min(chan_count * per_channel_display_count, curr_count)):
if self.ai_info.resolution <= 16:
eng_value = ul.to_eng_units(self.board_num, range_,
array[data_index])
else:
eng_value = ul.to_eng_units_32(self.board_num, range_,
array[data_index])
channel_text[chan_num -
low_chan] += '{:.3f}'.format(eng_value) + "\n"
if chan_num == high_chan:
chan_num = low_chan
else:
chan_num += 1
# Update the labels for each channel
for chan_num in range(low_chan, high_chan + 1):
chan_index = chan_num - low_chan
self.chan_labels[chan_index]["text"] = channel_text[chan_index]
def run_example():
board_num = 0
if use_device_detection:
ul.ignore_instacal()
if not util.config_first_detected_device(board_num):
print("Could not find device.")
return
channel = 0
ai_props = AnalogInputProps(board_num)
if ai_props.num_ai_chans < 1:
util.print_unsupported_example(board_num)
return
ai_range = ai_props.available_ranges[0]
try:
# Get a value from the device
if ai_props.resolution <= 16:
# Use the a_in method for devices with a resolution <= 16
value = ul.a_in(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units(board_num, ai_range, value)
else:
# Use the a_in_32 method for devices with a resolution > 16
# (optional parameter omitted)
value = ul.a_in_32(board_num, channel, ai_range)
# Convert the raw value to engineering units
eng_units_value = ul.to_eng_units_32(board_num, ai_range, value)
# Display the raw value
print("Raw Value: " + str(value))
# Display the engineering value
print("Engineering Value: " + '{:.3f}'.format(eng_units_value))
except ULError as e:
util.print_ul_error(e)
finally:
if use_device_detection:
ul.release_daq_device(board_num)
def update_value(self):
channel = self.get_chan_num()
ai_range = self.ai_props.available_ranges[0]
try:
if self.ai_props.resolution <= 16:
value = ul.a_in(self.board_num, channel, ai_range)
eng_value = ul.to_eng_units(self.board_num, ai_range, value)
else:
value = ul.a_in_32(self.board_num, channel, ai_range)
eng_value = ul.to_eng_units_32(self.board_num, ai_range, value)
self.value_label["text"] = str(value)
self.eng_value_label["text"] = '{:.3f}'.format(eng_value)
if self.running:
self.after(100, self.update_value)
except:
pass
def run():
DaqDeviceScan(master=tk.Tk()).mainloop()
board_num = 0
rate = 1000
points_per_channel = 30
if use_device_detection:
ul.ignore_instacal()
if not configDevice(board_num):
print("Gerät konnte nicht gefunden werden!")
return
ai_props = aiProps(board_num)
low_channel = 0
high_channel = min(7, ai_props.num_ai_chans - 1)
num_channels = high_channel - low_channel + 1
total_amount = points_per_channel * num_channels
ai_range = ai_props.available_ranges[0]
scan_opt = ScanOptions.FOREGROUND
if ScanOptions.SCALEDATA in ai_props.supported_scan_options:
scan_opt |= ScanOptions.SCALEDATA
memhandle = ul.scaled_win_buf_alloc(total_amount)
c_array = memhandle_as_ctypes_array_scaled(memhandle)
elif ai_props.resolution <= 16:
memhandle = ul.win_buf_alloc(total_amount)
c_array = memhandle_as_ctypes_array(memhandle)
else: memhandle = ul.win_buf_alloc_32(memhandle)
if not memhandle:
print("Speicher konnte nicht allokiert werden")
restart = False
try:
wr = csv.writer(open("test5.csv","w"),delimiter=";")
ul.a_in_scan(board_num, low_channel, high_channel, total_amount, rate, ai_range, memhandle, scan_opt)
print("Scan erfolgreich!")
print("Daten: ")
test = ul.a_in_32(board_num, 0, ai_range, scan_opt)
test = ul.to_eng_units_32(board_num, ai_range, test)
print("test value:")
print(test)
row_format = "{:>5}" + "{:>10}" * num_channels
labels = []
labels.append("Index")
for ch_num in range(low_channel, high_channel + 1):
labels.append("CH" + str(ch_num))
print(row_format.format(*labels))
data_index = 0
for index in range(points_per_channel):
display_data = [index]
for _ in range(num_channels):
if ScanOptions.SCALEDATA in scan_opt:
eng_value = c_array[data_index]
else:
eng_value = ul.to_eng_units(
board_num, ai_range, c_array[data_index])
data_index += 1
display_data.append('{:.3f}'.format(eng_value))
wr.writerow(display_data)
print(row_format.format(*display_data))
except ULError as e:
pass
finally:
ul.win_buf_free(memhandle)
if use_device_detection:
ul.release_daq_device(board_num)
