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Job Editor

Use the Job Editor to create a new job or to modify the configuration settings of an existing job. The Job Editor opens when users select the New Job icon or the Edit Job icon from the Data Logger Schedule tab toolbar.

The Job Editor provides a series of tabs to configure channel, acquisition, logging, alarm, and event settings. When a job includes strain or bridge channel types users can perform offset null calibration on bridge-based sensors before acquiring data. Users can advance through the tabs sequentially using the Next button, or tap the Finish button on any tab to save the settings in the job and close the Job Editor.

Each saved job appears in the job list on the Data Logger window. Use the Schedule tab toolbar to duplicate jobs, save job settings to a file, and import job settings from one job to another.

Job Editor Channels tab Job Editor Channels tab Job Editor Channels tab

The job name is set by default to Job1. Users can enter a new name in the Job Name field.

Channels

Use the Channels tab to view the channels included in the job, add or remove channels, and customize channel properties. The channels list includes the name and type of each channel added to the job.

Channels Tab Toolbar
Add Displays the channel types users can add to the acquisition. When a channel type is selected, a Selected Channel(s) dialog box opens for users to choose the channel number. A channel can only be added once. Click OK to add it to the channel list and display its properties. Refer to Channel Properties below for the specific options users can customize for each channel type.
RemoveRemoves the selected channel from the channel list. Note that any channel configured as a trigger source or alarm source cannot be removed until the trigger or alarm is deleted or its source is changed to another channel.
ImportImports the channel list from another job in the job list. Tap the down arrow to select the job list to import from. The Import option is only enabled when the channels list is empty (does not contain any channels).
Move Up
Move Down
Moves the selected channel up or down in the channel list. The order of the channel list sets the order of items in the display and in data when it is exported.

Channel Properties

Common Properties
Channel NameEnter a channel name. For display purposes, enter a name less than 18 characters. This value appears in the channel list.
RangeSelect the range from the drop-down list. The values that display are specific to the connected device.Select the range from the drop-down list. The values that display are specific to the connected device. Range displays for all channel types except Thermocouple and RTD.
Units For thermocouple channel types select the unit from the drop-down list.For thermocouple and RTD channel types select the unit from the drop-down list. For voltage all all other channel types either select the unit from the drop-down list or enter a custom unit such as 'mV' or 'μV'. Custom units are particularly useful when using a multiplier (see 'Custom Scaling').
Custom ScalingEnable this checkbox to display Multiplier and Offset text boxes for entering custom gain and offset values for acquired data. When enabled, the vertical axis of the strip chart automatically adjusts to reflect the data being plotted. The multiplier is used to calculate the y-axis upper and lower ranges. The offset value is used to offset each data point.
Display colorThe color applied to channel data on the Dashboard. Tap to open a color palette and select a color.
Thermocouple Properties
TC Type Select the thermocouple type: J, K, B, N, S, T, R, or E.
Voltage Properties
RangeSelect the range from the drop-down list. The values that display are specific to the connected device.
CouplingSelect AC or DC. Configure for DC if the signal has no offset voltage or if the DC content of the acquired signal is important.
IEPE Properties
Sensor SensitivityEnter the sensitivity in mV/unit.
Note: AC coupling is automatically enabled for IEPE channels.
RTD Properties
R0Select the sensor resistance in ohms at 0° C for the Callendar-Van Dusen equation. Refer to the sensor documentation for this constant.
RTD TypeSelect the type of RTD sensor connected to the channel.
Wiring ConfigurationSelect the configuration for resistance measurements: 3-wire or 4-wire.
Callendar - Van Dusen CoefficientsThe constants used by the Callendar-Van Dusen equation to measure the RTD temperature. The constant values update according to the RTD Type selected.
Resistance Properties
Wiring ConfigurationSelect the configuration for resistance measurements: 2-wire or 4-wire.
Thermocouple Properties
Wiring ConfigurationSelect the thermocouple type: J, K, B, N, S, T, R, or E.
Bridge Properties
Bridge TypeSelect the bridge configuration connected to the channel:
  • Full Bridge: Four active sensing elements in the bridge.
  • Half Bridge: two active sensing elements in the bridge.
  • Quarter Bridge: One active sensing element in the bridge.
Bridge ResistanceThe resistance of the bridge sensor while not under load. Displays only when Bridge Type is set to Quarter Bridge.
Strain Properties
Strain TypeSelect the bridge configuration connected to the channel:
  • Full Bridge I: Four active strain gauges, with two pairs subjected to equal and opposite strains; measures bending strain only.
  • Full Bridge II: Four active strain gauges with two aligned with maximum principal strain and two Poisson gauges in adjacent legs; measures bending strain only.
  • Full Bridge III: Four active strain gauges with two aligned with maximum principal strain and two Poisson gauges in opposite legs; measures axial strain only.
  • Half Bridge I: Two active strain gauges with one aligned with maximum principal strain gauge and one Poisson gauge; measures axial or bending strain.
  • Half Bridge II: Two active strain gauges with equal and opposite strains; measures bending strain only.
  • Quarter Bridge I: Single active strain gauge; measures axial or bending strain.
  • Quarter Bridge II: Single active strain gauge and one dummy gauge; measures axial or bending strain.
Gauge FactorThe sensitivity of the strain gauge. This value relates the change in electrical resistance to the change in strain.
Gauge ResistanceThe nominal value of each resistance arm. This property only displays when Strain Type is set to half or quarter bridge types.
Lead ResistanceThe resistance of the lead wires that connect to the strain gauge. This resistance can usually be compensated by performing an offset null calibration (refer to the Calibration section below). This property only displays when Strain Type is set to half or quarter bridge types.
Poisson RatioThe ratio of lateral strain to axial strain in the material in which you are measuring strain. This property displays only when Strain Type is set to full or half bridge types.
Acquisition

Use the Acquisition tab to set the sample rate, auto zero mode,, ADC timing mode, and acquisition start and stop settings.

Job Editor Acquisition tab

Job Editor Acquisition tab

Job Editor Acquisition tab

Notes on numeric values
Unexpected results may occur when attempting to change a value. Refer to the following information for best results:
  • Use the dash sign (-) to toggle between positive and negative values.
  • When changing a numeric value, numbers may shift to the right. The easiest way to change a value is to highlight the whole value, press the Delete key, and enter a new value.
Acquisition Tab
Sample RateEnter a value in Hz.
Auto ZeroSpecify whether to perform auto zero and compensate for offset errors. When enabled, the internal voltage offset is subtracted from each thermocouple reading, resulting in a more accurate measurement.
  • None: do not perform auto zero.
  • Every Sample: Perform auto zero on every thermocouple reading.
ADC Timing ModeSpecify the timing mode used to acquire data for all channels. The timing mode controls the tradeoff between speed and resolution. Select from the available modes:
  • High Resolution: Increases the resolution and noise rejection while decreasing the conversion rate.
  • High Speed: Increases the conversion rate while decreasing the resolution.
  • 50 Hz Rejection: Improves 50 Hz noise rejection while decreasing noise rejection at other frequencies.
  • 60 Hz Rejection: Improves 60 Hz noise rejection while decreasing noise rejection at other frequencies.
Start SettingsSelect the criteria to start the acquisition:
  • Immediate: The acquisition starts when users tap Run All or run a job.
  • Date/Time: The acquisition starts when date and time criteria are met. Enter values directly or use the selector controls to set the date and time. Note: The default time is synchronized with the PC.
  • Digital Trigger: The acquisition starts when an external digital signal meets the trigger criteria. Select the digital bit and trigger type, and enter the number of samples to acquire before the trigger occurs. Refer to Trigger Types below for information about each type.
  • Analog Trigger: The acquisition starts when an external analog signal meets the trigger criteria. Select the analog channel and trigger type, enter threshold values as required, and enter the number of samples to acquire before the trigger occurs. Refer to Trigger Types below for information about each type.
  • FFT Trigger: The acquisition starts when an external FFT signal meets the trigger criteria. Select the input channel, FFT size and window type, enter the frequency and threshold values as required, and enter the number of samples to acquire before the trigger occurs. Refer to Window Types below for information about each window type.
    Note that the window type set here is independent from the window type users can apply to displayed data with the FFT Plot Settings dialog box.
  • Push Button: The acquisition starts when the device FUNC button is pressed.
Stop SettingsSelect the criteria to end the job:
  • Duration: The job ends when the specified number of samples are read. The duration dynamically updates with the time entered.
  • Date/Time: The job ends when date and time criteria are met. Enter values directly or use the selector controls to set the date and time. Note: The default time is synchronized with the PC.
  • Digital Trigger: The job ends when an external digital signal meets the trigger criteria. Select the digital bit and trigger type. For pre-trigger data, enter the number of samples to acquire before a trigger occurs. Refer to Trigger Types below for information about each type.
  • Analog Trigger: The job ends when an external analog signal meets the trigger criteria. Select the analog channel and trigger type. For pre-trigger data, enter threshold values as required. Refer to Trigger Types below for information about each type.
  • FFT Trigger: The job ends when an external FFT signal meets the trigger criteria. Select the input channel, FFT size, and window type, and enter the frequency and threshold values as required. Refer to Window Types below for information about each window type.
  • Manual: The job ends when this job is stopped from the job list on the Data Logger window.
  • Push Button: The job ends when the device FUNC button is pressed.

Trigger Types

Digital Trigger
Source Select the digital bit to trigger (start/stop) the job.
TypeRising Edge: Start or stop on the digital edge of a rising pulse.
Falling Edge: Start or stop on the digital edge of a falling pulse.
Low: Start or stop when the external digital trigger is 0V (logic low or 0).
High: Start or stop when the external digital trigger is 5V (logic high or 1).
Analog Trigger
SourceSelect the analog input to trigger (start/stop) the job.
TypeAbove: Start or stop when the reading at the selected Source channel goes above the Threshold.
Below: Start or stop when the reading at the selected Source channel goes below the Threshold.
Inside Window: Start or stop when the reading at the selected Source channel is above the Low Threshold and below the High Threshold.
Outside Window: Start or stop when the reading at the selected Source channel is below the Low Threshold or above the High Threshold.
Slope Positive: Start or stop when the reading at the selected Source channel transitions from below the Low Threshold to above the High Threshold.
Slope Negative: Start or stop when the reading at the selected Source channel transitions from above the High Threshold to below the Low Threshold.
 
Pre-Trigger Sample CountThe number of samples to acquire before the trigger occurs.
TimeoutThe time in seconds to wait before stopping a job. When multiple jobs are defined in a schedule and one job times out, the next job automatically runs according to its configured properties.

Window Types

NoneRecommended for use when the signal content contains random (white) noise or closely spaced sine waves.
Hann Bell-shaped cosine window typically used to analyze continuous signals. Recommended for use when the signal content contains sine waves, a combination of sine waves, vibration data consisting of narrow band random signals, or unknown content.
HammingBell-shaped cosine window optimized to minimize the maximum (nearest) side lobe. Recommended for use when the signal content consists of closely spaced sine waves.
Blackman-HarrisSimilar to a Hann window, this window has slightly wider main lobe but much better dynamic signal range. It is optimized to provide the minimum side lobe level.
BlackmanSimilar to the Hann and Hamming windows, this window has slightly wider central lobes and less sideband leakage.
Flat topOptimized for measuring peak amplitudes of discrete spectral components that are separated by several spectral lines. Recommended for use when the signal consist of sine waves and amplitude accuracy is important.
Calibration

When a job includes strain or bridge channel types, users can perform an offset null calibration to compensate for the resistance of the lead wires that connect to the sensor.

Job Editor Acquisition tab

For best results, ensure that the sensor is at rest prior to measuring the offset (apply no force, pressure, or torque).

To perform the offset null calibration, enable the checkbox of each channel that you want to to calibrate and tap Measure*. The offset value is calculated and shown on the Measured column. You can accept this value or manually enter a value.

Tap Apply button to accept and apply the value. The Applied column updates with the value.


Tap the Job Editor Finish button to save the applied offset value(s) in the job.

Logging

Use the Logging tab to configure data logging and to set logging options. Acquired data is logged to a binary WebDAQ data *.wdd file. Users can save logged data to a WebDAQ storage location or to a mapped network storage location.

Acquiring data at higher speeds can generate large data files. The maximum file capacity of external media formatted with the FAT32 file system is 4 GB. If the log file on FAT32 media exceeds 4 GB, a "File too large" error is returned and the acquisition stops. If you expect to acquire a large amount of data to a single file when logging to external media, reformat the media using a different file system such as NTFS before starting the logging session. Refer to the Frequently Asked Questions (FAQs) topic for more information about file systems.

Job Editor Logging tab

Logging Tab
Log File OptionsSpecify where to save data and whether to append or overwrite data:
  • Log File Name: The location and name of the data file. Tap Browse to enter a filename and specify where to save the file — choose from Internal Storage, any available SD card or USB storage device, or Network Storage on a mapped network storage location. Icons are provided to create subfolders, refresh the file list, and navigate the folder hierarchy.
    External media must be inserted for the external options to display. Network storage locations must be mapped to WebDAQ for network storage types to display. Use the Device window Storage tab to map a network storage location.
    Depending on the current security level, users may be prompted to enter a password when selecting a storage location.
    Logged data is saved by default to the device internal memory as JobName.wdd.

    Note: Since the speed of the connection to a network folder or FTP server varies, logging directly to network storage may cause data overruns.

  • Append Date/Time to File name: Appends the date and time to the filename. Enabled by default. Disable to overwrite the data file upon each run of the job.
  • Remove Empty Log File: If no sample is acquired during the acquisition, the log file is deleted when the acquisition completes.
  • Notes: Optional information about the job that displays in the file header of the data file.

Use the Alarms tab to add an alarm, set alarm conditions, and specify the action(s) to take when an alarm is triggered, such as send an email or text notification, set the status of a digital bit, or run a specific job.


Job Editor Alarm tab Job Editor Alarm tab Job Editor Alarm tab
Notes on numeric values
Unexpected results may occur when attempting to change a value, such as numbers shifting to the right. Refer to the following information for best results:
  • Use the dash sign (-) to toggle between positive and negative values.
  • The easiest way to change a value is to highlight the whole value, press the Delete key, and enter a new value.
Alarms Tab
New Adds a new Alarm # tab with configurable options.
NameThe name assigned to the alarm. Keep the default or enter a new name. For display purposes, enter a name less than 18 characters.
TypeThe input type to use for the alarm.
SourceThe channel used to trigger the alarm.
 FFT channels can only trigger one alarm.
ConditionsThe conditions that trigger the alarm:
  • Type: The alarm type. The list is populated with the types available for the selected alarm input type. Refer to Alarm Conditions for the available alarm condition types.
  • Reset: Enable this checkbox to clear the alarm when the alarm condition is false for the specified interval.
ActionsSpecify the action(s) to take when an alarm condition occurs. Use the ON/OFF toggle switch to enable each action. Descriptions when enabled are listed here:
  • Log to File: Saves alarm data in a *.txt file. Specify the name and location where to save the file. Alarm data is saved by default to the device internal memory as JobName.txt. Note that alarm and event information can be logged to the same text file.
  • Email or SMS Message: Sends a notification that an alarm occurred via email. Specify the SMTP server from those defined on the Email/SMS tab. For email notification, add one or more email addresses (separated by semicolons). For text, add one or more phone numbers and the associated SMSGateway. Click the "Retry On Error" option to force the WebDAQ to keep trying in the event of a connection error. Refer to the Device window Email/SMS tab for more information about notification options.
  • Jump to Job: Ends the current job, and starts the specified job when an alarm condition occurs.
  • Digital Output: Sets a digital bit high or low when an alarm condition occurs.

Alarm Conditions

Analog
SourceThe analog channel used to trigger the alarm.
Alarm TypeAbove: Triggers an alarm when the reading at the selected Source channel goes above the Threshold.
Below: Triggers an alarm when the reading at the selected Source channel goes below the Threshold.
Inside Window: Triggers an alarm when the reading at the selected Source channel is within the range defined by the Low and High Threshold.
Outside Window: Triggers an alarm when the reading at the selected Source channel is outside of the range defined by the Low and High Threshold.
Slope Positive: Triggers an alarm when the reading at the selected Source channel transitions from below the Low Threshold to above the High Threshold.
Slope Negative: Triggers an alarm when the reading at the selected Source channel transitions from above the High Threshold to below the Low Threshold.
Digital
SourceThe digital bit used to trigger the alarm. This cannot include any bit used as an alarm action.
Alarm Type Rising Edge: Triggers an alarm on the rising edge of a digital pulse. The alarm condition remains true as long as a rising edge is detected within the reset period (defaults to 1 second).
Falling Edge: Triggers an alarm on the falling edge of a digital pulse.
Low: Triggers an alarm when the external trigger is 0V (logic low or 0).
High: Triggers an alarm when the external trigger is 5V (logic high or 1).
FFT Band Power
SourceThe FFT channel used to trigger the alarm.
FFT Size

Specifies how many data points to use when generating the FFTs for the analog input channels. Tap the down arrow and select a value from the list.

Window TypeNone: Recommended for use when the signal content contains random (white) noise or closely spaced sine waves.
Hann: Bell-shaped cosine window typically used to analyze continuous signals. Recommended for use when the signal content contains sine waves, a combination of sine waves, vibration data consisting of narrow band random signals, or unknown content.
Hamming: Bell-shaped cosine window optimized to minimize the maximum (nearest) side lobe. Recommended for use when the signal content consists of closely spaced sine waves.
Blackman-Harris: Similar to a Hann window, this window has slightly wider main lobe but much better dynamic signal range. It is optimized to provide the minimum side lobe level.
Blackman: Similar to the Hann and Hamming windows, this window has slightly wider central lobes and less sideband leakage.
Flat top: Optimized for measuring peak amplitudes of discrete spectral components that are separated by several spectral lines. Recommended for use when the signal consist of sine waves and amplitude accuracy is important.
BandInside: Triggers an alarm when the reading is within the range defined by the Low and High Frequency.
Outside: Triggers an alarm when the reading is outside of the range defined by the Low and High Frequency.
TypeAbove: Triggers an alarm when the reading at the selected Source channel goes above the Threshold.
Below: Triggers an alarm when the reading at the selected Source channel goes below the Threshold.

Use the Events tab to enable execution of one or more actions when specified events occur. Up to four event types can be specified for a job. Each event can have up to four actions associated with it that will be executed when the event occurs.

The default action selected when an event type is added is "Log to File".


Job Editor Events tab

Events Tab
New Adds a new Event # tab with configurable options.
NameThe name assigned to the event. Keep the default or enter a new name. For display purposes, enter a name less than 18 characters.
TypeThe type of event used to trigger an action. Select from the list of event types:
  • Job Started: The specified action(s) are executed when a job is started via the Schedule or manually started.
  • Job Stopped: The specified action(s) are executed when a job is completed or manually stopped.
  • Trigger Occurred: The specified action(s) are executed when a trigger event occurs.
  • Error Occurred: The specified action(s) are executed when an error event occurs.
ActionsSpecify the action(s) to take when a specified event occurs. Use the ON/OFF toggle switch to enable each action. Descriptions when enabled are listed here:
  • Log to File: Saves event data in a *.txt file. When enabled, event data is saved by default to the device internal memory as JobName.txt. Users can specify a different name and location to save the file.
    Each event written to the file is appended, including repeated runs of the job. Note that event and alarm information can be logged to the same file.
  • Email or SMS Message: Sends a notification that an event occurred via email or text message. Specify the SMTP server from those defined on the Device window Email/SMS tab. For email notification, add one or more email addresses (separated by semicolons). For text, add one or more phone numbers and the associated SMSGateway. Click the "Retry On Error" option to force the WebDAQ to keep trying in the event of a connection error. For more information about notification options, refer to the Email/SMS discussion in the Device topic.
  • Digital Output: Sets a digital bit high or low when the specified event type occurs.
  • Transfer Data File: Selectable only when the event type is Job Stopped. When enabled, copies or moves the log file specified by the Logging tab to a specified location. Note that the Append Date/Time to File Name logging option must be enabled before the data file can be transferred.