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Digilent WebDAQ 316 User Manual

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WebDAQ 316 User's Guide
June 2024
About this User's Guide
What you will learn from this user's guide
This user's guide describes the WebDAQ 316 data acquisition device, the WebDAQ web interface, and lists device
specifications.
Where to find more information
Additional information about the WebDAQ
digilent.com. You can also contact Digilent with specific questions.
•
WebDAQ web interface: Open the Help window for information about using WebDAQ software.
•
WiFi adapters approved for use with the WebDAQ Series:
•
Tech support:
Digilent Forum
For international customers, contact your local distributor. Refer to the
website.
Hazardous voltages
Take the following precautions if you connect hazardous voltages to the WebDAQ 316 spring
terminals. A hazardous voltage is a voltage greater than 42.4 Vpk or 60 VDC to earth ground.
•
Ensure that hazardous voltage wiring is performed only by qualified personnel adhering to local
electrical standards.
•
Do not mix hazardous voltage circuits and human-accessible circuits on the same device.
•
Make sure that devices and circuits connected to the WebDAQ 316 are properly insulated from
human contact.
When device terminals are hazardous voltage LIVE (>42.4Vpk/60 VDC),
terminal backshell (not included)
connected to the WebDAQ 316 are properly insulated from human contact.
Hazardous locations: The WebDAQ 316 is not certified for use in hazardous locations.
Other product and company names mentioned may be trademarks of their respective owners.
Series of internet enabled data loggers
to ensure that the terminals are not accessible and that the devices and circuits
Copyright Digilent, Inc. All rights reserved.
is available on our website at
USB WiFi Adapters
International Distributors section
you must install a high voltage screw
1300 Henley Court
Pullman, WA 99163
www.digilent.com
on our
Page
1
of 29

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Summary of Contents for Digilent WebDAQ 316

  • Page 1 June 2024 About this User’s Guide What you will learn from this user’s guide This user’s guide describes the WebDAQ 316 data acquisition device, the WebDAQ web interface, and lists device specifications. Where to find more information Additional information about the WebDAQ...

  • Page 2: Introducing The Webdaq 316

    • Mobile support – access the WebDAQ 316 from any device with a web browser, such as a phone or tablet • Remote monitoring and control •...
  • Page 3 169.254.100.100 – the link-local address stored on the device. The host PC may accept this address or use a different address. The link-local address is valid only for communications between the WebDAQ and the host PC to which it is connected. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 4: Connecting The External Power Adapter

    The latest version of Chrome, Firefox, Safari, UC Browser, or Opera recommended. Compatible with the Edge browser version 79 and up. Not recommended for use with earlier versions of the Edge browser. Not recommended for use with Internet Explorer. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 5: Configuring The Webdaq For Wireless Communication

    Changing to a wireless network may require a reboot If a connection cannot be established after changing the network, you may need to reboot the operating system and restart the WebDAQ using the Power button. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 6: Configuring The Network Router For Communication Across Networks

    Parameter Specification IP address 192.168.0.101 Subnet mask 255.255.255.0 Gateway 192.168.0.1 DHCP setting DHCP + link-local enabled Security level Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 7: Functional Details

    Shared folders and mapped drives are reset when factory defaults are restored Functional Details Functional block diagram Device functions are illustrated in the block diagram shown here. Figure 2. WebDAQ 316 functional block diagram Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 8: Front Panel Components

    (COM) to the 36-position detachable spring terminal. Caution! We strongly recommend that you ground yourself using a wrist strap before handling thermocouple sensors. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 9: Thermocouple Connections

    A thermocouple consists of two dissimilar metals that are joined together at one end. When the junction of the metals is heated or cooled, a voltage is produced that correlates to temperature. The WebDAQ 316 supports type J, K, S, R, B, E, T, N thermocouples (TC), and provides overvoltage protection between any two inputs. A typical thermocouple connection is shown in the following figure.

  • Page 10: Analog Input Circuitry

    Thermocouples with a longer lead length can introduce more significant errors. Overvoltage protection WebDAQ provides 30 V overvoltage protection between any two inputs. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 11: Thermocouple Measurement Accuracy

    WebDAQ 316 terminals for configuration with the terminals facing forward or upward. Auto zero channel The WebDAQ 316 has an internal auto zero channel to compensate for offset errors. When enabled, the WebDAQ measures the autozero channel and subtracts that measurement from the measurement of each thermocouple channel.

  • Page 12: External Power Connector

    When a job is configured to log data to external media, pressing FUNC while the job is running will not eject the media. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 13: Led Status Indicators

    LED states – software update mode State Description All LEDs Solid yellow Software update is starting POWER Blinking yellow Software update is running Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.
  • Page 14 Use a self-powered hub if the current requirement of external media exceeds 500 mA. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 15: Logging Data

    5. Remove the two front panel bezel screws and remove the front bezel. 6. Slide out the circuit board with the front panel intact. 7. Remove jumper W1 from the specified location shown below. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 16: Replacing The Battery

    4. Remove the nut and washer from the EXT PWR connector. 5. Remove the two front panel bezel screws and remove the front bezel. 6. Slide out the circuit board with the front panel intact. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 17: Updating Webdaq Firmware

    6 digits of the MAC address – see the label on the bottom of the enclosure. In the web server’s Help, refer to the “Updating WebDAQ Firmware” topic or FAQ for instructions. Calibrating the hardware The Digilent Test department performs the initial factory calibration. Contact Digilent when calibration is required.
  • Page 18 The device is lying flat or facing upward, at a Warm-up time 15 minutes recommended constant ambient temperature. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 19: Temperature Measurement Accuracy

    Type R, S: <2.8 °C The following figures show the errors for each thermocouple type when connected to the WebDAQ 316 with auto zeroing performed. The figures display the maximum error over a full temperature range, and the typical error at room temperature.
  • Page 20 WebDAQ 316 User’s Guide Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 21: Digital Input/Output

    Power on reset is input mode Pull-up configuration Each bit is pulled up to 5 V with a 100 kΩ resistor Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 22: Ethernet Connection

    100 kΩ pull-up resistor of that particular digital input/output bit to the internal 5 V supply. Careful consideration should be made when considering the external pull-up resistor value and the resultant pull-up voltage produced at the load. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 23: Network Configuration

    Memory Flash: 4 GB eMMC (3 GB available for user data storage) Shared folders and mapped drives are reset when factory defaults are restored. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 24: Usb Ports

    No error is detected, or the device is off. The USB ports are provided for connection to a mass storage device or approved WiFi adapter. Use the WebDAQ software to configure start and stop settings for jobs and schedules. Copyright Digilent, Inc. All rights reserved. Page of 29...

  • Page 25: Push Buttons

    (default) Refer to this circuit board image for the location of the W1 jumper. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.
  • Page 26 If using a different supply, ensure that it has a positive center pin. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 27: Safety Voltages

    This category is for measurements of voltages from specially protected secondary circuits. Such WebDAQ operation is intended for indoor use only, but may be used outdoors if installed in a suitable enclosure. Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.

  • Page 28: Signal Connectors

    MAINS building installations of Measurement Categories CAT II, CAT III, or CAT IV. Caution! Do not connect the WebDAQ 316 to signals or use it for measurements within Measurement Categories II, III or IV.
  • Page 29 TC14[+] Channel 14 HI TC14[–] Channel 14 LO TC15[+] Channel 15 HI TC15[–] Channel 15 LO Common Common Copyright Digilent, Inc. All rights reserved. Page of 29 Other product and company names mentioned may be trademarks of their respective owners.