KB83991
Published: January 26, 2023
Revision: 2.0

Cannot configure custom Steinhart-Hart coefficients on SNAP-AIR400K-8


Applies To:

EtherNet/IP Configuration Software

Versions Affected:

All versions


Symptoms:

This is an informational KB article. The issue is very rare and can be handled with the listed workaround.

In the EtherNet/IP Configurator, you cannot configure custom Steinhart-Hart coefficients on the SNAP-AIR400K-8 thermistor module.

Workaround:

  1. Create your I/O unit configuration in the EtherNet/IP Configurator, download it to the I/O unit, and save it to flash memory.
  2. Open PAC Manager and choose Tools > Inspect.
  3. In the Device Name field, enter the I/O unit's IP address. Click the Point Config button in the left navigation.
  4. Choose the module number and point number you want to configure.
  5. Click in the Value column next to Point Type and choose Temperature from the dropdown menu.
  6. Scroll down and click the Value column next to Thermistor Curve. Choose Unknown.
  7. For each coefficient (A, B, K, C), click the Value column and enter your custom coefficient.
  8. Click the Apply button at right.
  9. Save the configuration to flash memory: Click the Status Write button, under Operation highlight "Store configuration to flash", and click Send Command.

Questions?

Contact: Opto 22 Product Support.
Phone: 800-835-6786 or 951-695-3080
Email: support@opto22.com


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