KB83991
Published: November 20, 2015
Revision: 1.0

Cannot configure SNAP-AIR400K-8 for Steinhart-Hart coefficients


Applies To:

EtherNet/IP Configuration Software

Versions Affected:

Problem affects: All versions


Symptoms:

In the EtherNet/IP Configurator, you cannot configure the SNAP-AIR400K-8 thermistor module to show correct temperatures with Steinhart-Hart coefficients.

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.

Resolution:

Opto 22 is investigating this issue.

Questions?

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


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