In addition to the methods described in the LabVIEW API topic Invoke Method, you can use the Read TEDS method with the LabVIEW API Invoke Method function for CompactRIO devices.

Read TEDs Method

Read TEDS method reads TEDS[1]1 Transducer Electronic Data Sheet. A TEDS contains the critical information needed by an instrument or measurement system to identify, characterize, interface, and properly use the signal from an analog sensor. information from a C Series module that has TEDS support enabled.

  • Connector—specifies the connector to which the NI 9151 R Series Expansion chassis is connected. This input is available only when the Open FPGA VI Reference function is configured for an R Series device. For the NI 781xR, valid values are 0 through 3.
  • Slot—specifies the chassis slot of the C Series module from which you want to read TEDS information. If the slot does not have a C Series module that supports this feature, LabVIEW returns an error. Valid values are 1 through N, where N is the number of slots in the chassis.
  • Channel—specifies the channel on the module from which you want to read TEDS information. If a sensor is not connected to the channel, the Invoke Method function returns an error. For the NI 9219, NI 9233, NI 9234, and NI 9237, valid values are 0 through 3 .
  • TEDS Binary—represents the TEDS information of the sensor connected to the specified channel in an array of bits. Use the TEDS Toolkit to parse this data.
  • v0.9 (TEDS)—determines whether the sensor stored in the TEDS is in the released IEEE 1451.4 standard format or in the legacy version (v0.9) format. v0.9 returns TRUE if the TEDS is in the legacy format. The TEDS Toolkit VIs require this output to properly parse information.

    • 1 Transducer Electronic Data Sheet. A TEDS contains the critical information needed by an instrument or measurement system to identify, characterize, interface, and properly use the signal from an analog sensor.