Introducing Message-Based DAQ

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CAL 1 Message Device response Description "AISCAN:CAL=value" "AISCAN:CAL" Enables or disables calibration of the A/D data. value = ENABLE or DISABLE Example: "AISCAN:CAL=ENABLE" "?AISCAN:CAL" "AISCAN:CAL=value" Returns a value indicating whether calibration coefficients will be applied to the raw A/D data. value = ENABLE or DISABLE Example: "?AISCAN:CAL" 1 These messages are processed by the DAQFlex Software library, and are not sent to the device. SCALE 1 Message Device response Description "AISCAN:SCALE=value" "AISCAN:SCALE" Enables or disables scaling of the A/D data. value = ENABLE or DISABLE Example: "AISCAN:SCALE=ENABLE" "?AISCAN:SCALE" "AISCAN:SCALE=value" Returns a value indicating whether scaling will be applied to the A/D data. value = ENABLE or DISABLE 1 These messages are processed by the DAQFlex Software library, and are not sent to the device. Working with the CAL and SCALE properties The ENABLE/DISABLE setting of the CAL and SCALE properties affect the kind of data that is returned: • CAL=DISABLE, SCALE=DISABLE If CAL and SCALE are both disabled, the data returned will be raw A/D integer values within the range of 0 to 2 res olution -1 of the device. If the calibration factors are stored on the device and applied to the data by the application software, the data range may be limited to well within these values. • CAL=ENABLE, SCALE=DISABLE When CAL is enabled and SCALE is disabled, the format of the analog data returned will depend on the type of calibration implemented. If the calibration factors are stored on the device and applied to the data by the application software, the data will be floating point values, not integer values, and may exceed the theoretical limits and include negative values and values above 2 res olution -1. • SCALE=ENABLE When SCALE is enabled, scaled floating point values are returned. The limits of the data will depend on the implementation of calibration, as described above. Data range limits may be a small percentage less than or greater than the full scale range selected for devices for which the calibration factors are stored on the device and applied to the data by the application software. Page 26 of 43
AITRIG Sets and gets analog input trigger property values. Properties TYPE, REARM The tables below list the messages used to get and set device parameters, the device response to each message, a description of the message, and the variable(s) the message may contain. Note: Refer to the device-specific information in the Hardware Reference section for the component properties and commands supported by each DAQ device. TYPE Message Device response Description "AITRIG:TYPE=value" "AITRIG:TYPE" Sets the edge trigger type. value = EDGE/RISING or EDGE/FALLING Example: "AITRIG:TYPE=EDGE/RISING" "?AITRIG:TYPE" "AITRIG:TYPE=value" Returns the edge trigger type. value = EDGE/RISING or EDGE/FALLING REARM Message Device response Description "AITRIG:REARM=value" "AITRIG:REARM" Sets the state of the retrigger mode. value = ENABLE or DISABLE Example: "AITRIG:REARM=ENABLE" "?AITRIG:REARM" "AITRIG:REARM=value" Returns the state of the retrigger mode. value = ENABLE or DISABLE Note • When running the DAQFlex test application, AITRIG messages are listed on the AISCAN tab. Page 27 of 43
Page 11 and 12: Analog input scan operation C# Visu
Page 13 and 14: DEV Sets and gets device property v
Page 15: RESET Message Device response Descr
Page 19 and 20: SCALE 1 Message Device response Des
Page 21 and 22: SAMPLES Message Device response Des
Page 23: LOWCHAN Message Device response Des
Page 28 and 29: AO Sets and gets property values fo
Page 30 and 31: DIO Sets and gets property values f
Page 34 and 35: Note: Click Send Message after chan
Page 42 and 43: Programming and developing applicat

Introducing Message-Based DAQ

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