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EL3204-0162 | 4-channel analog input terminal, 2 x Pt100 (RTD) and 2 x -10...+10 V, 12 bit, single-ended · 0 次阅读

Underrange (index 0x6020:01 / 0x6030:01), Overrange (index 0x6020:02 / 0x6030:02)

Underrange and overrange of the measuring range

  • Underrange:
    The bits in index 0x6020:01 / 0x6030:01 (underrange bit) and index 0x6020:07 / 0x6030:07 (error bit) are set.
    • Indicates that the output value is below -256 (approx. 0.8 % of end value; -32767 for bipolar terminals).
    • The output value is limited to 0 (-32768).
    • For bipolar terminals underrange is also set if the ADC outputs the lower limit value.
  • Overrange:
    The bits in index 0x6020:02 / 0x6030:02 (overrange bit) and index 0x6020:07 / 0x6030:07 (error bit) are set.
    • Indicates that the output value is above 32768.
    • The output value is limited to 32768.
    • Overrange is also set if the ADC outputs the upper limit value.

For overrange or underrange the red error LED is switched on.