A-2
Appendix A: Module Specifications
User’s Manual Pub. 0300272-03 Rev. B
Performance Requirements
Number of Outputs
Two Isolated Outputs
Configuration
Defined by configuration word
Output ranges
0 to 20 mA and 4 to 20 mA (HART available only on 4-20 range)
Output load
0 to 750 ohms max; 200 to 750 ohms for HART
Resolution
16 bits across 21 mA to 320 mA
Data format
Signed Integer
Conversion type
R ladder DAC
Full scale settling time
<100 ms to 95% with resistive loads
Differential nonlinearity
±0.05% full scale
Output ripple
±0.05%, or better full scale 0 to 50 kHz
Repeatability (HART disabled) ±0.05% full scale
Max inductive load
(current outputs)
10 uH
Output impedance
>10 Kohms at 1 kHz>1 k at 10 kHz; > 10 Megaohms at DC
Accuracy
Range
Temperature
Accuracy (% Full Scale)
0 to 21 mA extended 25 °C
0.15% FS
0 to 21 mA extended -20 °C to 55 °C 0.30% FS
Long term drift
Power on/off channel glitch
Under ±1 V for 2 ms or ±2.5 V for 400 uS. Target: ±0.5 V spike for less than 5 ms
Open and short circuit
protection
Yes, continuous. (IEC 1131-2 requirement)
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Страница 68: ...4 32 Chapter 4 OE2CIH and HART User s Manual Pub 0300272 03 Rev B ...
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