Rockwell Automation 1746-FIO4V SLC 500 Fast Analog I/O/ User Manual User Manual
Page 79

Publication 1746-UM009B-EN-P - September 2007
Module Specifications 79
Overall Accuracy at 25 °C (77 °F)
±0.440% of full scale
Overall Accuracy at 60 °C (140 °F)
±0.750% of full scale
Overall Accuracy Drift
±88 ppm/°C (max)
Gain Error at 25 °C (77 °F)
±0.323% of full scale
Gain Error at 0…60 °C (32…140 °F)
±0.530% of full scale
Gain Error Drift
±79 ppm/°C (max)
Offset Error at 0…60 °C (32…140 °F)
±4 LSB (max)
Offset Error at 25 ° C (77 °F)
±2 LSB (typical)
Offset Error Drift
±0.14 LSB/°C (max
(1)
)
Overvoltage Protection (IN+ to IN–)
220V dc or ac RMS, continuously
(1)
Computed by box method: 2 [max offset error] / 60 °C
Current-loop Input Specifications - 1746-FIO4I, 1746-FIO4V
Description
Specification
Input Operating Range
0…20 mA (nom)
0…30 mA (max)
Input Voltage
±7.5V dc or ac RMS (max)
Current Input Coding Range (0…20 mA)
0…2047 counts
Input Impedance
250
Ω
(nom)
Resolution
9.7656 µA per bit
Overall Accuracy at 25 °C (77 °F)
±0.510% of full scale
Overall Accuracy at 60 °C (140 °F)
±0.850% of full scale
Overall Accuracy Drift
±98 ppm/°C of full scale (max)
Gain Error at 25 °C (77 °F)
±0.400% of full scale
Gain Error at 0…60 °C (32…140 °F)
±0.707% of full scale
Gain Error Drift
±89 ppm/°C (max)
Offset Error at 0…60 °C (32…140 °F)
±4 LSB
Offset Error at 25 °C (77 °F)
±2 LSB (typical)
Offset Error Drift
±0.14 LSB/°C (max
(1)
)
(1)
Computed by box method: 2 [max offset error] / 60 °C
Overvoltage Protection
7.5V ac RMS (max)
Voltage Input Specifications - 1746-FIO4I, 1746-FIO4V
Attribute
Value