Specifications

Publication 1747-SG001E-EN-E - February 2013
22 Select SLC 500 I/O Modules
10 Hz 73 ms + module update time 110 ms + module update time 120 ms + module update time
20 Hz 36.5 ms + module update time 55 ms + module update time 60 ms + module update time
50 Hz 14.5 ms + module update time 22 ms + module update time 24 ms + module update time
75 Hz 10 ms + module update time 15 ms + module update time 18 ms + module update time
no filter 0.5 ms + module update time 0.75 ms + module update time 0.75 ms + module update time
(1) The module accuracy for current inputs is 0.05%, and for voltage inputs is 0.1%.
Input Step Response for 1746-NI8
Filter
Frequency
Step Response for 1746-NI8
1% Accuracy
(1)
0.1% Accuracy
(1)
0.05% Accuracy
(1)
Current Loop Specifications for 1746-NI8
Attribute Value
Current input, max ±30 mA
Input impedance 250 Ω
Input resolution 1 μA
Display resolution 1 μA
Overall module accuracy
0…60 °C (32…140 °F)
0…20 mA, 4…20 mA, ±20 mA: ±0.05%
0…1 mA: ±0.5%
Overall module accuracy drift ±12 ppm/°C
Gain error @ 25 °C (77 °F) ±0.025%, max
Gain error, 0…60 °C (32…140 °F) ±0.05%, max
Gain error drift ±12 ppm/°C
Overvoltage capability 7.5V AC RMS, max
Voltage Input Specifications for 1746-NI8
Attribute Value
Voltage input, max ±30V between any two signal terminals
Input impedance 1M Ω
Input resolution 1 mV
Display resolution 1 mV
Overall module accuracy
0…60 °C (32…140 °F)
±0.1%
Overall module accuracy drift ±17 ppm/°C
Gain Error @ 25 °C (77 °F), max ±0.05%
Gain Error, 0…60 °C (32…140 °F), max ±0.1%
Gain error drift, max ±17 ppm/°C