Rockwell Automation 1746-XXXX SLC 500 4-Channel Analog I/O Modules User Manual - Manual (Page 95)

Publication 1746-UM005B-EN-P - June 2004
Specifications A-5
Current Output
Specifications for NIO4I
and NO4I
Specification 1746-NI04I, -N04I
Converter Resolution 14 bit
Location of LSB in I/O image word 0000 0000 0000 01XX
Non–linearity 0.05%
Conversion Method R-2R Ladder
Step Response 2.5 ms (at 95%)
Load Range 0 to 500 Ohms
Maximum Load Reactance 100 µH
Current Output Coding (0 to +21 mA - 1 LSB) 0 to +32764
Output Range (Normal) 0 to +20 mA
Overrange Capability 5% (0 to +21 mA - 1 LSB)
Resolution 2.56348 µA per LSB
Full Scale 21 mA
Overall Accuracy at +25° C (77° F) (max.) ±0.298% of full scale
Overall Accuracy at 0° to +60° C
(32° to 140° F) (max.)
±0.541% of full scale
Overall Accuracy Drift (max.) ±70 ppm/° C of full scale
Gain Error at +25° C (77° F) (max.) ±0.298%
Gain Error at 0° to +60° C
(32° to 140° F) (max.)
±0.516%
Gain Error Drift (max.) ±62 ppm/° C
Offset Error at +25° C (77° F) (max.) ±10 LSB
Offset Error at 0° to +60° C
(32° to 140° F) (max.)
±12 LSB
Offset Error Drift (max.) ±0.06 LSB/° C