Rockwell Automation 1794-IE4XOE2,1794-IE8,1794-OE4,D17946.5.2 FLEX I/O ANALOG MODULE - Manual (Page 57)

Appendix
A
Publication 1794Ć6.5.2 - May 1996
Specifications
Specifications - 1794ĆIE8/B Analog Input Module
Number of Inputs 8 singleĆended, nonĆisolated
Module Location Cat. No. 1794ĆTB2, ĆTB3 Terminal Base Unit
Resolution
Voltage
Current
12 bits Ć unipolar; 11 bits plus sign Ć bipolar
2.56mV/cnt unipolar; 5.13mV/cnt bipolar
5.13 µ A/cnt
Data Format left justified 16Ćbit 2's complement
Conversion Type Successive approximation
Conversion Rate 256 µ s all channels
Input Current Terminal 4Ć20mA (user configurable)
0Ć20mA (user configurable)
Input Voltage Terminal ± 10V (user configurable)
0Ć10V (user configurable)
Normal Mode Rejection Ratio
Voltage Terminal
Current Terminal
-3db @ 17Hz; -20db/decade
-10.0dB @ 50Hz, -11.4dB @ 60Hz
-3db @ 9Hz; -20db/decade
-15.3dB @ 50Hz, -16.8dB @ 60Hz
Step Response to 63%
Voltage Terminal
Current Terminal
9.4ms
18.2ms
Input Impedance
Voltage Terminal
Current Terminal
100k ohms
238 ohms
Input Resistance
Voltage Terminal
Current Terminal
200k ohms
238 ohms
Absolute Accuracy 1
Voltage Terminal
Current Terminal
0.29% Full Scale @ 25 o C
0.29% Full Scale @ 25 o C
Accuracy Drift with Temperature
Voltage Terminal
Current Terminal
0.00428% Full Scale/ o C
0.00407% Full Scale/ o C
Calibration None Required
Maximum Overload 30V continuous or 32mA continuous,
one channel at a time
Isolation Voltage Tested at 850V dc for 1s between user and system
No isolation between individual channels
Indicators 1 green power indicator
Flexbus Current 20mA
Power Dissipation 3W maximum @ 31.2V dc
Thermal Dissipation Maximum 10.2 BTU/hr @ 31.2V dc
Keyswitch Position 3
Specifications continued on next page.