Input/Output Modules 55
Chapter 3 System Description
Model 3351 Analog Input Module Specifications
Feature Specification
Points 32, commoned
Nominal input current 4–20 mA DC
Operational current range 2–22 mA DC
Absolute maximum field voltage 33 V DC
Absolute maximum reverse field voltage – 0.6 V DC
Absolute maximum input current 50 mA DC
Input bandwidth (3dB) 16 Hz
Source impedance 180 Ω
Input impedance (with baseplate) 250 Ω
I to V resistor 100 Ω, ±0.01%
Resolution 12 bits
Absolute error 0.15% of full scale (20 mA)
Diagnostic Force-to-value diagnostic (FVD)
Scan time <1 ms for all 32 points
Functional-to-protective-earth isolation 500 V DC, minimum
Functional-to-functional-earth (logic)
isolation
800 V DC, minimum
To Next Page
Loading...