Rockwell Automation 61C542 Voltage Input module - Manual (Page 52)

AĆ2
Appendix A
(Continued)
Input Circuit
D Input Voltage Range: -10V to +10V
D Resolution: 1.46mV per count (any configuration)
(-10V to +10V = -4095 to +4095 unscaled)
(0V to +10V = 0 to +4095 unscaled)
D Accuracy: 0.2% across the operating temperature range
D Input Filter: first order, lowpass, 7 Hz breakpoint
D Input Impedance: 10M ohms typical at 0 Hz
D Out of Range Threshold Voltages:
Below -10.5V or Above +10.5V (bipolar)
Below -0.5V or Above +10.5V (unipolar)
Noise Rejection
D Line Frequency Filter (Software Selectable): 60 Hz (default) or 50 Hz
D Averaging Filter (Software Selectable): 1 (default) to 60 samples per
average
D Common Mode Rejection: -60dB min (averaging filter =
1 and line filter enabled)
D Normal Mode Rejection: -40dB min (averaging filter =
1 and line filter enabled)
Input Channel Update Times (All times are in milliĆseconds)
(Differential Input Mode)
Number of
Configured
Channels
Unscaled
Data
Scaled
Data
Square
Root of
Scaled
Data
Running
Average of
Square
Root of
Scaled Data
60 Hz. Line
One 18.5 18.6 18.8 18.9
60 Hz. Line
Freq. Filter
E bl d
Each Added 17.7 17.8 18 18.1 Freq. Filter
Enabled
Eight 142 143 144 145
Line Freq.
One 2.2 2.3 2.5 2.6
Line Freq.
Filters
Di bl d
Each Added 1.2 1.3 1.5 1.6 Filters
Disabled
Eight 10.6 11.4 13 13.8
50 Hz. Line
One 22 22.1 22.3 22.4
50 Hz. Line
Freq. Filter
E bl d
Each Added 21 21.1 21.3 21.4 Freq. Filter
Enabled
Eight 168 169 171 171