Allen-Bradley MicroLogix 1200 User Manual page 106

A-16 Specifications
(2) Open-circuit detection time is equal to channel update time.
Publication 1762-UM001D-EN-P - March 2004
Table A.22 Input Specifications 1762-IT4
Specification
Heat Dissipation
Response Speed per Channel
(1)
Rated Working Voltage
Normal Mode Rejection Ratio
Maximum Cable Impedance
Open-circuit Detection Time
Calibration
CJC Accuracy
Maximum Overload at Input
Terminals
Input Channel Configuration
(1) Rated working voltage is the maximum continuous voltage that can be applied at the input terminal, including
the input signal and the value that floats above ground potential (for example, 30V dc input signal and 20V dc
potential above ground).
(2) Open-circuit detection time is equal to the module scan time, which is based on the number of enabled
channels, the filter frequency of each channel, and whether cyclic calibration is enabled..
(3) Maximum current input is limited due to input impedance.
Value
1.5 Total Watts (The Watts per point, plus the
minimum Watts, with all points energized.)
Input filter and configuration dependent.
30V ac/30V dc
85 dB (minimum) at 50 Hz (with 10 Hz or 50 Hz filter)
85 dB (minimum) at 60 Hz (with 10 Hz or 60 Hz filter)
25 Ω (for specified accuracy)
(2)
7 ms to 1.515 seconds
The module performs autocalibration upon power-up
and whenever a channel is enabled. You can also
program the module to calibrate every five minutes.
±1.3°C (±2.34°F)
(3)
±35V dc continuous
via configuration software screen or the user program
(by writing a unique bit pattern into the module's
configuration file).