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Rockwell Automation T7420A_AF ICS Regent+Plus Analog Input Modules 60Hz Rejection and Fast Response User Manual

Ics regent+plus, Analog input modules, 60 hz rejection and fast response

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ICS Regent+Plus

®

PD-7023

Industrial Control Services

1

Analog Input Modules

60 Hz Rejection and Fast Response

(T7420A and T7420AF)

Issue 1, March, 06

Analog input modules provide data input for a maximum of
16 field analog signals per module. Two types of modules are
available: one for high noise immunity (60 Hz rejection) and
one with low noise immunity (fast response).

Features

·

Sixteen single-ended or eight differential

voltage inputs.

Interface to current inputs using external 250 ohm resistors for
current to voltage conversion (resistors are provided as part of
the I/O Termination Assembly - see PD-7901).

·

Fault tolerant operation when connected in parallel with

redundant modules of the same type.

·

Hot replaceable.

·

Jumper-selectable input ranges.

·

12-bit analog to digital resolution (1 part in 4096).

·

Sample rate of all channels in 1.8 msec (differential) or 3.6

msec (single-ended).

·

60 Hz rejection (T7420A) and fast response (T7420AF)

versions available.

·

2500 volt isolation between analog and digital logic circuits.

·

Individual front panel indicators on each module show module

active and fault status.

·

TÜV certified for safety, Risk Class 5.

Each module’s triplicated I/O Safetybus interface ensures that
no failure in the module can affect the operation of the Regent
system or other I/O modules in the system. Extensive fault
detection and annunciation of critical redundant circuits help