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

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