Allen Bradley Rockwell ICS Triplex Regent T3420A Analog Input Module

Manufacturer: ICS Triplex Product No.: T3420A The ICS Triplex T3420A Analog Input Modules are designed to provide data input for up to 16 field analog signals per module. Two variants are available: one offering high noise immunity with 60 Hz rejection (T3420A), and the other providing fast response with low noise immunity (T3420AF). Key Features: Supports sixteen single-ended or eight differential voltage inputs, with the option to interface current inputs using external 250 ohm resistors. Fault-tolerant operation when connected in parallel with redundant modules of the same type. Hot replaceable for convenient maintenance. Jumper-selectable input ranges. Offers 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). Available in 60 Hz rejection (T3420A) and fast response (T3420AF) versions. Provides 2500 volt isolation between analog and digital logic circuits. Front panel indicators for module active and fault status. TÜV certified for safety, Risk Class 5. Operation: The modules feature triplicated I/O Safetybus interfaces, ensuring operational integrity even in the event of module failure. Extensive fault detection mechanisms prevent erroneous data transmission to controllers. Testing and Diagnostics: Periodic testing of voter circuits ensures reliability. Loopback logic tests verify I/O bus interface functionality. Front panel LEDs indicate module health status. Application: Offers various input voltage and current ranges, selected via jumpers. Detects out-of-range signals and provides absolute signal ranges. Sampling speed depends on the mode of operation, with channels sampled in numerical order. Single-Ended References: Ground reference for single-ended signals selected from AREF1 and AREF2 terminals. Isolated from external I/O analog ground AGND for accurate measurements.