Siemens 6ES5460-4UA12 Analog Input Module

High-Density Analog Signal Acquisition for S5 Systems

The Siemens 6ES5460-4UA12 analog input module provides high-density signal acquisition for SIMATIC S5-135U and S5-155U PLC systems. This module converts analog signals from field sensors into digital values for the CPU. Process control applications depend on this module for accurate and reliable measurement data.

Input Specifications and Electrical Characteristics

This analog input module features 8 isolated input channels with floating inputs for noise immunity. The inputs accept voltage signals from -10 V to +10 V or 0 V to 10 V, and current signals of 0/4 mA to 20 mA. The module includes comprehensive isolation of at least 500 V DC between the field signals and internal logic. Furthermore, the module provides high-precision signal conversion with fast response times for dynamic processes.

Parameter	Specification
Brand	Siemens
Model	6ES5460-4UA12
Number of Inputs	8 (isolated, floating)
Input Ranges (selectable)	0–10 V, -10–+10 V, 0–20 mA, 4–20 mA
Isolation Voltage	500 V DC
Power Supply	24 V DC
Dimensions (W x H x D)	40 mm x 145 mm x 130 mm
Weight	Approx. 0.52 kg
Compatible CPUs	S5-135U, S5-155U, S5-155H
Operating Temperature	0°C to 60°C

Signal Conditioning and Configuration

Users can configure each input channel independently for voltage or current operation via the programming software. The module performs high-resolution analog-to-digital conversion for accurate process signal representation. Additionally, the module provides diagnostic information, including overrange detection and open-circuit monitoring. The floating input design offers excellent noise immunity for reliable measurements in harsh industrial environments.

Physical Design and Installation

This analog input module fits standard S5-135U and S5-155U rack slots with a width of 40 mm. The unit weighs approximately 0.52 kilograms, allowing straightforward installation and removal. Screw-type terminals on the front connector provide secure connections for field wiring. LED indicators display power and channel status for quick visual diagnostics.

System Integration and Addressing

You can install this analog input module in any slot of the S5-135U or S5-155U central or expansion rack. The module automatically maps its 8 input channels to consecutive addresses in the CPU’s I/O table. Users can read converted values directly from the assigned memory addresses. Moreover, the module supports both local and remote rack configurations for flexible system design.

Application Guidelines and Environmental Ratings

This input module operates reliably from 0°C to 60°C with an IP20 protection rating. For optimal performance, use shielded cables for all analog signal connections. Always verify signal ranges before connecting field devices to the module. The module meets CE and UL standards for industrial control equipment.