Siemens 6ES7455-0VS00-0AE0 | S7-400 FM 455 C 16 AI/16 AO

Product Overview

The Siemens 6ES7455-0VS00-0AE0 is an FM 455 C control module for SIMATIC S7-400 systems, providing 16 continuous control channels. It combines 16 analog inputs, 16 digital inputs, and 16 analog outputs in a single module. Weighing approximately 1,400 g, this controller supports thermocouples, Pt100 resistance thermometers, and standard voltage/current signals for comprehensive process control.

Technical Configuration

This module operates from 24 V DC load voltage with a permissible range of 20.4 to 28.8 V. It draws a maximum of 440 mA (typical 370 mA) from load voltage without load. The 16 analog inputs accept thermocouples or 2-wire connections, while 8 channels support Pt100 or 4-wire connections. Integrated control technology provides 16 closed-loop controllers. Potential separation between channels and backplane bus uses optocouplers, tested at 500 V DC isolation.

Technical Specifications

Installation Guide

Install the FM 455 C module in a compatible S7-400 rack slot and secure both 48-pin front connectors. Connect 24 V DC load voltage within the 20.4-28.8 V range. Use shielded cable for analog signals with maximum 200 m length (50 m for 80 mV and thermocouple inputs). Verify voltage output loads meet minimum 1 kΩ and current output loads remain below 500 Ω. Internal or external Pt100 temperature compensation is parameterizable for thermocouple measurements.

Engineering Advantages

This module integrates 16 closed-loop controllers with 16 AI, 16 DI, and 16 AO in a single unit, reducing rack space and wiring. Support for thermocouples, Pt100 RTDs, and standard voltage/current signals provides exceptional measurement flexibility. Parameterizable 12-bit or 14-bit resolution suits both standard and high-precision applications. Optocoupler isolation between channels and backplane bus protects the system from field transients. Short-circuit-protected voltage outputs with 25 mA limit safeguard connected actuators.

Technical FAQs

Q1: How many control loops does the 6ES7455-0VS00-0AE0 support?
A1: This module integrates 16 closed-loop controllers with 16 analog inputs, 16 digital inputs, and 16 analog outputs.

Q2: What temperature sensor types does this module accept?
A2: It accepts thermocouple types B, J, K, R, and S, plus Pt100 resistance thermometers with parameterizable internal or external compensation.

Q3: What are the analog output load requirements?
A3: Voltage outputs require minimum 1 kΩ load (max 1 µF capacitive), while current outputs accept maximum 500 Ω load (max 1 mH inductive).