Siemens 7KE4490-2BA S5 Analog Input Module

Precision Signal Acquisition for S5 Automation

The Siemens 7KE4490-2BA S5 module specializes in high-accuracy analog signal acquisition for the S5-115U and S5-135U systems. This unit reliably processes both thermocouple and standard current signals from field sensors. The module connects directly to the S5 backplane bus, ensuring stable data exchange.

Technical Specifications and Input Ranges

This analog module offers 8 isolated input channels for versatile field device connectivity. Users can configure each channel for either TC (thermocouple) or 4-20 mA current input. The module features a resolution of 14 bits, providing highly precise measurement data. Furthermore, the integrated cold junction compensation ensures accurate thermocouple readings.

Connection and Physical Design

The Siemens 7KE4490-2BA adopts a compact, single-width housing design for rack installations. A 20-pin front connector provides access to all analog signal terminals. The module features screw-type terminals for securing wires from 0.5 mm² to 2.5 mm². Additionally, the front panel includes LED indicators for channel status and fault diagnostics.

System Integration and Compatibility

You can install this module in any standard slot of an S5-115U or S5-135U rack. The CPU automatically maps the 8 channels to the module’s assigned address area. Users can configure the signal type and measurement range via the STEP 5 software parameters. This module operates reliably within a temperature range of 0°C to 60°C.