Siemens 6Es5482-7Lf31 Digital Input Output Module

Siemens 6ES5482-7LF31 is a floating digital input/output module intended for use with the SIMATIC S5-115F PLC. The module provides eight digital inputs and eight digital outputs, all operating at 24 V DC, with galvanic isolation between the I/O circuits and the controller backplane. This 482-series module is designed for compact remote I/O in legacy Siemens automation architectures, enabling straightforward expansion of a running S5 system without replacing the PLC. On the input side, the eight DI channels monitor sense lines, limit switches, and other 24 V DC signals, while the eight DO channels switch 24 V DC loads such as relays, actuators, and indicator lamps. The combined DO bank supports a total current of up to 2.5 A, making it suitable for modest load applications typical of process and manufacturing environments. The 6ES5482-7LF31 plugs into the S5-115F ecosystem via the standard backplane interface, conforming to Siemens' 482 digital I/O module specification and offering a proven, legacy-extension path for teams maintaining older equipment.