Siemens 6ES5456-7LB11 | SIMATIC S5 Digital Output Module

Technical Overview of the Output Module

The Siemens 6ES5456-7LB11 provides 16 digital output channels for the SIMATIC S5 PLC family. This module drives actuators, contactors, and indicator lamps directly from the controller. It converts logic signals from the CPU into field-level switching actions. The module supports 24V DC outputs with short-circuit protection.

Key Technical Specifications

This section lists the precise parameters for the Siemens 6ES5456-7LB11 output module. Refer to these figures when designing your control system.

Parameter	Specification
Part Number	6ES5456-7LB11
Type	Digital Output Module
Product Family	SIMATIC S5
Number of Outputs	16 Digital Outputs
Output Voltage	24V DC
Output Current	0.5 A per channel (resistive load)
Short-circuit Protection	Electronic, with status indication
Isolation	Galvanic isolation between outputs and backplane
Dimensions (W x H x D)	Approx. 250 x 25 x 180 mm
Weight	Approx. 1.0 kg
Compatibility	SIMATIC S5-115U, 135U, and 155U systems

Application and System Integration

This output module connects directly to the S5 backplane bus. It drives solenoids, motor starters, and signal lamps in industrial applications. The Siemens 6ES5456-7LB11 transmits output commands from the CPU to the field devices. Each channel includes an LED indicator for visual status confirmation. Consequently, operators can quickly identify output states.

Reliability and Performance Characteristics

The electronic short-circuit protection prevents damage from wiring faults. This feature ensures stable operation even in demanding conditions. The module’s robust construction handles vibration and temperature fluctuations. Engineers trust the Siemens 6ES5456-7LB11 for its proven field reliability.