Siemens SIMATIC S5 Digital Input Module

Description

The 6ES5 430-7LA12 is a digital input module from the Siemens SIMATIC S5 series. It is designed to read 32 digital input signals at a 24V DC level. This module is a vital component for maintaining and repairing legacy automation systems based on the S5-115U, S5-135U, and S5-155U platforms, as well as ET 100U and ET 200U distributed systems. Its robust design ensures reliable performance in demanding industrial environments.

Specifications

• Manufacturer: Siemens
• Product Series: SIMATIC S5
• Model Number: 6ES5 430-7LA12
• Module Type: Digital Input
• Number of Inputs: 32
• Input Voltage: 24V DC
• Compatibility: S5-115U/135U/155U, ET 100U, ET 200U
• Connection: Requires 40-pin front connector

Label Info

• Part Number: 1P 6ES5 430-7LA12
• Serial Prefix: S C-J1G19942
• E-Stand: 12

Application

This module is used to interface sensors, switches, push buttons, and other digital field devices with a Siemens S5 PLC. It is commonly found in manufacturing, process control, and material handling applications that have not yet been upgraded to modern systems.

Country of Origin

Made in Germany.

CO2 Impact

By purchasing this pre-owned module, you help avoid the CO2 emissions associated with manufacturing a new one, contributing to a more sustainable industrial sector. Re-using this item saves an estimated 20.0 kg of CO2.

Availability

This is an obsolete item, available as a refurbished spare part. Stock is limited. Order now from PLC2Day for expert support and fast delivery.

FAQ

Question?
What PLC systems is the 6ES5 430-7LA12 compatible with?

This module is designed for use with Siemens SIMATIC S5-115U, S5-135U, and S5-155U central processing units, as well as the ET 100U and ET 200U distributed I/O systems.

Question?
Does this module require a specific front connector?

Yes, it requires a 40-pin front connector with screw terminals, such as the Siemens part number 6ES5 498-1AA11, to connect the field wiring.

Question?
Is this module floating or non-floating (common ground)?

This is a non-floating module, which means all 32 inputs share a common ground reference (M) for the 24V DC supply.

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Last Update: Friday, March 13, 2026