Siemens Simatic Module - 6Es5420-4Ua12

Description:

The Siemens SIMATIC 6ES5420-4UA12 is a digital input module for the SIMATIC S5 PLC platform designed to interface 32 discrete 24 VDC input signals with industrial automation systems. Commonly installed in manufacturing equipment, process control systems, and machine automation applications where reliable digital signal acquisition is required. Maintenance technicians, OEMs, and system integrators use this module for system expansion, replacement of failed I/O modules, and upgrades of legacy S5 control systems. The module is a compact U-version and is intended for use with S5-135U and S5-155U PLCs.

Applications:

The Siemens SIMATIC 6ES5420-4UA12 digital input module is designed to receive and process discrete field signals from sensors, switches, pushbuttons, and other 24 VDC devices in industrial automation systems. It is commonly used in assembly lines, packaging equipment, conveyor systems, and process control installations where dependable digital input monitoring is required. The module can also be used in S5-115U systems with an adapter casing.

Technical Specifications:

• Manufacturer: Siemens
• Product Family: SIMATIC S5
• Manufacturer Part Number (MPN): 6ES5420-4UA12
• Product Type: Digital Input Module
• Module Type: DI 420
• Number of Inputs: 32
• Input Voltage: 24 VDC
• Input Type: Non-isolated (Non-floating)
• PLC Platform: SIMATIC S5
• Compatible Systems: S5-135U, S5-155U
• Compatible with S5-115U using adapter casing 6ES5491-0LB11
• Version: Compact U
• Connection Type: Front connector with screw or crimp terminals depending on accessory
• Mounting: Rack-mounted PLC module
• Application: Industrial automation and machine control
• Status: Spare part / Legacy module
• Weight: Approximately 0.45 kg (1 lb)
• Operating Temperature: 0°C to +60°C

Common Replacements:

• Siemens 6ES5420-4UA13
• Siemens 6ES5420-4UA11
• Siemens SIMATIC S7 Digital Input Modules (migration applications)