Home › Manufacturers › Siemens › 6ES7221-1BH30-0XB0

Siemens

Siemens SIMATIC S7-1200 Digital Input Module SM 1221 (16DI)

Siemens SIMATIC S7-1200 16-channel Digital Input Module (24V DC).

● In Stock 12-Mo Warranty Same-Day Dispatch Ships Worldwide 🎖 Veteran-Owned

In Stock — Ready to Ship

ManufacturerSiemens

Part number6ES7221-1BH30-0XB0

Type Digital Input Module

Series SIMATIC S7-1200

Model SM 1221

Number of Inputs 16 DI

Get a price for 6ES7221-1BH30-0XB0

Response within 1 business hour

🛡

12-month warranty

All units tested

⚡

Same-day dispatch

Order by 2pm CST

🌐

Worldwide delivery

US, EU, Asia, Middle East

🎖

Veteran-owned

CAGE: 9NK75

16 Digital Inputs 24V DC Operation Sink/Source Selectable S7-1200 Compatibility High Input Density

Product description

The Siemens SIMATIC S7-1200 Digital Input Module SM 1221 (6ES7221-1BH30-0XB0) provides 16 digital inputs for the S7-1200 programmable logic controller system. It supports 24V DC signals and can be configured for either sink or source operation, offering flexibility in wiring.

This module is essential for acquiring binary control signals from the field, such as those from pushbuttons, limit switches, and sensors. Its high density of inputs and compatibility with the S7-1200 platform make it suitable for a wide range of automation tasks in various industries.

Stanlo Automation, your veteran-owned source for surplus industrial parts, offers the Siemens 6ES7221-1BH30-0XB0. Source reliable automation components to ensure the efficiency and longevity of your systems.

Technical specifications

Type	Digital Input Module
Series	SIMATIC S7-1200
Model	SM 1221
Number of Inputs	16 DI
Voltage	24V DC
Configuration	Sink/Source

Common applications

Machine Control

Process Automation

Building Automation

Conveyor Systems

Packaging Machinery

Compatible systems

SIMATIC S7-1200 CPUs TIA Portal programming software

Also known as

SIMATIC S7-1200 DI module Siemens SM 1221 16DI 24V DC input module

Replaces / compatible with

This module is a standard component for the SIMATIC S7-1200 PLC series. Ensure your CPU firmware supports this input module.

Technical note

Expert tip

The sink/source configurable inputs provide flexibility, allowing you to adapt the module to various sensor types and wiring conventions.

What happens next?

Email confirmation

Immediate receipt acknowledgment sent to you

Account manager assigned

Confirms your part's spec and condition

Your quote delivered

Tailored to your specific requirements

Frequently asked questions

How many digital inputs does the Siemens SM 1221 module (6ES7221-1BH30-0XB0) offer?

The Siemens SIMATIC S7-1200 Digital Input Module SM 1221 (6ES7221-1BH30-0XB0) offers 16 digital inputs, operating at 24V DC and supporting both sink and source configurations.