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Siemens SIPLUS S7-1200 SM 1221 8DI Digital Input Module

Siemens SIPLUS S7-1200 8DI Digital Input Module

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ManufacturerSiemens

Part number6AG1221-1BF32-2XB0

Type Digital Input Module

Manufacturer Siemens

Series SIPLUS S7-1200

Model SM 1221

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8 Digital Inputs (24V DC) Conformal Coating Extended Temperature Range (-40°C to +70°C) SIPLUS Extended Environmental Protection Based on S7-1200 Platform Sink/Source Input Capability

Product description

The Siemens 6AG1221-1BF32-2XB0 is a SIPLUS S7-1200 Signal Module (SM) 1221 featuring 8 digital inputs (8DI). Based on the standard 6ES7221-1BF32-0XB0, this module is enhanced with conformal coating for protection in harsh environments, operating in temperatures from -40°C to +70°C, with a startup temperature of -25°C. It supports 24V DC sink/source inputs.

This module is designed for the S7-1200 PLC series, providing robust digital input capabilities for demanding industrial applications. Its extended temperature range and conformal coating make it ideal for use in sectors such as oil and gas, chemical processing, mining, and outdoor installations where environmental factors can impact performance.

Stanlo Automation, a veteran-owned business, offers a wide selection of industrial automation parts, including specialized Siemens components like the 6AG1221-1BF32-2XB0. We understand the critical need for reliable hardware in challenging conditions. Source your SIPLUS modules from Stanlo for quality, value, and dependable service.

Technical specifications

Type	Digital Input Module
Manufacturer	Siemens
Series	SIPLUS S7-1200
Model	SM 1221
Inputs	8 DI
Voltage	24V DC
Temperature Range	-40 to +70 °C
Features	Conformal Coating

Common applications

Harsh Industrial Environments

Oil & Gas Automation

Chemical Plant Control

Mining Operations

Outdoor Control Cabinets

Extreme Temperature Applications

Compatible systems

Siemens S7-1200 PLC CPU SIMATIC NET communication modules Industrial Ethernet switches

Also known as

Siemens SIPLUS SM 1221 8DI Siemens S7-1200 Digital Input 6AG1221-1BF32-2XB0 Module

Replaces / compatible with

This SIPLUS module is an enhanced version of the standard Siemens 6ES7221-1BF32-0XB0 digital input module, offering superior environmental protection for S7-1200 systems.

Technical note

Expert tip

The conformal coating on this module provides protection against condensation and corrosive atmospheres, but it does not replace the need for proper enclosure sealing.

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Frequently asked questions

What makes the Siemens 6AG1221-1BF32-2XB0 suitable for harsh environments?

The Siemens 6AG1221-1BF32-2XB0 features conformal coating and an extended operating temperature range of -40°C to +70°C. This SIPLUS design provides enhanced protection against moisture, dust, and extreme temperatures, making it ideal for challenging industrial settings.