Product details
Specifications
Recommand
Service & Policy

01 · PRODUCT DETAILS

Official product identity

SIEMENS INDUSTRIAL AUTOMATION

Siemens 6ES7221-1BH22-0XA8 Digital Input Module

A compact expansion module for acquiring discrete field signals in compatible S7-22X controller stations.

PURCHASE & PRODUCT PROFILE

SERIES

SIMATIC S7-200 CN

CONDITION

New Original

WARRANTY

One year

AVAILABILITY

In stock

Related models on site

Siemens Products 6ES7340-1AH02-0AE0 6ES7315-2EG10-0AB0

02 · SPECIFICATIONS

Official Siemens product data

Discrete input expansion for installed control systems

This module extends field-input capacity for a compatible controller station, allowing machine sensors and switching devices to be integrated while preserving the CPU’s onboard input points for existing functions.

Official technical data

PRODUCT TYPE

EM 221 digital input module

DIGITAL INPUTS

INPUT VOLTAGE

24 V DC

INPUT CURRENT

4 mA typical at signal "1"

POWER LOSS

3 W typical

SIGNAL BEHAVIOR

Sinking / sourcing

Certification & Standards

Approval scope

CE approval for this S7-200 CN product

RoHS status

Compliant since 31 March 2008

WEEE

Take-back obligation: Yes

Compatibility & Interoperability

Controller family

SIMATIC S7-200 CN

Compatible CPUs

Only for S7-22X CPU

Field signals

24 V DC sinking or sourcing devices

Field-input expansion

Preserves onboard I/O capacity

Clear replacement identification

03 · RECOMMAND

Brand strengths and application fields

Brand characteristics

Application fields

Structured automation engineering with coordinated hardware families and documented product data.

Discrete field-state acquisition for compact industrial controller installations.

Modular designCoordinated controllers and expansion modules

Machine controlLimit switches, pushbuttons and status contacts

Official dataClear order numbers and technical records

Production cellsSensor monitoring and sequence feedback

Lifecycle supportSupport for installed automation systems

System serviceS7-22X expansion and replacement work

Recommended products

Siemens

6ES7211-1AE40-0XB0

6ES7212-1AE40-0XB0

6ES7214-1AG40-0XB0

6ES7215-1AG40-0XB0

6ES7217-1AG40-0XB0

6ES7221-1BF32-0XB0

6ES7221-1BH32-0XB0

6ES7222-1BF32-0XB0

6ES7222-1BH32-0XB0

6ES7223-1PH32-0XB0

6ES7231-4HD32-0XB0

6ES7231-5ND32-0XB0

6ES7232-4HB32-0XB0

6ES7234-4HE32-0XB0

6ES7241-1CH32-0XB0

6ES7277-0AA22-0XA0

6ES7290-6AA20-0XA0

6ES7291-8GE20-0XA0

6ES7954-8LC03-0AA0

6ES7954-8LE03-0AA0

Helmholz

700-972-0BA12

700-972-7BA12

700-751-1VK21

700-752-1AA23

700-859-1BB01

700-860-MPI01

700-600-1AA11

700-600-2AA11

700-600-3AA11

700-500-0AA01

700-400-1AA01

700-400-2AA01

700-300-1AA01

700-300-2AA01

700-751-8VK21

700-972-0BB12

700-972-7BB12

700-158-0AD02

700-153-8AA01

700-151-0AA23

04 · SERVICE & POLICY

Clear process, clear responsibility

Q	Quote Confirm the complete model, condition, requested quantity and delivery destination for a clear quotation.

D	Dispatch Prepare confirmed goods, complete delivery documentation and arrange shipment after order review.

◇

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SIMATIC S7-200 CN EM 221

S7-200 CN Input Module

Digital Input Module Datasheet

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