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Product Overview

The Siemens 6ES7221-1BH22-0XA0 EM221 Digital Input Module is designed to expand the digital input capacity of compatible Siemens SIMATIC S7-200 PLC systems. It provides 16 digital inputs for receiving signals from industrial sensors, push buttons, limit switches, and other field devices.

This module operates with 24V DC input signals and supports both sinking and sourcing input configurations. Its optocoupler isolation and compact design make it suitable for industrial machine control, automation panels, and maintenance of existing S7-200 PLC installations.

Technical Specifications

·         Brand: Siemens

·         Product Series: SIMATIC S7-200

·         Module Type: EM221 Digital Input Expansion Module

·         Model Number: 6ES7221-1BH22-0XA0

·         Number of Digital Inputs: 16 channels

·         Rated Input Voltage: 24V DC

·         Input Signal 0 (OFF): 0–5V DC

·         Input Signal 1 (ON): 15–30V DC

·         Typical Input Current at Signal 1: 4mA

·         Input Type: Sinking/Sourcing

·         Input Characteristic: IEC 61131 Type 1

·         Maximum Input Delay: 4.5ms

·         Maximum Cable Length: 500m shielded / 300m unshielded, subject to installation conditions

·         Backplane Bus Current: Maximum 70mA at 5V DC

·         Typical Power Loss: 3W

·         Electrical Isolation: Optocoupler isolation, grouped in sets of 4 inputs

·         Dimensions (W × H × D): 71.2 × 80 × 62mm

·         Approximate Weight: 160g

·         PLC Compatibility: Siemens SIMATIC S7-200 S7-22X CPU family

·         Product Lifecycle: Discontinued; listed by Siemens as a spare part

Key Features

·         Provides 16 digital input channels.

·         Supports standard 24V DC industrial signals.

·         Supports sinking and sourcing input configurations.

·         Optocoupler isolation between input groups.

·         Compatible with supported two-wire sensors.

·         Compact design for PLC expansion and control panels.

·         Suitable for maintenance and replacement of existing S7-200 systems.

Applications

·         Industrial machine automation

·         PLC control panels

·         Proximity sensor and limit-switch interfacing

·         Push-button and selector-switch monitoring

·         Conveyor and material-handling systems

·         Packaging and production machinery

·         Replacement and maintenance of Siemens S7-200 PLC systems

Buy Siemens 6ES7221-1BH22-0XA0 from Automation Seba

Looking for a Siemens EM221 Digital Input Module in Bangladesh? Creative Industrial Automation (CIA) – Automation Seba, Bogura, provides industrial automation products and technical support for PLC, HMI, VFD, control panels, PLC programming, troubleshooting, commissioning, repair, and maintenance.

Contact us to confirm the current price, stock availability, product condition, warranty, and compatibility with your PLC system.

Website: https://automationseba.com

Business: Creative Industrial Automation (CIA) – Automation Seba, Bogura, Bangladesh