Product Overview

The SIMATIC S7-200 Battery Module BC 291 is a specialized backup power solution designed for long-term data buffering in SIMATIC S7-200 programmable logic controllers. This compact, pluggable module ensures critical program and data retention during power outages, providing essential backup power for S7-22X CPU series controllers.

Key Features

• Long-Term Data Backup: Provides extended backup power for critical data retention
• Plug-and-Play Design: Easily pluggable into memory module receptacle of S7-22X CPUs
• Compact Form Factor: Ultra-compact design for space-efficient installation
• Lithium Technology: Utilizes reliable lithium battery technology for stable power delivery
• Extended Backup Time: Provides up to 3 months of data backup capability
• CPU Compatible: Specifically designed for S7-22X CPU series integration
• Maintenance-Free: No maintenance required during operational life

Technical Specifications

• Battery Type: Lithium
• Voltage: 3V
• Capacity: 30 mAh (300 mAh original specification)
• Backup Duration: Up to 3 months typical
• Net Weight: 0.013 lb (6g)
• Dimensions: 16.5 × 17.5 × 9.9 mm (L × W × H)
• Package Dimensions: 1.969 × 3.268 × 0.669 inches
• Operating Temperature: As per S7-200 system specifications
• Installation: Pluggable into memory module slot

Compatibility

This battery module is specifically designed for:

• SIMATIC S7-22X CPU Series: All S7-22X CPU models
• S7-200 Programming: Compatible with Step 7 Micro-Win programming software
• Memory Module Receptacle: Plugs directly into dedicated memory module slot
• BC 291 Designation: Official Siemens BC 291 battery module specification

Applications

• Data Retention: Maintains program and data integrity during power failures
• Critical System Backup: Essential for systems requiring continuous operation
• Industrial Automation: Manufacturing and process control applications
• Remote Installations: Unmanned or remote control systems
• Emergency Backup: Provides backup power for critical control functions

Installation & Operation

• Simple Installation: Plug directly into memory module receptacle of S7-22X CPU
• No Configuration Required: Automatic operation once installed
• Status Monitoring: System monitors battery status through CPU diagnostics
• Replacement Ready: Easy replacement when battery reaches end of life
• Hot-Swappable: Can be replaced without system shutdown (refer to manual)

Quality & Compliance

• Country of Origin: China
• EAN: 4025515161431
• UPC: 662643187946
• RoHS Compliant: Since 31.03.2008
• WEEE Compliant: Take-back obligation applies
• Export Control: ECCN: N / AL: N

Important Notices

Product Lifecycle Status: This product is cancelled (PM410) effective from 04/01/2021. This is a spare part for existing installations only. Plan for alternative solutions for new projects.

REACH Compliance: This product contains lead monoxide (lead oxide) in concentrations above 0.1% w/w. When used as intended, these substances pose no risk during normal operation and disposal.

Spare Part Status: This is designated as a spare part for existing S7-200 installations and maintenance purposes.

Replacement & Maintenance

• Battery Life: Typical service life varies based on ambient temperature and usage
• Replacement Indicator: CPU diagnostics will indicate when replacement is needed
• Compatible Alternatives: Third-party compatible batteries available from various suppliers
• Disposal: Must be disposed of according to local battery disposal regulations

Package Contents

• 1 × SIMATIC S7-200 Battery Module BC 291
• Technical documentation

Download existing graphical data for this product:

• Product Information Page
• Product Support Portal
• SIMATIC S7-200 Documentation
• Technical Datasheet