6ES7291-8BA20-0XA0
Siemens SIMATIC S7-200, battery module BC 291 for long-term buffering of data,pluggable into memory module receptacle of S7-22X CPU duty to supply information according to article 33, REACH regulation: the product contains the following substance from the candidate list in concentrations exceeding 0.1% by weight: 1,2-Dimethoxyethane, ethylene glycol dimethyl ether (EGDME) (CAS 110-71-4; EC No. 203-794-9)
Overview
Siemens SIMATIC S7-200 Battery Module BC 291 is a critical component designed to provide long-term buffering of data in the S7-200 PLC systems, specifically for the S7-22X CPU series. This module is essential for maintaining the integrity of system data, such as clock settings and memory contents, during power outages or when the PLC is powered down. By ensuring that this data is preserved, the BC 291 module facilitates a seamless restart of the PLC without the need for reconfiguration, thereby enhancing system reliability and reducing downtime.
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