Technical Specifications Battery Chemistry: Lithium‑based smart battery unit Backup Function: Volatile memory data backup for RX3i CPU modules Battery Detection Function: Built‑in battery voltage monitoring circuit Low‑Battery Alarm Threshold: Pre‑defined voltage trigger point for warning output Operating Power: Powered by RX3i rack backplane Operating Temperature: ‑40 ℃ to +70 ℃ Storage Temperature: ‑50 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Single‑slot accessory module for RX3i rack Certifications: CE, UL industrial component compliance
Functional Features Provides reliable memory backup upon main power loss of RX3i controller. Real‑time smart monitoring for battery residual capacity and health status. Generates low‑battery alarm signal to host system for maintenance reminder. Supports hot‑swap replacement without system shutdown. Front‑panel status LED indicates battery working condition. Communicates battery diagnostic data to CPU via backplane bus. Over‑discharge protection circuit extends battery service life.
Application Scenarios Memory data backup for RX3i PLC CPU in manufacturing automation. Power‑failure data retention for chemical and process control sites. Continuous control system data protection for power industry equipment. Industrial sites requiring uninterrupted volatile memory preservation.
Structural Characteristics Single‑slot plug‑in mechanical structure matching RX3i rack specification. Front‑panel LED indicator for battery status and low‑battery alert. Backplane golden‑finger interface for power supply and diagnostic data transmission.
Working Principle The module obtains working power from RX3i rack backplane bus. When system main power supply drops or loses power, internal battery circuit automatically outputs backup voltage to sustain volatile memory data. On‑board detection circuit continuously samples battery voltage. When voltage drops below preset threshold, low‑battery warning signal is transmitted to CPU through backplane bus.
Installation Requirements Install the module to designated slot of RX3i standard rack. Strictly follow system grounding requirements for rack protective earthing. No field heavy‑current wiring connected directly to this module.
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