Technical Specifications User Memory:64MB program memory, 64MB data memory Logic Execution Speed:0.06μs per boolean instruction Built‑in Port:2×Ethernet ports, 1×RS232 serial port, redundancy link interface Maximum I/O Support:1024 local I/O points Backplane Power Consumption:410mA @5VDC Operating Temperature:0℃～+60℃ Storage Temperature:-40℃～+85℃ Relative Humidity:5%‑95%, non‑condensing Certifications:CE, UL, cUL
Functional Features Redundancy ready architecture, ACAT preset firmware‑parameter, dual‑Ethernet communication, high‑speed logic processing, redundant data synchronization, comprehensive fault diagnosis, online program monitoring.
Application Scenarios Hot‑standby redundant control system, high‑availability process industry control, key equipment requiring uninterrupted operation, ACAT‑configured spare replacement.
Performance Parameters Deterministic real‑time scan cycle Redundancy link fast data synchronization Dual‑network independent transmission Shock & vibration:Comply with IEC 60068
Structural Characteristics Standard RX3i plug‑in rack module Front‑panel multi‑color status LED indicators for running, fault and redundancy state Dual RJ45 Ethernet, RS232 and redundancy communication interface Backplane gold‑finger bus contact Internal high‑performance processor with ACAT firmware Mechanical locking latch
Working Principle Primary CPU executes user logic program, refreshes I/O image. Redundancy link synchronizes real‑time data to standby CPU. When primary CPU fails, standby CPU completes bumpless switch‑over and takes over system control. ACAT firmware defines factory preset parameters. Dual Ethernet ports realize control and monitoring network communication. Fault events are stored inside non‑volatile memory.
Installation Requirements Install into dedicated CPU slot of RX3i main rack. Complete cabinet protective grounding. Deploy dedicated redundancy link cable according to redundancy scheme. Configure network and redundancy parameters via programming software. Use shielded Ethernet cables. Power‑off rack for module replacement. Guarantee cabinet heat‑dissipation condition.
Usage Notes I/O quantity shall not exceed 1024 maximum rating. Verify ACAT firmware compatibility with redundant system. Back up project configuration periodically. Test redundancy switch‑over function during commissioning. Forbid on‑site disassembly. Avoid corrosive gas and liquid splash.
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