Technical Specifications User Memory:80MB program memory, 80MB data memory Logic Execution Speed:0.05μs per boolean instruction Built‑in Port:2×Ethernet ports, 1×RS232 serial port, high‑speed redundancy link interface Maximum I/O Support:2048 local I/O points Backplane Power Consumption:430mA @5VDC Operating Temperature:0℃～+60℃ Storage Temperature:-40℃～+85℃ Relative Humidity:5%‑95%, non‑condensing Certifications:CE, UL, cUL
Functional Features Hot‑standby redundant control, high‑speed redundancy data synchronization, large‑capacity memory, dual‑Ethernet communication, high‑speed logic execution, comprehensive fault diagnosis, online program modification and monitoring.
Application Scenarios Critical process production line, power auxiliary control, petrochemical auxiliary unit, industrial system requiring zero‑stop redundant architecture.
Performance Parameters Bumpless redundancy switch‑over performance Deterministic real‑time scan cycle Dual‑network independent data transmission Shock & vibration:Comply with IEC 60068
Structural Characteristics Standard RX3i plug‑in rack module Front‑panel multi‑LED group for run, fault, primary‑standby status Dual RJ45 Ethernet, RS232 and redundancy link connector Backplane gold‑finger bus contact Internal high‑speed processor and large memory chip set Mechanical locking latch
Working Principle Primary CPU executes user logic program and refreshes I/O image table. High‑speed redundancy link synchronizes real‑time runtime data to standby CPU. When primary CPU malfunctions, standby unit completes seamless switch‑over and takes over entire system control task. Dual Ethernet ports realize separated control network and monitoring network communication. System fault and event data are stored inside non‑volatile memory.
Installation Requirements Insert module into CPU dedicated slot of RX3i main rack. Complete cabinet protective grounding. Use official dedicated redundancy link cable. Configure redundancy and network parameters via programming software. Deploy shielded Ethernet cables. Power‑off rack for module replacement, hot‑swap forbidden. Guarantee cabinet heat‑dissipation ventilation.
Usage Notes Total I/O points shall not exceed maximum 2048. Back up full project program and redundancy configuration. Perform redundancy switch‑over test during commissioning. Analyze diagnostic log for system troubleshooting. Forbid on‑site disassembly. Avoid corrosive gas, liquid splash and oil mist.
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