Technical Specifications Applicable Platform: PACSystems RX7i VME PLC system Function: Main CPU for user logic program execution Memory: On‑board user program and data memory Bus Interface: RX7i VME high‑speed backplane bus Communication Port: Built‑in programming and communication interface Operating Power: Supplied via RX7i rack VME backplane Operating Temperature: ‑40 ℃ to +70 ℃ Storage Temperature: ‑50 ℃ to +85 ℃ Relative Humidity: 5%‑95%, non‑condensing Mechanical Dimension: Single‑slot VME module for RX7i rack Certifications: CE, UL industrial control compliance
Functional Features Serves as main controller of RX7i system, cyclically executes user logic control program. Processes I/O status data from each module on VME backplane bus. Built‑in communication port supports program download, debugging and external device connection. Front‑panel multi‑LED group indicates CPU run, stop and hardware fault status. Complete system self‑diagnosis function detects internal hardware fault and records fault information.
Application Scenarios Core controller for PACSystems RX7i automation control cabinet. Large‑scale process‑control system for petrochemical, chemical and power plants. Complex logic control for metallurgy heavy‑industry automation equipment. Industrial renovation projects based on RX7i VME hardware platform.
Structural Characteristics Standard single‑slot VME plug‑in structure compatible with RX7i rack. Front‑panel LED indicator group shows CPU operation mode and fault alarm. Front‑side communication port for program configuration and debugging access. VME golden‑finger backplane interface for high‑speed data and power supply access.
Working Principle After system power‑on, CPU completes full‑range hardware self‑diagnosis. It runs user logic program cyclically, reads input status from I/O modules via VME backplane bus, carries out logic arithmetic, and sends output commands to corresponding output modules.
Installation Requirements Install CPU module into CPU designated VME slot of PACSystems RX7i standard rack. Ensure rack protective grounding strictly complies with official grounding specification. Finish hardware configuration in official programming software before system commissioning.
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