Technical Specifications Part Number: 3BSE014666R1 Model: CI541V1 Communication Interface: RS485 serial channel Supported Protocol: Modbus‑RTU, custom serial protocol Baud Rate Range: 300 bps‑115.2 kbps Galvanic Isolation: Serial‑port side and control‑logic‑side galvanic isolation Power Supply: 24 V DC supplied by rack backplane Operating Temperature: ‑20 ℃ to +60 ℃ Storage Temperature: ‑40 ℃ to +85 ℃ Relative Humidity: 5‑95 %, non‑condensing Mounting Type: AC800M rack plug‑in module Protection Class: IP20 Certifications: CE
Functional Features Provides isolated RS485 serial communication hardware channel for AC800M controller. Supports Modbus‑RTU master‑mode and slave‑mode operation. Realizes data reading‑writing for third‑party serial intelligent instruments, meters and auxiliary control equipment. Front‑panel LED indicators display module power‑on, running, serial‑sending‑receiving and fault‑status. Built‑in surge‑protection circuit for serial‑port signal terminals. Plug‑in rack‑mount structure facilitates on‑site spare‑part replacement.
Application Scenarios AC800M control‑system serial‑communication interface spare‑part‑replacement. Industrial‑site connecting Modbus‑RTU intelligent meters, temperature controllers and auxiliary‑PLC equipment.
Installation Requirements Insert CI541V1 3BSE014666R1 module into designated slot of AC800M rack and lock spring‑clip buckle. Connect RS485 shielded twisted‑pair bus‑cable to front‑side screw‑type signal terminals. Install terminal‑matching resistance at two ends of RS485 bus‑segment. Complete cabinet protective‑earthing complying with AC800M system grounding specifications. Separate serial‑bus signal‑cables and high‑power power‑cables. Reserve ventilation‑heat‑dissipation space around module slot. Ambient operating temperature must stay within ‑20 ℃ ~ +60 ℃ without condensation.
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