Technical Specifications Module Type: Fieldbus Electrical‑Optical Conversion Communication Module Bus Protocol: HDLC fieldbus protocol for I/A series Optical Interface: Multimode fiber optical port Communication Rate: 2 Mbps Operating Power: 24 VDC Max Power Consumption: 7 W Operating Temperature: −20 °C to +70 °C Storage Temperature: −40 °C to +85 °C Relative Humidity: 5%‑95%, non‑condensing Mounting: DIN‑rail baseplate installation Certifications: CE industrial fieldbus optical‑communication module compliance
Functional Features Completes conversion between electrical fieldbus signal and optical signal for long‑distance bus transmission. Supports redundant‑pair deployment to enhance communication‑link fault tolerance. Built‑in link‑status self‑diagnosis function reports optical‑link break and communication‑abnormal events. Front‑panel LED indicators intuitively display module power, bus and optical‑link working status. Hot‑swappable module design for on‑site replacement without interrupting other bus‑segment operationMade-…。
Application Scenarios Applied for large‑scale DCS projects with dispersed I/O cabinets in petrochemical and power‑plant industries. Realizes long‑distance fieldbus communication between main‑control room controller and remote‑site I/O cabinets via optical fiber.
Structural Characteristics Rugged extruded aluminum compact housing. Gold‑plated bottom connector for electrical connection with DIN‑rail baseplate. Optical‑fiber interface on module front side. Front‑panel multi‑LED array for power, bus activity and optical‑link status indicationMade-…。
Working Principle FCM10E receives electrical HDLC fieldbus signal from controller side. Internal circuit converts electrical signal into optical signal and transmits through optical fiber to remote‑cabinet paired FCM10E module. Remote‑side FCM10E converts optical signal back to electrical fieldbus signal and connects to FBM I/O modules. When optical‑link fault occurs, module uploads diagnostic alarm information to DCS system. Redundant‑pair configuration realizes seamless link switchover.
Installation Requirements Mount matched baseplate on standard 35 mm DIN‑rail inside control cabinet. Insert FCM10E onto baseplate and lock mechanical buckle. Complete fieldbus electrical‑signal wiring on baseplate terminals. Connect multimode optical‑fiber jumper to module optical port. Configure communication‑redundancy parameters in DCS configuration software after power‑on.
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