Description

ABB RFO810 Optical Repeater Module (Symphony Plus / AC800M)
ABB RFO810 is a redundant optical fiber relay / bus expansion module for ABB Symphony Plus DCS and AC800M system. It is used to convert the HN800/CW800 electrical bus into an optical fiber, extend the communication distance, and resist interference. It is the core component for remote I/O and interconnection across cabinets.

The product images shown are not actual photos. There are still more models that have not been launched yet.For more details or price negotiations, please contact us: Email: sales@fyplc.cn | WhatsAPP: +86 15359458915

Core positioning
Model: RFO810
Series: Symphony Plus / SD Series I/O / HN800 Bus Expansion
Functions: Fiber optic relay, electrical/optical conversion, bus isolation, long-distance extension
Applicable systems: ABB Harmony/Melody, AC800M, S+ Controller and Remote I/O (RFA01, etc. RFU)

Key Specifications
Bus Protocol: HN800, CW800 (4 Mbaud)
Optical Fiber Interface: ST connector, multimode 62.5/125 μm, wavelength 840 nm
Maximum Distance: 30 m within cabinet; 3,000 m between cabinets / across stations (3 km)
Power Supply: 24 VDC ±20%, approximately 0.5 A
Operating Temperature: -40℃ ~ +70℃
Installation: DIN rail
Dimensions (approx.): 250 × 80 × 200 mm;
Weight approximately 0.5 kg
Redundancy: Supports bus redundancy, can be configured in pairs

Typical application
Thermal power / Thermal power generation: Remote I/O optical fiber connection for boilers and turbines in the Symphony Plus system.
Chemical / Petrochemical: Control bus expansion in long-distance and highly interfered environments between plant units.
Water treatment / Energy: Distributed I/O interconnection for water plants and power stations across regions.
Across cabinets / Across workshops: Redundant fiber network for multiple cabinets and workshops in the AC800M system.