Honeywell 620-0073C ELPM Ethernet Loop Processor Module (S9000 / Experion Compatible)
- Product Code: 620-0073C
- Availability: In Stock
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Application Attributes：Honeywell 620-0073C ELPM Ethernet Loop Processor Module (S9000 / Experion Compatible)
Honeywell 620-0073C ELPM Ethernet Loop Processor Module (S9000 / Experion Compatible)
Manufacturer: Honeywell Process Solutions
Model: 620-0073C (ELPM Ethernet Loop Processor Module C Revision)
Series: Honeywell S9000 DCS / Experion PKS Hybrid Control System
Type: Industrial Ethernet protocol conversion & loop communication processor card
Function: Bidirectional conversion between Modbus RTU (RS485) and Modbus TCP; build redundant industrial control loop networks; realize data exchange between field RTU instruments and upper FTE/TCP DCS servers; support master-slave multi-device polling, broadcast storm suppression, electrical isolation for anti-interference
1. Overview
620-0073C is Honeywell ELPM (Ethernet Loop Processor Module) dedicated communication processor card, compatible with S9000 legacy DCS and Experion PKS modern control systems. It acts as a core protocol gateway between serial field devices and industrial Ethernet backbone. It converts traditional Modbus RTU 485 signals to standard Modbus TCP, allowing up to 255 field transmitters, valve positioners and secondary PLCs to access the DCS control network. It supports redundant ring network topology to avoid single-point communication failure; built-in multi-layer hardware isolation and surge suppression eliminate ground loop and electromagnetic interference in chemical, power and oil & gas sites. Rack-mounted hot-swappable design, full PCB anti-corrosion conformal coating, widely used for transformation and expansion of old Honeywell S9000 control cabinets.
2. Technical Specifications
• Power Supply: 24VDC industrial power, power consumption ≤5W
• Ethernet Port: 10/100Mbps auto-adaptive RJ45, Modbus TCP Client/Server dual mode
• Serial Interface: RS485 M12 connector, Modbus RTU Master/Slave switchable
• Max RTU Device Capacity: 255 field Modbus RTU devices per card
• Network Topology: Support redundant ring, star, daisy-chain loop architectures
• Galvanic Isolation: 1500V isolation between Ethernet, RS485 and internal logic circuits
• Anti-surge Protection: TVS transient voltage suppression for all external ports
• Response Delay: ≤1ms real-time data forwarding
• Operating Temperature: -40°C ~ +70°C
• Storage Temperature: -40°C ~ +85°C
• Humidity: 5%~95% RH non-condensing
• Dimensions: 110mm × 75mm × 35mm
• Weight: Approx. 300g
• Mounting: Standard S9000 rack slot, hot-swap support
• Certifications: CE, UL, CSA, Class 1 Div 2 hazardous area certified
3. Key Features
• Dual Protocol Bidirectional Conversion Seamless Modbus RTU ↔ Modbus TCP translation without extra gateway equipment
• Large Capacity Multi-Device Polling Connect up to 255 serial field instruments to DCS Ethernet network
• Redundant Ring Network Support Automatic link failover to prevent communication interruption during cable failure
• Full Isolation & Noise Suppression Separate serial and Ethernet circuits to eliminate ground loop interference in heavy industrial sites
• Hot-Swap Rack Design Replace module online without shutting down the whole control cabinet
• Wide Temperature & Anti-Corrosion PCB Coating Adapt to humid, dusty, corrosive power and chemical plant environments
• Compatible with S9000 & Experion PKS Suitable for old system renovation and new hybrid control projects
4. Applications
• Thermal power plant S9000 DCS cabinet Modbus instrument communication expansion
• Refinery & petrochemical plant field RTU transmitters / valve positioners network access conversion
• Oil & gas pipeline compressor station redundant control loop communication gateway
• Water treatment, metallurgy factory hybrid DCS serial-Ethernet protocol conversion
Honeywell © 620-0073C ELPM Ethernet Loop Processor Module