Description
Honeywell 51303944-100
Technical Specifications
- Communication Interface: LCN local control network and TDC 3000 backplane bus
- Power Supply: 5VDC from rack backplane
- Operating Ambient Temperature: 0°C to +60°C
- Storage Temperature: -40°C to +85°C
- Relative Humidity: 5% to 90% RH non-condensing
- Mounting Method: Plug-in slot installation on TDC 3000 rack
- Certification: UL, CE, RoHS
- Weight: 0.8 kg
Functional Features It converts LCN network protocol data into backplane bus data format for local rack modules. It filters redundant broadcast packets to reduce network bandwidth consumption. It continuously sends heartbeat packet to monitor LCN network link health. It supports redundant LCN network path automatic switching. It uploads network link loss, packet error and module fault alarm to TDC 3000 operator station. It provides front panel LED indicators for power, network active and fault status. It supports hot swap replacement without shutting down control node. It synchronizes system time stamp for all process data packets.
Application Scenarios TDC 3000 LCN local control network node rack Petrochemical plant DCS network communication cabinet Refinery TDC 3000 redundant network node Power plant legacy DCS network gateway rack Chemical plant TDC 3000 operator station communication node
Performance Parameters
- LCN Communication Speed: 5 Mbps
- Mean Time Between Failures: 810000 hours
- Insulation Resistance: Greater than 1000 MΩ
- ESD Immunity: 8kV contact discharge
- Packet Forwarding Rate: 8500 packets per second
Material Composition FR4 flame retardant conformal coated multilayer PCB LCN protocol FPGA processing chip Network transceiver and isolation transformer components Flash memory and SDRAM memory chips TVS surge protection components Gold plated edge connector for rack backplane Metal front panel with extraction handle and LED indicators
Structural Features Standard TDC 3000 paddle card form factor. Front panel carries network status LED indicators and extraction handle. Rear gold plated edge connector mates with rack backplane power and control bus. Internal PCB layout isolates high-speed network signal circuit from low-voltage logic circuit to reduce electromagnetic interference. Anti-key notch prevents reverse insertion into rack slot. Locking clip secures module firmly after installation. Internal shielding reduces crosstalk between dual network channels.
Working Principle After power supply from rack backplane, the module loads LCN communication firmware and establishes logical link with TDC 3000 local control network. It receives data packet from LCN network, unpacks protocol frame and transmits valid data to backplane bus for local control modules. It collects process data and alarm information from local rack modules, packages data into LCN protocol frame and sends to network. When heartbeat loss is detected on active network path, the module automatically switches communication traffic to standby path. Built-in diagnostic circuit uploads fault event to operator station.
Installation Requirements Wear anti-static wrist strap before installation. Insert module into designated PNI slot of TDC 3000 rack and lock extraction handle. Connect LCN coaxial network cable to corresponding network terminal. Power on rack and wait for self-test cycle to complete. Verify online status on TDC 3000 engineering station. Configure network node address and communication parameters. Test redundant network switchover function by disconnecting one network cable.
Usage Notes Handle module with anti-static protection all the time. Do not scratch gold plated contact surface of edge connector. Use specified impedance matching coaxial cable for LCN network wiring. Avoid high vibration and high temperature cabinet environment. Do not open or modify internal circuit components.
