Description
Honeywell 51197012-100
Technical Specifications
- Communication Interface: LCN local control network
- Backplane Interface: TDC 3000 proprietary backplane bus
- Power Supply: 5VDC and 12VDC 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
- LCN Speed: 5 Mbps
Functional Features It converts LCN network protocol data into backplane bus data format for local rack modules. It packages data from local control modules and transmits to LCN network for other nodes and operator stations. It continuously sends heartbeat packet to monitor LCN link health. It supports dual redundant LCN network path and automatic seamless switchover. It filters invalid broadcast packet to reduce network bandwidth load. It uploads module fault, link loss and communication timeout alarm to TDC 3000 operator station. It supports hot swap replacement without host control node shutdown. It synchronizes network time stamp for all process data packets. It provides front panel LED indicators for power, primary link, standby link and fault status.
Application Scenarios TDC 3000 LCN network node rack interface Petrochemical plant DCS redundant control network node Refinery TDC 3000 operator station communication node Power plant legacy DCS LCN network gateway rack Chemical plant batch control system network interface
Performance Parameters
- Redundant Switchover Time: Less than 100ms
- Mean Time Between Failures: 800000 hours
- Insulation Resistance: Greater than 1000 MΩ
- ESD Immunity: 8kV contact discharge
- Maximum Packet Forwarding Rate: 10000 packets per second
Material Composition FR4 flame retardant conformal coated multilayer PCB LCN protocol FPGA processing chip Dual network PHY transceiver chips Network isolation transformers 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 integrates dual LCN coaxial cable terminals and four status LED indicators, plus extraction handle. Rear gold finger connector mates with rack backplane power and data bus. Internal PCB layout isolates high speed LCN signal circuit from backplane logic circuit to reduce electromagnetic interference. Anti-key notch prevents reverse insertion. Locking buckle secures module in rack slot. Internal shielding reduces crosstalk between two LCN channels.
Working Principle After power supply from rack backplane, the module loads LCN communication firmware and establishes two independent logical links to LCN A and LCN B network. It receives data packet from host control modules via backplane bus and sends packet through active LCN channel. It receives command packet from LCN network and transmits to host control logic board. When heartbeat packet loss is detected on one channel, the module automatically switches all communication traffic to standby channel immediately. Built-in diagnostic circuit monitors hardware failure and link abnormality, and sends fault alarm to TDC 3000 operator station.
Installation Requirements Wear anti-static wrist strap before installation. Insert module into vacant LCN interface slot of TDC 3000 rack and lock front handle. Connect specified impedance matching coaxial cable to LCN A and LCN B ports. Power on rack and wait for self-test cycle to complete. Verify online status on TDC 3000 engineering station. Configure LCN node address and network parameters. Test redundant 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 75Ω impedance coaxial cable for LCN network wiring. Avoid high vibration and high temperature cabinet environment. Do not open or modify internal circuit components.
