Description
Emerson KJ2231X1-EC1
Technical Specifications
- Applicable System: Emerson DeltaV DCS
- Communication Interface: DeltaV remote I/O bus
- LocalBus Supply: 12VDC
- Operating Ambient Temperature: 0℃ ~ 60℃
- Storage Temperature: -40℃ ~ 85℃
- Relative Humidity: 5% ~ 95%, non-condensing
- Protection Grade: IP20
- Rack plug-in installation structure
- Built-in remote bus communication fault diagnosis function
- Front panel LED indicators for communication and module status
Functional Features High-speed communication circuit realizes bidirectional data transmission between DeltaV controller and remote I/O racks. Real-time bus monitoring circuit detects communication interruption, signal attenuation and remote rack offline state. Front-panel LED indicators display module running status and remote bus communication state. Plug-in rack mechanical design supports hot swap under non-critical process operating conditions. Built-in surge protection circuit suppresses interference on remote I/O communication bus.
Application Scenarios DeltaV DCS main control cabinets in chemical plants, oil refineries and natural gas processing facilities. It serves as communication bridge between DeltaV main controller and remote distributed I/O racks located in field areas.
Performance Parameters Communication circuit maintains stable high-speed data transmission within full working temperature range. Diagnostic circuit captures remote bus communication abnormality rapidly. Bus interface withstands electromagnetic interference from industrial field environment. Data transmission keeps low packet loss rate under continuous long-time operation.
Material Composition Flame-retardant engineering plastic front panel. Multi-layer flame-retardant glass-fiber epoxy PCB. Communication processing microprocessor, bus transceiver chips and LED indicators. Gold-plated copper alloy backplane connector. Metal shielding components for anti-electromagnetic interference.
Structural Features Standard plug-in card matching DeltaV rack slot. Front panel equipped with running status LED and communication fault LED indicators. Guide rails and mechanical latch lock module firmly inside rack. Rear gold-plated connector mates with DeltaV rack backplane. Internal metal shielding reduces electromagnetic interference impact.
Working Principle The module connects to DeltaV controller and remote I/O racks through rack backplane and remote communication bus. It receives control instructions from DeltaV controller and forwards instructions to corresponding remote I/O modules. It collects field process data and diagnostic information uploaded by remote I/O modules and transmits data back to controller. On-board monitoring circuit checks bus signal quality and remote rack online status continuously. When communication failure or remote rack offline occurs, module generates fault alarm and sends alarm message to DeltaV operator station.
Installation Requirements Insert module along rack guide rail into designated DeltaV rack slot and lock mechanical latch. Confirm backplane connector fully engages with rack backplane. Reserve air circulation space around module for heat dissipation. Complete remote bus communication parameter configuration in DeltaV engineering workstation after hardware installation.
Precautions for Use Take anti-static protective measures during module handling. Do not touch gold-plated connector pins directly by bare hands. Inspect connector contact condition and remote communication cable regularly. Do not apply overvoltage to communication terminals. Do not disassemble module housing.
