Description
Emerson KJ1740X1-BA1
Technical Specifications
- Communication Interfaces: RS232, RS485 multi-channel serial ports
- LocalBus Supply: 12VDC
- Operating Ambient Temperature: 0℃ ~ 60℃
- Storage Temperature: -40℃ ~ 85℃
- Relative Humidity: 5% ~ 95%, non-condensing
- Protection Grade: IP20
- Installation Type: DeltaV rack plug-in module
- Built-in serial communication fault diagnosis function
- Front panel LED indicators for module running and communication status
Functional Features Multi-channel serial transceiver circuit supports RS232 and RS485 physical interface communication. Protocol conversion circuit converts serial data packets into DeltaV internal data format for controller processing. Real-time link monitoring circuit detects serial cable disconnection and communication timeout state. Front-panel LED indicators display module running status and serial communication activity. Plug-in rack mechanical design supports hot swap under non-critical process operating conditions. Built-in surge protection circuit suppresses transient voltage interference on serial communication lines.
Application Scenarios DeltaV DCS control cabinets in chemical plants, water treatment plants and pulp and paper mills. It connects DeltaV DCS with legacy third-party automation equipment and online analytical instruments through serial communication links.
Performance Parameters Serial communication circuit maintains stable data transmission within full working temperature range. Diagnostic circuit captures serial communication abnormality rapidly. Interface circuit withstands electromagnetic interference from industrial cabinet 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, serial 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. External serial terminal connectors are reserved for field serial cable connection. Internal metal shielding reduces electromagnetic interference impact.
Working Principle The module connects to DeltaV controller through rack backplane, and connects to third-party devices via RS232 or RS485 serial cables. It receives serial data uploaded by third-party instruments, converts data format and transmits data to DeltaV controller through LocalBus. It receives read and write commands from DeltaV controller and forwards commands to connected serial field devices. On-board monitoring circuit checks serial communication frame and connection state continuously. When communication timeout or cable disconnection 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. Connect field serial communication cables to module serial terminals. Use shielded twisted-pair cables for RS485 wiring. Separate serial communication cables from high-voltage power cables. Reserve air circulation space around module for heat dissipation. Complete serial communication protocol and baud rate 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 serial cable and connector condition regularly. Do not apply overvoltage to serial communication terminals. Do not disassemble module housing.
