I. Basic Information
Brand: Emerson (DeltaV M series DCS system)
Model: KJ4110X1-BA1
Product Type: 16-channel universal DI/DO terminal base (discrete quantity I/O wiring terminal board)
Pre-coupling Card: Compatible with DeltaV M series 16-channel analog input/output I/O main control card, unified on-site cable transfer base, supports hot-swappable replacement of I/O pre-coupling card without disconnection
Explosion-proof Certification: ATEX, IECEx intrinsically safe explosion-proof certification, can be used in hazardous area 1 of the chemical industry, CE, CSA industrial safety certification
Core Hardware Parameters
Channel Specifications: 16-channel isolated digital DI/DO universal terminal, each channel can be configured with 24VDC active switch quantity input and relay passive output Electrical parameters
Rated operating voltage: DC 24V
Maximum output current of DO single channel: 2A
Channel-to-ground isolation withstand voltage: 2500VAC, effectively suppressing ground loops and frequency converter electromagnetic interference
Built-in channel fuse, single-channel short circuit will not burn out the entire board and the I/O front card
Power supply: Unified 24VDC power supply from DeltaV I/O backplane, no need for external power supply
Environmental parameters
Operating temperature: -40℃ ~ +70℃
Storage temperature: -40℃ ~ +85℃
Humidity: 5% ~ 95% RH (no condensation), protection grade IP20, circuit board with three protection coatings
Physical dimensions: 144×89×38mm, standard DIN rail installation
Core Function Description
Field cable connection: Switch signals such as on-site solenoid valves, valve position switches, relays, local buttons, etc., are crimped on the base of this terminal block, and are connected to the DeltaV I/O main control card at the rear through dedicated connectors. Replacing the card does not require removing the field cables, significantly reducing maintenance downtime.
Short-circuit protection for circuits: Each channel integrates independent insurance protection to avoid short-circuiting of on-site lines and burning of system I/O cards.
Fault circuit diagnosis: Supports line breakage and short-circuit fault detection, and fault status can be uploaded to the DeltaV system upper computer for alarm.
Safety isolation for intrinsically safe explosion-proof: Safe isolation of switch signals at hazardous areas, meeting the wiring specifications for explosion-proof areas in petrochemical, coal chemical, and other industries.
Panel and Interface Description
Front end: Screw-fastened terminal block, 16 signal + common power supply terminals
Back end: Two sets of European plugs, connected to M series I/O main control card
Status indicator lights: Power operation light, channel fault alarm indicator light
V. Typical Application Scenarios
Coal-fired power plants, biomass power plants boiler, turbine DCS system: Valve position, damper feedback, local start-stop, trip relay switch quantity collection and control output
SIS/DCS system explosion-proof area DI/DO signal terminal connection
Remote start-stop of fans, pumps, belt conveyors in water treatment, metallurgy, cement factories, and remote acquisition of equipment status
Replacement of old DeltaV M series system spare parts, expansion of I/O points in control cabinets
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