Description
The Emerson KJ3242X1-BK1 (Part Number 12P4711X052) is an S-series Redundant I/O Bus Carrier for the DeltaV™ Distributed Control System (DCS). It serves as the physical and electrical foundation for mounting and connecting DeltaV I/O modules and their corresponding terminal blocks to the controller backplane.
Product Parameters (Datasheet)
- Model Number: KJ3242X1-BK1
- Part Number: 12P4711X052
- Series: DeltaV S-series
- Capacity: 8 Slots (Supports up to 8 I/O modules and 8 terminal blocks)
- Redundancy: Integrated redundant I/O bus communication
- Input Power: 24V DC (Redundant power inputs via the carrier)
- Carrier Type: I/O Interface Carrier
- Mounting: Horizontal or vertical DIN rail mounting
- Connection: Plug-and-play interface for I/O modules
- Operating Temperature: -40°C to +70°C (-40°F to 158°F)
EMERSON KJ3242X1-BK1 12P4711X052
Country of Origin
This carrier is engineered and manufactured by Emerson Automation Solutions in the USA, designed for global deployment in high-availability process environments.
Application Fields
The KJ3242X1-BK1 is a core infrastructure component in DeltaV installations:
- Refining & Petrochemical: Hosting I/O for safety instrumented systems and process control.
- Pharmaceuticals: Providing a modular base for sterile environment instrumentation.
- Power Generation: Managing data flow from boiler and turbine sensors to the AC controller.
- Pulp & Paper: Distributing I/O throughout large-scale machinery sections.
- Water & Wastewater: Acting as the hub for decentralized treatment plant automation.
Product Usage Instructions
- Mechanical Installation: Snap the carrier onto a standard 35mm DIN rail. If using multiple carriers, they lock together via side-mounted power and bus connectors to extend the backplane.
- Power Wiring: Connect redundant 24V DC power to the terminal points on the carrier. This powers the internal bus and provides wetting voltage to the installed I/O modules.
- Module Insertion: Align the DeltaV S-series I/O module with the slot and press firmly until the locking lever clicks. The module “hot-swaps” easily without disturbing other modules on the carrier.
- Addressing: The DeltaV system automatically recognizes the carrier and slot position. No manual dip-switch addressing is required for the carrier itself.
- Grounding: Ensure the DIN rail is properly bonded to the system’s functional earth. The carrier uses the rail for grounding and electromagnetic shielding.
Product Technical Description
Technically, the KJ3242X1-BK1 is a passive backplane with active redundant communication paths. It facilitates the S-series “Electronic Marshalling” or standard I/O distribution. It contains the logic paths for the Primary and Secondary I/O buses, ensuring that if one communication path from the controller fails, the modules remain accessible via the redundant path. The “BK1” designation typically refers to a bulk-packaged or specific revision level of the S-series hardware, which features smaller footprints and more robust environmental ratings than the legacy M-series hardware.
Q&A (Common Questions)
Q: Can I mix S-series and M-series modules on this carrier? A: No. The KJ3242X1-BK1 is specifically designed for S-series hardware. M-series modules have a different physical form factor and connector pinout.
Q: What is the purpose of the 12P4711X052 part number? A: This is the specific manufacturing assembly number. It is used for precise tracking of hardware revisions and spare part procurement in Emerson’s global database.
Q: Does this carrier require a separate power supply module? A: The carrier receives power from the system’s 24V DC power distribution. While it doesn’t have an onboard “power supply” (transformer), it acts as the distribution hub for the modules plugged into it.
Q: Is this carrier compatible with “CHARMs”? A: No. CHARMs (Characterization Modules) require a specific CHARM I/O Card Carrier. The KJ3242X1-BK1 is for standard S-series 8-wide or 4-wide I/O module configurations.
Similar Model Recommendations
- Emerson KJ3241X1-BA1 (S-series 2-wide Controller Carrier)
- Emerson KJ3001X1-BA1 (S-series System Power Supply)
- Emerson KJ3222X1-BA1 (S-series Digital Input Module)
- Emerson KJ3221X1-BA1 (S-series Analog Input Module)
- Emerson KJ4001X1-CA1 (DeltaV S-series I/O Interface)
For pricing or technical support regarding the Emerson KJ3242X1-BK1, please contact our DeltaV specialists today.
