Introduction
Emerson DeltaV is a leading distributed control system (DCS) platform for process automation, offering a comprehensive range of controllers and safety instrumented system (SIS) modules to meet the demands of modern industrial processes. From the foundational M2 Controller to the high-performance MX Controller, and from the SLS 1508 Logic Solver to the complete SISNet communication infrastructure, DeltaV provides scalable, reliable solutions for both basic process control and safety-critical applications.
This article provides a complete overview of the Emerson DeltaV M-series controllers, PROVOX migration modules, and DeltaV SIS safety modules. Whether you are maintaining a legacy system, upgrading your control architecture, or sourcing hard-to-find spares, this guide will help you identify the right components for your application.
DeltaV M-Series Controllers
The DeltaV M-series controllers deliver scalable control capacity for a wide range of process applications. All controllers feature auto-addressing, automatic I/O detection, and plug-and-play functionality for fast project execution.
KJ2001X1-BA1 – M2 Controller
The KJ2001X1-BA1 is the DeltaV M2 Controller, an early-generation controller that has been largely superseded by later models. It provides control execution functions including logic processing, data handling, communication, and coordination of subsystem resources.
Key Information:
Model: M2 Controller
Status: Discontinued by manufacturer
Local Bus Rating: 5 VDC / 2A
Best for: Maintenance and replacement of existing M2 installations
KJ2002X1-BA1 – M3 Controller
The KJ2002X1-BA1 is the DeltaV M3 Controller, a mid-range model in the M-series. The M3 offers improved processing speed and reliability compared to earlier generations, making it suitable for a wide range of process control applications.
KJ2002X1-CA1 – M5+ Controller
The KJ2002X1-CA1 is the M5 Plus Controller, delivering higher processing capacity than the M3. The MD Plus Controller is over 400% faster than the M5 Plus, with more than 3 times the user-configurable memory of the MD Controller.
KJ2003X1-BA2 – MD Controller
The KJ2003X1-BA2 is the MD Controller, offering enhanced processing power and memory capacity for medium-sized process control applications.
KJ2003X1-BB1 – MD Plus Controller
The KJ2003X1-BB1 is the MD Plus Controller, featuring a 266 MHz processor and 48 MB main memory. It supports HART communication and fieldbus functionality, with auto-addressing and plug-and-play capability requiring no configuration. It supports controller redundancy with bumpless transfer to the standby controller upon failure.
KJ2004X1-BA1 – Remote Interface Unit
The KJ2004X1-BA1 is the Remote Interface Unit, used to extend the I/O connectivity of the DeltaV system and support communication with remote I/O racks.
KJ2005X1-BA1 – MX Controller
The KJ2005X1-BA1 is the MX Controller, one of the highest-performance models in the M-series. The MX Controller provides all the features and functions of the MD Plus Controller with double the capacity:
The MX Controller supports 1:1 redundancy, and existing MD/MD Plus or MQ Controllers can be upgraded online. It executes control strategies as fast as every 100 ms and can communicate up to 4,000 exception values per second. It supports advanced control features including neural control and model predictive control.
PROVOX Migration Controllers
KJ2101X1-BA1 – PROVOX M3+ Controller Card
The KJ2101X1-BA1 is the PROVOX M3+ Controller Card, designed for PROVOX system migration to DeltaV.
KJ2101X1-CA1 – PROVOX M3 Controller Card
The KJ2101X1-CA1 is the PROVOX M3 Controller Card, supporting migration and upgrade from legacy PROVOX systems.
DeltaV SIS Safety Instrumented System Modules
DeltaV SIS is an independent safety layer dedicated to safety instrumented functions, physically and logically separated from the basic process control system (BPCS) to ensure maximum protection of personnel and assets.
KJ2201X1-BA1 – SLS 1508 Logic Solver
The KJ2201X1-BA1 is the SLS 1508 Safety Logic Solver, used to execute safety instrumented functions (SIF).
Core Features:
Dedicated safety logic execution, independent of the basic process control system
High-integrity design, compliant with safety certification requirements
ISA-S71.04-1985 Class G3 conformal coating
Operating Temperature: -40°C to +70°C
Power Supply: 24 VDC ±20%
Maximum Field Power: 4.0 A
Hazardous Area Certification: Zone 2
Important: This module cannot be removed or inserted with system power energized unless the area is known to be non-hazardous. Calibration is not required.
KJ2201X1-HA1 – Simplex SLS Terminal Block
The KJ2201X1-HA1 is the Simplex Terminal Block for the SLS 1508, featuring the yellow SIS-specific terminal block design.
KJ2201X1-JA1 – Redundant SLS Terminal Block
The KJ2201X1-JA1 is the Redundant Terminal Block for the SLS 1508, supporting 1:1 redundancy configurations for the SIS Logic Solver.
KJ2221X1-BA1 – SISNet Repeater
The KJ2221X1-BA1 is the SISNet Repeater, used to regenerate and extend SISNet communication signals. SISNet is a dedicated network for safety information transmission, carrying only safety signals and unaffected by basic process control network failures.
Key Specifications:
Fully redundant communication: primary repeater connects to one fiber optic ring, secondary repeater forms an independent ring
Connects up to 32 DeltaV SIS nodes
Guaranteed data broadcast update time of 50 ms between all nodes
Port Type: ST female
KJ2221X1-EA1 – SISNet Repeater Carrier
The KJ2221X1-EA1 is the Repeater Carrier, used to mount the SISNet Repeater module.
KJ2222X1-BA1 – SISNet Distance Extender
The KJ2222X1-BA1 is the SISNet Distance Extender, used to extend communication distance between SISNet repeaters via single-mode fiber. Supports combined multimode and single-mode fiber, with single-mode fiber reaching up to 60 km.
KJ2231X1 Series – Auxiliary Modules
KJ2231X1-BA1 – Auxiliary Relay ETA-Direct Module
KJ2231X1-BB1 – Auxiliary Relay DTA-Direct Module
KJ2231X1-BC1 – Auxiliary Relay Diode Module
KJ2231X1-EA1 – SIS Relay Module
KJ2231X1-EB1 – Voltage Monitor
KJ2231X1-EC1 – End of Line Resistance Module
KJ2231X1-ED1 – RC Compensator
KJ2231X1-EE1 – SIS Current Limiter
These modules provide auxiliary protection, monitoring, and signal conditioning functions for SIS systems.
System Compatibility Notes
Controller and I/O Pairing Requirements:
M-series I/O interfaces must be used with M-series controllers.
S-series I/O interfaces must be used with S-series controllers.
Carrier types cannot be mixed.
Software Requirements:
Redundancy Support:
DeltaV controllers support 1:1 redundancy with automatic bumpless transfer upon failure. Redundant I/O cards use the same Series 2 I/O cards with no additional configuration required.
Frequently Asked Questions
Q: Is the KJ2001X1-BA1 M2 Controller still in production?
A: This model has been discontinued by the manufacturer, but is still available as a spare part on the market. Verify system version compatibility before replacement.
Q: What advantages does the MX Controller offer over the MD Plus?
A: The MX Controller provides 2x control capacity, 2x user memory, and 2x DST count, and supports advanced control features such as neural control and model predictive control.
Q: Can the SLS 1508 Logic Solver be hot-swapped?
A: No. Due to its safety-critical nature, this module cannot be removed or inserted with system power energized unless the area is known to be non-hazardous.
Q: How many nodes does the SISNet Repeater support?
A: It can connect up to 32 DeltaV SIS nodes, with the entire SISNet ring reaching up to 1920 km.
Part 6: Request a Quote
We supply all the Emerson DeltaV controllers and SIS modules listed above, including:
KJ2001X1-BA1 M2 Controller
KJ2002X1-BA1 M3 Controller
KJ2002X1-CA1 M5+ Controller
KJ2003X1-BA2 MD Controller
KJ2003X1-BB1 MD Plus Controller
KJ2004X1-BA1 Remote Interface Unit
KJ2005X1-BA1 MX Controller
KJ2101X1-BA1 / KJ2101X1-CA1 PROVOX Controller Cards
KJ2201X1-BA1 SLS 1508 Logic Solver
KJ2201X1-HA1 / KJ2201X1-JA1 SLS Terminal Blocks
KJ2221X1-BA1 / KJ2221X1-EA1 SISNet Repeater & Carrier
KJ2222X1-BA1 SISNet Distance Extender
KJ2231X1 Series Auxiliary Modules
