The Honeywell ISC-UCMX01 (part number 51307195-175) is a high-integrity safety controller module designed for use in safety instrumented systems (SIS) within the Experion PKS environment. As part of the UCMX (Universal Control Module Extended) family, it provides SIL3-capable logic solving for critical applications such as emergency shutdown (ESD), fire and gas detection, and burner management. The module integrates seamlessly with Honeywell’s safety architecture, offering both high availability and rigorous fault tolerance.
SIL3 Certification: Certified for use in safety applications up to Safety Integrity Level 3 per IEC 61508 and IEC 61511.
Integrated Safety Logic: Executes safety application programs (logic diagrams, function blocks) with fast scan times and deterministic response.
Redundant Architecture: Supports 1oo2D (one-out-of-two with diagnostics) configurations for high availability while maintaining safety integrity.
Comprehensive Diagnostics: Built-in self-testing, memory checks, and communication monitoring to detect and safely react to failures.
Secure Communication: Interfaces with Experion PKS via safety-dedicated networks, ensuring separation between control and safety functions.
Processor: 32-bit RISC with integrated safety coprocessor
Memory: 16 MB application memory, with ECC protection
Safety Integrity: SIL3 capable (IEC 61508)
I/O Capacity: Supports up to 1024 safety I/O points via remote I/O links
Communication: Redundant safety-dedicated Ethernet, Modbus serial (for third-party integration)
Operating Temperature: -40°C to +70°C
Certifications: TÜV Rheinland SIL3, CE, CSA, FM

The ISC-UCMX01 is deployed in a wide range of high-risk industries including oil and gas (offshore and onshore), chemical processing, refining, and power generation. Typical applications include emergency shutdown systems, high-integrity pressure protection systems (HIPPS), fire and gas detection logic, and turbine/compressor control. It ensures that any dangerous condition is detected and mitigated within the required safety time.
The module communicates with Experion PKS controllers over a dedicated safety network, allowing operators to view safety system status, alarms, and events from the same HMI while maintaining strict separation of control and safety logic. Engineering is performed using Honeywell’s Safety Manager software, which provides certified function blocks and simulation tools.
Designed to meet the most stringent industrial safety standards, the ISC-UCMX01 undergoes extensive testing and validation. Its fault-tolerant design and comprehensive diagnostics minimize spurious trips while ensuring that dangerous failures are detected and the process is brought to a safe state. The module is backed by Honeywell’s global safety support and lifecycle services.
The Honeywell ISC-UCMX01 (51307195-175) safety controller module delivers uncompromising performance for critical process safety applications, protecting people, assets, and the environment.



