HIMA X-CPU 31 Secure CPU Module

HIMA  X-CPU 31 Secure CPU Module Detailed Explanation

1. Product Basic Positioning

X-CPU 31 is the **compact core processor unit of the HIMax safety control system platform**. It is specifically designed for small and medium-sized safety projects. It innovatively integrates the CPU computing and system bus two independent functions into a single module， which can free up more rack I/O slots， reduce the overall procurement cost, and seamlessly integrate with the complete HIMax system functions, suitable for the setup of SIS safety instrument systems.

Safety Certification Level

Certified by TÜV authority： In normal conditions， it meets **SIL3 (IEC61508/IEC61511)**， for railway scenarios， it can reach SIL4 (EN50126/50129)， in the mechanical field， it supports PL e safety level. It adopts a dual-core ARM Cortex-R52 lockstep 2oo2 fault-tolerant architecture， and a single-channel failure does not interrupt the safe logic operation.

2. Core Hardware Parameters Table

| Parameter Item | Detailed Specifications | | — | — |
| Processor | Dual-core ARM Cortex-R52 (Hardware Lockstep Redundancy) |
| Storage Configuration | 16MB Flash, 8MB RAM |
| Power Supply Requirements | 24VDC ± 10%, Supports Redundant Dual Power Supply |
| Interface Configuration | 2 Safety Ethernet (Supports PROFIsafe, OPC UA), 1 RS485 (Modbus RTU) |
| Expansion Capability | External X-IO Module, Maximum 512 Points of Safety I/O Accessible |
| Operating Performance | Logical Scan Cycle ≤ 10ms |
| Environmental Tolerance | Operating Temperature: -40℃~+70℃, Suitable for Industrial High and Low Temperature Harsh Sites |
| Dimensions | 150×110×45mm (Width / Height / Depth), Rack Slot Direct Insert Installation |
| Maintenance Characteristics | Supports Online Hot Swap of Modules, System Operation Not Affected During Maintenance Replacement |

Key Functional Features

1. Integrated Compact Architecture
Merges traditional independent CPU cards and bus cards, reducing rack slot occupation, expanding measurement point space, and making the layout of small-sized ESD and F&G project cabinets more compact, reducing hardware investment.
2. **Secure Real-time Communication**
Equipped with secure Ethernet links, can be distributedly networked to connect on-site I/O, upper-level SCADA, and third-party DCS; Native compatibility with mainstream industrial protocols, suitable for remote monitoring, cross-site interlock scenarios.
3. **Full-Chain Fault Self-Diagnosis
Real-time monitoring of processor cores, buses, and peripheral channels status, faults automatically record timestamp, trigger local alarms, facilitating maintenance traceability and troubleshooting.
4. Engineering Software Compatibility**
Equipped with HIMA SILworX programming configuration software, supports drag-and-drop safety logic development, online debugging, and remote parameter modification.

Typical Application Scenarios

– Petrochemical / Chemical: Emergency Shutdown ESD, Fire and Gas Monitoring F&G System;
– Power Industry: Boiler Burner Control, Unit Interlock Protection;
– Oil and Gas Field Stations: Wellhead, Pipeline Safety Interlock;
– Rail Transit, Large Machinery Safety Protection;
Can be combined with the previously queried ICS Triplex T8471C output card and ABB RTU560 remote unit to build a complete factory safety measurement and control system.