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HIMA F8652X｜CPU Module｜
System Adaptation
This safety CPU is designed for HIMA H41q and H51q-MS / HS / HRS safety control systems.
It requires Operating System V7.0-7 or later and operates as the primary / backup processor in rack-based SIS and ESD architectures.
Key Specifications
Processor Architecture
Dual Intel 386EX 32-bit processors
Lockstep, clock-synchronized operation
Clock frequency: 25 MHz
Memory Configuration
System Flash: 1 MB
User Program Flash: 1 MB
Data SRAM: 1 MB
Communication Interfaces
2 × electrically isolated RS-485
Selectable baud rates: 9.6 / 57.6 kbit/s
Supports Modbus RTU / ASCII
Communication expansion via:
F8627X Ethernet coprocessor
F8628X PROFIBUS DP coprocessor
Diagnostics & Safety Outputs
4-digit matrix display
LED status indicators
Fault-safety watchdog output:
24 V DC, max. 500 mA
Short-circuit protected
Power Supply & Consumption
Power supply: 5 V DC / 2 A, provided by F7300A power module
Typical power consumption: approx. 5 W
Mechanical & Environmental
Mounting: 19-inch rack
Width: 8 SU
Operating temperature: −20 °C to +60 °C
Supports hot swapping
Core Functionality
Redundant Safety Computation
Dual CPUs operate in clock-synchronized lockstep with continuous cross-checking, enabling fast fault detection and deterministic fault-safe behavior.
System Control Center
Acts as the central safety processor, coordinating:
Safety I/O modules (F6217, F6706)
Communication coprocessors (F8627X, F8628X)
Execution of safety logic, interlocks, and shutdown functions
Comprehensive Diagnostics
Real-time monitoring of:
Supply voltage
Temperature
Communication status
Memory integrity
Supports rapid fault localization, reset, and recovery.
Configuration & Maintenance
Engineered via ELOP II
Supports dual-machine hot standby
Online diagnostics
Hot-plug maintenance without system shutdown
Redundancy & Expansion
Redundant Architecture
Dual-machine hot standby
Primary / backup CPU configuration
Can be combined with F8650X / F8650E to form a highly available and fault-tolerant safety system
Expandable Components
F8627X – Ethernet communication coprocessor
F8628X – PROFIBUS DP communication coprocessor
F6217 / F6706 – Safety I/O modules
Typical Applications
Used in safety-critical industrial systems, including:
Petrochemical and chemical plants
Offshore oil & gas installations
Power generation facilities
Metallurgy and heavy industry
Typical safety functions include:
Process emergency shutdown (ESD)
Unit and equipment protection
Safety interlocking
HIMA F8652X｜CPU Module｜
By structuring the information in this manner, the article provides a clear and organized understanding of input channels, transducer supply, and communication implementations in distributed control systems.
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