Technical Specifications
Core Processor & Clock Frequency
The
HIMA F8652X is equipped with two identical microprocessors to ensure fail-safe operation. Specifically, it uses two Intel 386EX 32-bit microprocessors, each operating at a clock frequency of 25 MHz. This dual-processor design provides redundant operation, critical for safety-related tasks in industrial environments.
Additionally, the dual microprocessors work in synchronization to monitor each other’s performance, ensuring any faults are detected immediately. This redundancy makes the F8652X suitable for safety-critical applications where reliability is non-negotiable.
Memory Configuration (Per Microprocessor)
Each microprocessor in the
HIMA F8652X has dedicated memory spread across 5 integrated circuits (ICs), ensuring independent and reliable operation. The memory configuration includes the following components:
Operating System Flash-EPROM: 1 MByte – stores the module’s operating system for stable performance
User’s Program Flash-EPROM: 512 kByte – holds the user’s safety logic and application programs
Data Store sRAM: 256 kByte – provides temporary storage for real-time data and system variables
Furthermore, the memory design ensures data integrity and quick access, supporting the F8652X’s real-time response capabilities for safety-related control tasks.
Communication Interfaces
The HIMA F8652X comes with 2 serial RS485 interfaces to facilitate reliable industrial communication. These interfaces enable the CPU to connect with other modules, sensors, and devices in the H41q/H51q system, supporting data exchange for safety control and monitoring.
Moreover, the RS485 interfaces are designed for industrial environments, ensuring resistance to noise and interference, which is essential for maintaining stable communication in harsh industrial settings.
Diagnostic Display & Error Handling
The HIMA F8652X features a user-friendly diagnostic display to simplify troubleshooting and maintenance. This display includes a 4-digit alphanumerical matrix display that provides requestable system information, making it easy to identify status and faults.
Additionally, the diagnostic display is equipped with 2 LEDs for common error indication: one for CPU errors (central module issues) and one for IO errors (testable IO-module issues). It also has 2 switch-over pushbuttons (marked with <>) to request detailed error information, and an ACK pushbutton to reset error indications.
When in failure stop mode, the ACK pushbutton functions like a system power-on, allowing for quick restart after resolving faults. For more detailed information on the diagnostic display, refer to the documentation “functions of the operational system BS 41q/51q”.
Fail-Safe Watchdog
The HIMA F8652X includes a fail-safe watchdog with an output to ensure safe operation in the event of internal faults. The watchdog output operates at 24 V DC, can handle a load of up to 500 mA, and is short-circuit proof.
This watchdog continuously monitors the CPU’s operation; if it detects a fault (e.g., processor failure, memory corruption), it triggers a safe shutdown to prevent hazardous conditions, a critical feature for safety-related CPU modules.
Mechanical & Environmental Parameters
Mechanical Construction & Dimensions
The HIMA F8652X features a robust construction with 2 PCBs in European standard, plus 1 additional PCB dedicated to the diagnostic display circuits. Its space requirement is 8 TE (Terminal Equipment), a standard size for industrial modules.
This design ensures the F8652X fits seamlessly into H41q/H51q system racks, allowing for easy integration into existing control cabinets without occupying excessive space.
Electrical & Environmental Requirements
The F8652X operates on a 5 V DC power supply and draws a current of 2000 mA, providing sufficient power for its dual processors and memory components while maintaining efficient operation.
It operates reliably in typical industrial environments, withstanding a wide range of operating temperatures to ensure stability in harsh conditions. Additionally, it meets strict industrial standards for humidity resistance and electromagnetic interference, making it suitable for use in various industrial settings.
Start-Up & Maintenance Hints
Buffer Battery Care
The HIMA F8652X uses a buffer battery to protect critical data during power interruptions. The battery’s lifetime without voltage feeding is 2500 days at 25 °C and 100 days at 60 °C. It is recommended to replace the buffer battery every 4 years.
The recommended battery is a lithium battery, such as type CR 2477N with HIMA part number 44 0000018. Regular battery replacement ensures data integrity and prevents unexpected system issues.
Configuration Checks
During start-up and maintenance, check the bus station number and transmission rate at switch S1 to ensure correct settings. Proper configuration of these parameters is essential for seamless communication between the F8652X and other system components.
Installation Guide
Pre-Installation Preparation
Before installing the HIMA F8652X, check the H41q/H51q rack slot to ensure it matches the module’s 8 TE space requirement. First, turn off the system power completely to avoid electrical damage during installation. Next, prepare the necessary tools, including a screwdriver and RS485 cables.
Additionally, confirm that the buffer battery (type CR 2477N) is properly installed and in good condition. This step ensures critical data remains protected during power interruptions after installation.
Step-by-Step Installation
Installing the HIMA F8652X aligns with H41q/H51q system rack installation procedures. First, align the module with the appropriate 8 TE slot in the rack and slide it in until it clicks into place securely. Next, secure the module to the rack using the provided screws to ensure stability.
After physical installation, connect the RS485 cables to the corresponding interfaces on the module. Then, check switch S1 to confirm the bus station number and transmission rate are set correctly. Finally, power on the system and verify the diagnostic display shows normal status.
Post-Installation Check
Once the F8652X is installed, test its operation to ensure normal performance. Check the diagnostic display for any error indications, verify RS485 communication with other modules, and confirm the watchdog function is working properly. If any issues arise, recheck the wiring, battery, and switch settings to resolve them promptly.
Packaging List
1 × HIMA F8652X Safety-Related CPU Module
1 × CR 2477N Lithium Buffer Battery (HIMA part no. 44 0000018)
Protective anti-static packaging
Outer carton for safe transportation
FAQ
Q1: What microprocessors does the HIMA F8652X use? A1: The HIMA F8652X uses two 32-bit Intel 386EX microprocessors, each operating at 25 MHz.
Q2: What is the memory configuration of the F8652X per microprocessor? A2: It has 1 MByte OS Flash-EPROM, 512 kByte user program Flash-EPROM, and 256 kByte data store sRAM per microprocessor.
Q3: What is the space requirement of the HIMA F8652X? A3: It requires 8 TE (Terminal Equipment) of space, fitting standard H41q/H51q system racks.
Q4: How is the HIMA F8652X shipped? A4: We ship the F8652X worldwide via Fedex, UPS, and DHL for fast and secure delivery.
Q5: When should the buffer battery of the F8652X be replaced? A5: It is recommended to replace the buffer battery (type CR 2477N) every 4 years to ensure data integrity.
