F 8650 | HIMA F8650 Central Module Use in The PES H51q-MS, HS, HRS

Overview

The HIMA F 8650 is a central module designed for use in the PES H51q-MS, HS, and HRS systems, suitable for safety-related requirement classes AK 1 to AK 6. This module features two clock-synchronized microprocessors, providing robust and reliable performance for critical safety applications.

Technical Specifications

Microprocessors

• Type: INTEL 386EX, 32 bits
• Quantity: 2 (clock-synchronized)
• Clock Frequency: 25 MHz

Memory per Microprocessor

• Operating System: Flash-EPROM, 1 MByte (5 ICs each)
• User Program: Flash-EPROM, 512 kByte
• Data Storage: sRAM, 256 kByte

Interfaces

• Serial Interfaces: 2 x RS 485

Diagnostic Display

• Type: 4-digit alphanumeric display with requestable information
• Error Display: 2 LEDs for common error indication (CPU and IO modules)
• Buttons:
  • Two switch-over pushbuttons for detailed information (marked with <>)
  • ACK button to reset error indications (acts like system switch-on in failure stop)

Safety Features

• Error Switch Off: Fail-safe watchdog with output
• Output Voltage: 24 V DC, loadable up to 500 mA, short-circuit proof

Construction

• PCBs: 2 in European standard, 1 for diagnostic display circuits
• Space Requirements: 8 TE (modules)

Operating Data

• Power Supply: 5 V DC, 2000 mA

Pin Allocation for RS 485 Interface Channels

• Pin 1: Not used
• Pin 2: RP (5 V, decoupled by diodes)
• Pin 3: A/A (RxD/TxD-A, Receive/Transmit-Data-A)
• Pin 4: CNTR-A (Control signal A)
• Pin 5: C/C (DGND, Data Ground)
• Pin 6: VP (5 V, positive pole of power supply)
• Pin 7: Not used
• Pin 8: B/B (RxD/TxD-B, Receive/Transmit-Data-B)
• Pin 9: CNTR-B (Control signal B)

Diagnostic Display

• Display: 4-digit alphanumeric
• LEDs: 2 for error indication (CPU and IO modules)
• Buttons:
  • Two for information request (marked with <>)
  • ACK button to reset error indication

Start-Up and Maintenance

Buffer Battery Lifetime

• Without Voltage Feeding:
  • 2500 days at 25°C
  • 100 days at 60°C
• Recommendation: Change the buffer battery every 4 years
• Battery Type: Lithium, e.g., CR 2477N
• HIMA Part Number: 44 0000018

Bus Station Number and Transmission Rate Settings

• Switch S1: Used for setting station number and transmission rate
• Station Number Settings:
  • Switches S1-1 to S1-5
• Transmission Rate Setting:
  • Switch S1-8