Description
- Model: F8651X (also written as F 8651 X)
- Brand: HIMA
- Series: HIMAX (The high-performance safety system)
- Core Function: Central Processing Unit (CPU) / Central Module
- Product Type: Safety Controller / Processor
- Key Specs: Multi-processor architecture | Integrated Ethernet interface | SIL 3 Certified
- Microprocessor: 32-bit RISC architecture for high-speed safety task execution.
- Safety Integrity Level: Certified up to SIL 3 (IEC 61508) and PLe (ISO 13849).
- Communication Interfaces:
- 2 x Ethernet ports (RJ45) for system networking and safeethernet.
- 2 x Serial interfaces (RS485) for Modbus or terminal connection.
- Memory: High-capacity non-volatile Flash memory for user programs and event logging.
- Diagnostics: Comprehensive self-test routines and integrated system bus monitoring.
- Response Time: Extremely low processing cycle times for high-speed shutdown requirements.
- Redundancy Support: Designed for non-redundant, redundant, or even quad-redundant configurations.
- Operating Temperature: 0 to +60°C.
- Programming Software: SILworX (Version compatibility check required).
HIMA F8651X
Installation & Configuration Guide
Stage 1: Pre-Installation
⚠️ Safety First:
- Safety System Warning: This module is the “brain” of a Safety Instrumented System (SIS). Any replacement must be performed by certified functional safety personnel.
- System State: Ensure the process is in a safe state. Replacing a central module in a non-redundant system will result in an immediate system shutdown.
- ESD Protection: Use an anti-static wrist strap. The F8651X contains highly integrated circuits that can be damaged by invisible static discharge.
Required Tools:
- SILworX Engineering Tool (installed on a laptop)
- RJ45 Ethernet crossover or straight cable
- Screwdriver (small flat-head for terminal locking)
Stage 2: Removal
Steps:
- Backup Configuration: Connect your laptop and perform a full “Upload” of the project and the current hardware parameters from the running system.
- Identify the Slot: In a HIMAX rack, the central modules are typically located in the first designated slots.
- Unlock: Release the module locking mechanism (lever or screws depending on the rack type).
- Extraction: Pull the module straight out of the rack. Avoid touching the gold backplane connectors.
Stage 3: Installation
Steps:
- Hardware Addressing: Check the mechanical coding or DIP switches on the back of the module (if applicable) to ensure they match the slot configuration.
- Insertion: Slide the F8651X into the rack guides until it is firmly seated in the backplane.
- Locking: Engage the locking levers. This ensures a consistent electrical connection and prevents vibration-induced faults.
Stage 4: Commissioning & Download
Validation:
- Initial Boot: On power-up, the module will perform a self-test. The LEDs will cycle through a boot sequence.
- Project Transfer: Use SILworX to download the verified safety project to the new module.
- Status Check:
- RUN LED: Should be steady Green.
- STOP/FAULT LED: Should be Off.
- Communication Link: Verify that the CPU is communicating with the I/O modules and the HMI/SCADA system.
HIMA F8651X
Customer Cases & Industry Applications
Case 1: Petrochemical Refinery ESD Upgrade
Situation: A refinery was experiencing “Nuisance Trips” caused by a hardware failure in an aging HIMAX processor. The downtime was costing the facility over $200,000 per day.
Task: Find a New Surplus F8651X to restore system reliability without the long lead times associated with ordering a new unit from the manufacturer.
Action: We provided a New Surplus F8651X within 48 hours. We assisted the plant’s automation engineer in verifying that the firmware revision was compatible with their existing SILworX project version.
Result: The module was installed and the system was re-commissioned during a weekend window. The refinery reported zero nuisance trips in the following six months.
Case 2: Offshore Gas Platform Redundancy Restore
Situation: An offshore platform was running on a degraded safety system because one of the redundant F8651X modules had failed. While the system was still running, it was no longer fault-tolerant.
Task: Restore redundancy before the next safety audit.
Action: The customer ordered a replacement from our stock. Because HIMAX supports hot-swapping for redundant CPUs, they were able to replace the module while the platform was still in production.
Result: The new module automatically synchronized with the active CPU. Redundancy was restored seamlessly, and the platform passed its safety audit with no findings.
HIMA F8651X
Frequently Asked Questions (FAQ)
Q: Is the F8651X hot-swappable? A: Yes, in a redundant HIMAX configuration, the F8651X is designed for hot-swapping. However, in a non-redundant (single) system, pulling the module will stop all safety logic execution and likely trigger a process shutdown.
Q: Do I need to update my SILworX software for this module? A: Not necessarily. The F8651X is compatible with various versions of SILworX. However, you must ensure that the “Firmware Version” loaded on the hardware is compatible with the “Library Version” used in your project. We can provide the firmware version of our units upon request.
Q: What is the difference between the F8651 and the F8650? A: The F8651X is generally an upgraded or higher-capacity version of the previous central modules, offering better processing speed and more communication options. Always consult your HIMAX hardware manual to ensure your rack supports the F8651X.
Q: Is “New Surplus” reliable for safety applications? A: Absolutely. Our New Surplus units are original HIMA parts that have never been used in a plant environment. They are physically “New” but come from excess project inventory. This is often the only way to source legacy HIMA parts for older systems that are still in operation.
Featured Inventory List (Current Stock)
- HIMA F8627 Communication Module
- HIMA F8650X Central Module
- ABB PM866 Controller
- Bently Nevada 3500/22M
- TRICONEX 3503E
- GE IS215UCVEH2AE
- Honeywell CC-PAIH01
- Siemens 6ES7 417-4XT07-0AB0
For more details on these parts, visit our catalog at newplcdcs.
