Overview
Hardware Specifications
| Parameter | Specification |
|---|---|
| Model | F 8650X |
| Base Model Reference | F8650 |
| Brand | HIMA |
| Product Type | Central Processor Module |
| Compatible System Platforms | H51q-MS, H51q-HS, H51q-HRS |
| Safety Rating | Up to SIL 3 according to IEC 61508 |
| Microprocessor | Intel 386EX, 32-bit |
| Clock Frequency | 25 MHz |
| Operating System Memory | 1 MB Flash EPROM |
| User Program Memory | 1 MB Flash EPROM |
| Data Memory | 1 MB SRAM |
| Serial Interfaces | 2 x electrically isolated RS-485 |
| Fault Shutdown | Safety-related watchdog |
| Space Requirement | 8 SU |
| Operating Supply | 5 V / 2 A |
| Estimated Shipping Dimensions | 4 x 18.6 x 12.8 cm |
| Weight | 0.3 kg |
Memory utilization depends on the operating system version.
Processor and Memory Architecture
The F 8650X uses a 32-bit Intel 386EX processor clocked at 25 MHz to execute the safety control program. Its memory architecture separates the operating system, user application, and runtime data into dedicated Flash EPROM and SRAM areas. The usable capacity of each memory area depends on the installed operating system version.
Safety Monitoring and Diagnostics
The module includes a safety-related watchdog with a 24 V output rated for loads up to 500 mA. The output is short-circuit protected and supports the documented fault-shutdown function. In addition, the four-digit matrix display provides selectable diagnostic information to assist with status identification and fault investigation.
Serial Communication and Ethernet Networking
The F 8650X provides two electrically isolated RS-485 serial interfaces. For serial communication, the bus station number can be set from 1 to 31. In an Ethernet network, station numbers from 1 to 99 are supported when the specified configuration conditions are met.
The extended station-number setting requires operating system BS41q/51q V7.0-8 (05.31) or later as identified in the supplied documentation. Switches S1-6 and S1-7 must be configured in addition to S1-1 through S1-5. Despite the extended address range, the number of communication partners within one network remains limited to 64.
Communication Module F 8627X
When paired with the F 8627X communication module, the central module supports the documented Ethernet communication arrangements. These include connections to a programming and debugging tool (PADT) through ELOP II TCP and communication with other network partners using safeethernet or Modbus TCP.
Communication data travels between the central module and the F 8627X through the backplane bus. The F 8627X then transfers the data through its Ethernet ports to the network and returns incoming data through the same path. The documented self-education and ELOP II TCP features are available from operating system BS41q/51q V7.0-8 (05.31).
Frequently Asked Questions
Q: Which HIMA systems use the F 8650X?
A: The supplied specifications identify the H51q-MS, H51q-HS, and H51q-HRS PES platforms. Confirm the installed system configuration and operating system before selecting a replacement module.
Q: What communication options are available with the F 8650X?
A: The module provides two electrically isolated RS-485 serial interfaces. Ethernet communication, including safeethernet and Modbus TCP, is documented for configurations using the F 8627X communication module.
Q: What should be checked when replacing an F 8650X?
A: Verify the complete model designation, PES platform, operating system version, memory requirements, station-number switch settings, and any required F 8627X communication configuration. The supplied information does not establish a direct replacement model or confirm hot-swapping support.
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