HIMA F3316 PLC Module

The HIMA F3316, also cataloged as the F3316 PLC Module, operates as a dedicated hardware component for safety-related logical execution within HIMA programmable electronic platforms.

Hardware Specifications

Safety Integrity & Fail-Safe Architecture

• SIL3 Certification Framework: The integrated dual-CPU architecture executes parallel cross-checked diagnostics, ensuring continuous logic verification against hardware fault vectors.
• Fail-Safe State Execution: If an operating system exception or bus conflict is flagged by the dual-CPU logic, the module initiates a forced isolation sequence, dropping all 0.5 A digital output points to a de-energized fail-safe open state.
• Galvanic Isolation: Internal processing buses, including the 4 MB flash and 1 MB SRAM storage paths, are electrically isolated from the field termination points to block voltage surges on the 24 VDC lines.
• Triple Modular Redundancy (TMR) Compatibility: The module structures diagnostic telegrams across its RS-485, CAN bus, and Ethernet interfaces to support integration within high-availability system configurations.

Frequently Asked Questions

Q: How does the dual-CPU architecture handle a single processor fault?

A: The dual-CPU architecture utilizes continuous dynamic hardware comparison. If an asymmetric computational error or memory corruption occurs in one processor, the subsystem locks the module outputs into a pre-defined fail-safe state to prevent unsafe control execution.

Q: Can the internal SRAM memory be retained during a total 24 VDC main power failure?

A: The 1 MB SRAM handles transient runtime operational values. For permanent retention of safety programs, the system commits configuration data directly to the non-volatile 4 MB flash memory, ensuring complete application safety status preservation during total power outages.

Field Installation Guidelines

Ensure the primary 24 VDC power source is fully isolated and verified down to 0 VDC before inserting or extracting the module to avoid contact damage on the backplane terminals. Mount the hardware inside an enclosure providing at least an IP54 protection level to supplement the unit's native IP20 rating against particulate contaminants. Maintain appropriate physical spacing around the 100 mm x 50 mm x 20 mm form factor to facilitate convective cooling, keeping ambient temperatures strictly within the specified -25 to 70 deg C limits. All RS-485, CAN bus, and Ethernet communication lines must deploy high-density shielded twisted-pair media, with the shield grounded at the central cabinet point.