The TRICONEX 3515 operates as a dedicated hardware component for safety logic execution within Tricon 3000 Series SIS platforms. The assembly features three independent processing legs that execute application code concurrently, coordinating deterministic control choices directly via a high-speed backplane matrix to drive safety loops.
| Parameter | Specification |
|---|---|
| Model | 3515 |
| Brand | TRICONEX (Schneider Electric) |
| Origin | United States |
| Weight | 0.8kg |
| Dimensions | 177.8 mm x 101.6 mm x 228.6 mm |
| Operating Temp | -20 to +60 deg C |
| Power Consumption | 18 W typical |
| Processor Architecture | Triple Modular Redundancy (TMR) with three independent CPUs |
| Clock Speed | 33 MHz (per CPU) |
| Memory | 16 MB DRAM, 4 MB Flash for program storage |
| Backplane Interface | High-speed TriBus communication with I/O modules |
| Operating Voltage | 5 VDC via backplane |
| Communication Ports | RS-232/RS-485, Ethernet (via communication modules) |
| Diagnostics | Continuous self-test, watchdog timers, LED indicators (PASS, FAIL, ACTIVE) |
| Safety Integrity Level | SIL3 (IEC 61508 / IEC 61511) |
| Storage Temp | -40 to +85 deg C |
| Humidity Range | 5% to 95% non-condensing |
| Certifications | IEC 61508 SIL3, TÜV, CE, UL Class I Div 2, ATEX Zone 2 |
The processing sub-assembly utilizes a triple modular redundancy (TMR) 2oo3 architecture consisting of three isolated hardware legs running parallel safety logic paths. Internal signal verification mechanisms depend on the high-speed TriBus backplane interface to execute continuous cross-leg voting and data synchronization. If a hardware fault occurs within a single CPU core, the remaining two execution legs identify the discrepant state, isolate the failed processing lane, and maintain deterministic fail-safe state execution across the system loop. This continuous hardware voting and isolated topology secure system operation under strict IEC 61508 SIL3 safety parameters.
Q: What are the online hot-swap constraints when extracting this main processor module?
A: The module supports online hot-swap capabilities inside the designated rack allocation. Technicians can replace the unit while the backplane remains energized without stopping the system logic solver execution or causing process interruption on the remaining active modules.
Q: How does the system handle firmware synchronization during a hot-swap operation?
A: Upon insertion of the replacement module, the remaining active processors utilize the TriBus interface to verify firmware flash compatibility and copy the active safety program into the new unit's 16 MB DRAM. Redundancy must be verified via the TriStation interface following physical replacement.
Align and insert the module vertically into the specific slots of the Tricon 3000 Series SIS chassis. Verify full mechanical seating with the backplane pin assembly before engaging the front panel locking mechanisms. Ensure the configuration is deployed using the correct version of TriStation software to maintain compatibility with the 33 MHz processor clock profile. Ground the overall chassis grounding loops directly to a low-impedance master instrument ground bus to minimize electromagnetic interference (EMI). Route all data cables connected to front or side communication ports through dedicated wireways separated from high-current AC power cables.
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