{"product_id":"ic697cpu788-ge-automation-triple-modular-redundancy-cpu-controller","title":"IC697CPU788 GE Automation Triple Modular Redundancy CPU Controller","description":"\u003ch3\u003eEngineering Overview: High-Availability TMR Processing\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #8e44ad;\"\u003eIC697CPU788\u003c\/span\u003e\u003c\/strong\u003e is a specialized, single-slot Central Processing Unit designed for \u003cstrong\u003eTriple Modular Redundancy (TMR)\u003c\/strong\u003e architectures within the \u003cstrong\u003eGE Fanuc \u003ca href=\"https:\/\/www.plcsparehub.com\/collections\/ge-series-90-30-series-90-70\"\u003eSeries 90-70\u003c\/a\u003e\u003c\/strong\u003e PLC ecosystem. Powered by an 80386DX microprocessor running at 16 MHz, this module is the industrial standard for safety-critical operations. It excels in environments where hardware-level fault tolerance is mandatory, such as Emergency Shut-Down (ESD), fire suppression, and combustible gas monitoring systems.\u003c\/p\u003e\n\u003ch3\u003eTechnical Specification Matrix\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e IC697CPU788 (TMR CPU Module)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProcessor:\u003c\/strong\u003e 80386DX @ 16 MHz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRedundancy:\u003c\/strong\u003e Triple Modular Redundancy (TMR)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory:\u003c\/strong\u003e Supports 512 KB Expansion CMOS RAM\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBoolean Speed:\u003c\/strong\u003e 0.4 microseconds\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eGlobal PLC Spare HUB’s Insight\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e\u003cspan style=\"color: #8e44ad;\"\u003eIC697CPU788\u003c\/span\u003e\u003c\/strong\u003e is not a \"plug-and-play\" CPU; it demands rigorous configuration. A critical insight for our clients is that this module remains in a non-functional state until the specific TMR-enabling program blocks are compiled and loaded. In our testing, we have found that improper lithium battery management is the leading cause of \"phantom\" memory errors. We advise proactive replacement of the backup battery every 6 months if the module is frequently unpowered to ensure the CMOS RAM retains its critical safety logic.\u003c\/p\u003e\n\u003ch3\u003eIndustrial Applications, Diagnostics \u0026amp; Logistics\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuitable Equipment:\u003c\/strong\u003e Critical ESD (Emergency Shut-Down) systems, gas detection arrays, refinery safety controllers, and fire protection logic.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDiagnostic Capability:\u003c\/strong\u003e Four integrated status LEDs provide real-time hardware health reporting. The 3-position RUN\/STOP switch, when locked, provides an hardware-level barrier against unauthorized modification of safety logic via the parallel port.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 12-month professional quality assurance guarantee.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipping:\u003c\/strong\u003e Expedited global transit via FedEx, UPS, or DHL; 24–48 hour dispatch.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eExpert Frequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhy is TMR (Triple Modular Redundancy) essential for gas and fire applications?\u003c\/strong\u003e\u003cbr\u003eTMR uses three parallel processors to execute the same logic; a \"voting\" circuit compares the outputs. If one processor fails, the system ignores the minority result and maintains control, preventing a false shutdown or a failure to detect a hazard.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I use this module without an expansion memory board?\u003c\/strong\u003e\u003cbr\u003eNo. The base module architecture requires the attachment of the 512 KB expansion CMOS RAM board to house the complex TMR program blocks and historical data logs necessary for safe operation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 0.4 microsecond Boolean speed mean for my loop timing?\u003c\/strong\u003e\u003cbr\u003eThis indicates an extremely low scan-time overhead, allowing the PLC to react to emergency inputs (like a pressure spike or flame detection) within fractions of a millisecond, significantly increasing the \"Mean Time to Safety.\"\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow do I ensure the memory retention is optimal during storage?\u003c\/strong\u003e\u003cbr\u003eThe lithium battery is rated for 10 years at 20°C. If you are storing this spare in a high-temperature warehouse, expect the 6-month memory retention window to shrink significantly. Always keep spares in climate-controlled areas.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIf the 3-position switch is in the \"Protected\" position, can I still monitor the CPU?\u003c\/strong\u003e\u003cbr\u003eYes. You can monitor registers and logic status via the parallel port, but the CPU prevents any \"write\" commands or logic modifications, protecting your safety logic from accidental field overrides.\u003c\/p\u003e","brand":"GE Fanuc","offers":[{"title":"Default Title","offer_id":45014014787766,"sku":"IC697CPU788","price":156.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0722\/7863\/8774\/files\/IC697CPU788.jpg?v=1779875246","url":"https:\/\/www.plcsparehub.com\/products\/ic697cpu788-ge-automation-triple-modular-redundancy-cpu-controller","provider":"Global PLC Spare Hub","version":"1.0","type":"link"}