Central CPUs, fail-safe CPUs, racks, and distributed-I/O control roles
Category hub / PLC / CPU
PLC and CPU references - identify, recover, replace
A PLC or CPU reference is only useful when it stays connected to its rack, firmware, safety role, and machine context. This hub starts with the reference itself, then records what is known before a source, repair, exchange, or replacement decision is made.
Catalogue references
537 catalogue references
537 catalogue references.
| Rank | Reference | Manufacturer | Type | System role | Evidence | Status | Action |
|---|---|---|---|---|---|---|---|
| 501 | TSXMFPP384K | Not stated | Not stated | Processes and stores the Premium processor application in non-volatile flash memory. | Individual research | PUBLISHED | Open reference |
| 502 | TSXMRPC001M | Not stated | Not stated | Receives and stores Premium processor application or data memory in SRAM. | Individual research | PUBLISHED | Open reference |
| 503 | TSXMRPC002M | Not stated | Not stated | Receives and stores editable Premium processor application and file data in SRAM. | Individual research | PUBLISHED | Open reference |
| 504 | TSXMRPC003M | Not stated | Not stated | Receives and stores Premium processor application or data contents in SRAM. | Individual research | PUBLISHED | Open reference |
| 505 | TSXMRPC01M7 | Not stated | Not stated | Receives and stores Premium processor application or data contents in SRAM. | Individual research | PUBLISHED | Open reference |
| 506 | TSXMRPC448K | Not stated | Not stated | Receives and stores Premium processor application and file data in configurable SRAM. | Individual research | PUBLISHED | Open reference |
| 507 | TSXMRPC768K | Not stated | Not stated | Receives and stores editable Premium processor application data in SRAM. | Individual research | PUBLISHED | Open reference |
| 508 | TSXMRPP384K | Not stated | Not stated | Receives and stores the Premium processor application in SRAM application memory. | Individual research | PUBLISHED | Open reference |
| 509 | TSXP107425 | Not stated | Not stated | Processes the TSX Series 7 PLC control program for the connected station. | Individual research | PUBLISHED | Open reference |
| 510 | TSXP4720 | Not stated | Not stated | Controls the PLC station by executing the application logic for a TSX 47-20 PLC station. | Individual research | PUBLISHED | Open reference |
| 511 | TSXP57104M | Not stated | Not stated | Controls the PLC station by executing the Unity application program for a Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 512 | TSXP57203M | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 513 | TSXP57204M | Not stated | Not stated | Controls the PLC station by executing the Unity application program for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 514 | TSXP57252M | Not stated | Not stated | Controls the PLC station by executing the control application for a TSX Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 515 | TSXP572623M | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 516 | TSXP572634M | Not stated | Not stated | Controls the PLC station by executing the Unity application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 517 | TSXP572823M | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 518 | TSXP57303AM | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 519 | TSXP57353AM | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 520 | TSXP573623AM | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 521 | TSXP573634M | Not stated | Not stated | Controls the PLC station by executing the Unity application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 522 | TSXP57453AM | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 523 | TSXP57453M | Not stated | Not stated | Controls the PLC station by executing the PL7 application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 524 | TSXP575634M | Not stated | Not stated | Controls the PLC station by executing the Unity application logic for the Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 525 | TSXP6720 | Not stated | Not stated | Controls the PLC station by executing the control application for a TSX Series 7 PLC station. | Individual research | PUBLISHED | Open reference |
| 526 | TSXP67455 | Not stated | Not stated | Controls the PLC station by executing the control application for a TSX Series 7 PLC station. | Individual research | PUBLISHED | Open reference |
| 527 | TSXP8730 | Not stated | Not stated | Controls the PLC station by executing the control application for the TSX Series 7 PLC station. | Individual research | PUBLISHED | Open reference |
| 528 | TSXPAY282 | Not stated | Not stated | Monitors safety inputs and switches the documented safety relay outputs. | Individual research | PUBLISHED | Open reference |
| 529 | TSXPBY100 | Not stated | Not stated | Routes PROFIBUS DP master communication between a Premium PLC and connected field devices. | Individual research | PUBLISHED | Open reference |
| 530 | TSXPSY5520 | Not stated | Not stated | Supplies isolated DC power to the Premium PLC rack. | Individual research | PUBLISHED | Open reference |
| 531 | TSXPSY8500M | Not stated | Not stated | Supplies the low-voltage rail for a Modicon Premium PLC station. | Individual research | PUBLISHED | Open reference |
| 532 | TSXSUP702 | Not stated | Not stated | Supplies operating power for a Telemecanique TSX PLC rack. | Individual research | PUBLISHED | Open reference |
| 533 | TWDLCAA24DRF | Not stated | Not stated | Controls discrete machine signals as the compact Twido PLC base controller. | Individual research | PUBLISHED | Open reference |
| 534 | TWDLMDA40DTK | Not stated | Not stated | Controls discrete automation logic in a Twido control station. | Individual research | PUBLISHED | Open reference |
| 535 | V18345-1010521001 | Not stated | Not stated | Controls pneumatic valve position from the documented 4 to 20 mA command. | Individual research | PUBLISHED | Open reference |
| 536 | WLETU748 | Not stated | Not stated | Protects a WL circuit breaker by monitoring current and initiating configured trip action. | Individual research | PUBLISHED | Open reference |
| 537 | XUVF60M8 | Not stated | Not stated | Installed around the object path, this photoelectric frame sensor detects an object passing through its sensing field and sends the configured NPN/PNP switching output to the downstream machine controller. It accepts 12-24 VDC power and provides the controller with a fast passage-detection signal; application-specific logic and wiring remain installation dependent. | Individual research | PUBLISHED | Open reference |
What this category covers
Reference identity, successor checks, firmware and network context
Evidence needed before repair, exchange, or a compatible replacement
Integration status: 16 catalogue identities integrated; identity pages are indexable and optional evidence is omitted when unavailable
Choose a recovery path
Editorial queue
9 draft / 1 published
Published guides passed the shared evidence evaluator. Draft entries remain noindex until their body, sources, review window, provenance, and category path pass the same gates.
| Intent | Question | Summary | Source notes | Integration | Preview |
|---|---|---|---|---|---|
| How to identify a PLC CPU from its nameplate | Which nameplate fields prove a PLC CPU identity? | A practical intake sequence for the reference, revision, family, and visible condition. | docs/data/v1-guide-publication-review.md; Siemens SIMATIC S7-1200 system manual V4.5: https://cache.industry.siemens.com/dl/files/241/109797241/att_1066673/v1/s71200_system_manual_en-US_en-US.pdf; Siemens 6ES7214-1AG40-0XB0 product data: https://mall.industry.siemens.com/goos/catalog/Pages/mmpdata.ashx?MLFB1=6ES7214-1AG40-0XB0&lang=en; Siemens 6ES7214-1BG40-0XB0 product data: https://mall.industry.siemens.com/goos/catalog/Pages/mmpdata.ashx?MLFB1=6ES7214-1BG40-0XB0&lang=en | PUBLISHED - INDEXABLE | Open published guide |
| PLC CPU or I/O module: what is the difference? | How can a technician tell the controller from an I/O module? | Explain the control role and the evidence that separates a CPU from its connected modules. | docs/data/data-model.md; Manufacturer documentation required before publication | DRAFT - NOT INDEXABLE | Open draft |
| What to record before recovering a fail-safe PLC CPU | What safety and configuration evidence is needed before recovery? | Define a safe intake boundary for a fail-safe controller without promising compatibility. | docs/product/comparison-and-recovery-model.md; Qualified technical evidence required | DRAFT - NOT INDEXABLE | Open draft |
| How to check a PLC CPU successor reference | What must be compared before accepting a successor? | A comparison checklist for hardware, firmware, safety, wiring, and project constraints. | docs/data/data-model.md; Manufacturer documentation required before publication | DRAFT - NOT INDEXABLE | Open draft |
| Why network context matters for a PLC CPU | Which network details affect a CPU replacement? | Show why a part number alone cannot confirm a drop-in replacement in a control network. | docs/product/comparison-and-recovery-model.md; Qualified technical evidence required | DRAFT - NOT INDEXABLE | Open draft |
| Planning around an obsolete PLC CPU | What should be documented when a PLC CPU is obsolete? | Separate evidence gathering, machine risk, sourcing, and migration decisions. | docs/data/data-management.md; Current manufacturer status required | DRAFT - NOT INDEXABLE | Open draft |
| PLC repair or replacement: which evidence helps? | When is repair evidence more useful than a replacement quote? | Frame the recovery decision around symptoms, downtime, configuration, and available evidence. | docs/product/comparison-and-recovery-model.md; Repair capability evidence required | DRAFT - NOT INDEXABLE | Open draft |
| A control-cabinet checklist for PLC identification | What should be photographed during a PLC cabinet audit? | List the cabinet and machine context that makes a reference request actionable. | /how-it-works/#request-checklist; Technical evidence required | DRAFT - NOT INDEXABLE | Open draft |
| PLC reference aliases and formatting | Why do the same PLC references appear in different formats? | Document normalization without treating an alias as proof of product identity. | docs/data/data-model.md; Source evidence required | DRAFT - NOT INDEXABLE | Open draft |
| What evidence to send with a PLC request | Which files and photos make a PLC request useful? | A short evidence pack for reference, symptom, machine, and desired recovery route. | /how-it-works/#request-checklist; Ardkor intake policy | DRAFT - NOT INDEXABLE | Open draft |
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Send the exact reference, photos, symptom, and machine context. The category stays useful while each product and article is reviewed separately.
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