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 |
|---|---|---|---|---|---|---|---|
| 251 | 6ES7232-0HB22-0XA0 | Not stated | Not stated | Converts two CPU output values into +/-10 V DC analog signals for downstream actuators or other analog devices. | Individual research | PUBLISHED | Open reference |
| 252 | 6ES7232-4HA30-0XB0 | Not stated | Not stated | Converts an S7-1200 program value into one voltage or current output signal for a downstream analog device. | Individual research | PUBLISHED | Open reference |
| 253 | 6ES7238-5XA32-0XB0 | Not stated | Not stated | Measures voltage, current, phase angle, power, energy values and frequency and makes those electrical measurements available to the S7-1200 CPU. | Individual research | PUBLISHED | Open reference |
| 254 | 6ES7241-1AH32-0XB0 | Not stated | Not stated | Transmits and receives serial data between the S7-1200 CPU program and an external RS232 device through the CM 1241 interface. | Individual research | PUBLISHED | Open reference |
| 255 | 6ES7241-1CH32-0XB0 | Not stated | Not stated | Transmits and receives serial data between the S7-1200 CPU program and an external RS422 or RS485 device through the CM 1241 interface. | Individual research | PUBLISHED | Open reference |
| 256 | 6ES7278-4BD32-0XB0 | Not stated | Not stated | Connects up to four IO-Link devices to an S7-1200 controller and exposes their process and parameter data to the control program. | Individual research | PUBLISHED | Open reference |
| 257 | 6ES7313-6CG04-0AB0 | Not stated | Not stated | Executes the S7-300 control program, processes its integrated digital I/O and exchanges distributed data through the integrated PROFIBUS DP interface. | Individual research | PUBLISHED | Open reference |
| 258 | 6ES7314-1AE04-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges process data with installed I/O while providing MPI engineering and operator communication. | Individual research | PUBLISHED | Open reference |
| 259 | 6ES7314-5AE03-0AB0 | Not stated | Not stated | Executes the S7-300 control program while its integrated I/O exchanges machine signals and the MPI interface links engineering or operator communication. | Individual research | PUBLISHED | Open reference |
| 260 | 6ES7314-5AE10-0AB0 | Not stated | Not stated | Executes the S7-300 control program while its integrated I/O exchanges machine signals and the MPI interface links engineering or operator communication. | Individual research | PUBLISHED | Open reference |
| 261 | 6ES7314-6BG03-0AB0 | Not stated | Not stated | Executes the S7-300 control program, processes integrated I/O and exchanges point-to-point serial data through its integrated RS485 interface. | Individual research | PUBLISHED | Open reference |
| 262 | 6ES7315-1AF02-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges process data with installed signal modules through the rack backplane. | Individual research | PUBLISHED | Open reference |
| 263 | 6ES7315-2AF03-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges distributed I/O data through its MPI/DP and second PROFIBUS DP interfaces. | Individual research | PUBLISHED | Open reference |
| 264 | 6ES7315-2AG10-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges distributed I/O data over MPI and PROFIBUS DP. | Individual research | PUBLISHED | Open reference |
| 265 | 6ES7315-2FJ14-0AB0 | Not stated | Not stated | Executes standard and safety control programs and exchanges safety or standard process data through PROFIBUS DP and PROFINET. | Individual research | PUBLISHED | Open reference |
| 266 | 6ES7317-2AJ10-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges distributed I/O data through its two PROFIBUS-capable interfaces. | Individual research | PUBLISHED | Open reference |
| 267 | 6ES7317-2AK14-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges distributed I/O data through its two PROFIBUS-capable interfaces. | Individual research | PUBLISHED | Open reference |
| 268 | 6ES7317-2EK13-0AB0 | Not stated | Not stated | Executes the S7-300 control program and exchanges process data through MPI/PROFIBUS DP and Ethernet PROFINET networks. | Individual research | PUBLISHED | Open reference |
| 269 | 6ES7317-2FK14-0AB0 | Not stated | Not stated | Processes safety and standard application logic and communicates with distributed S7-300 field I/O through MPI/DP and PROFINET. | Individual research | PUBLISHED | Open reference |
| 270 | 6ES7317-6FF04-0AB0 | Not stated | Not stated | Processes safety and standard application logic and exchanges I/O data over MPI/DP and PROFIBUS DP. | Individual research | PUBLISHED | Open reference |
| 271 | 6ES7317-6TJ10-0AB0 | Not stated | Not stated | Controls PLC and technology applications and exchanges motion-related data through its MPI/DP and DP drive interfaces. | Individual research | PUBLISHED | Open reference |
| 272 | 6ES7318-2AJ00-0AB0 | Not stated | Not stated | Processes S7-300 control logic and communicates with MPI and PROFIBUS-DP devices. | Individual research | PUBLISHED | Open reference |
| 273 | 6ES7318-3EL00-0AB0 | Not stated | Not stated | Processes S7-300 control logic and exchanges data with distributed I/O through MPI/DP, DP and PROFINET. | Individual research | PUBLISHED | Open reference |
| 274 | 6ES7318-3FL00-0AB0 | Not stated | Not stated | Processes safety and standard application logic and exchanges distributed I/O data through MPI/DP, DP and PROFINET. | Individual research | PUBLISHED | Open reference |
| 275 | 6ES7318-3FL01-0AB0 | Not stated | Not stated | Processes safety and standard application logic and exchanges distributed I/O data through MPI/DP, DP and PROFINET. | Individual research | PUBLISHED | Open reference |
| 276 | 6ES7326-2BF01-0AB0 | Not stated | Not stated | Switches fail-safe 24 V DC actuator loads for SIMATIC S7F systems and reports diagnostic conditions. | Individual research | PUBLISHED | Open reference |
| 277 | 6ES7331-7PE10-0AB0 | Not stated | Not stated | Receives thermocouple and low-level voltage signals for temperature acquisition in an S7-300 or distributed I/O station station. | Individual research | PUBLISHED | Open reference |
| 278 | 6ES7331-7PF11-0AB0 | Not stated | Not stated | Receives thermocouple signals and converts them into PLC analog input values. | Individual research | PUBLISHED | Open reference |
| 279 | 6ES7332-5HD01-0AB0 | Not stated | Not stated | Converts PLC setpoints into isolated voltage or current signals for actuators and process devices. | Individual research | PUBLISHED | Open reference |
| 280 | 6ES7332-5HF00-0AB0 | Not stated | Not stated | Converts PLC setpoints into isolated voltage or current signals for actuators and process devices. | Individual research | PUBLISHED | Open reference |
| 281 | 6ES7335-7HG02-0AB0 | Not stated | Not stated | Processes high-speed analog input and output values for S7-300 control applications. | Individual research | PUBLISHED | Open reference |
| 282 | 6ES7336-4GE00-0AB0 | Not stated | Not stated | Receives 0/4-20 mA HART process signals for fail-safe analog value acquisition. | Individual research | PUBLISHED | Open reference |
| 283 | 6ES7341-1AH02-0AE0 | Not stated | Not stated | Routes serial RS-232C data between an S7-300 CPU and external devices using supported protocols. | Individual research | PUBLISHED | Open reference |
| 284 | 6ES7354-1AH01-0AE0 | Not stated | Not stated | Controls a single-axis positioning loop by transmitting a +/-10 V drive setpoint and receiving drive-ready status. | Individual research | PUBLISHED | Open reference |
| 285 | 6ES7400-1TA01-0AA0 | Not stated | Not stated | Routes S7-400 backplane communication and P-bus connections while housing controller and I/O modules. | Individual research | PUBLISHED | Open reference |
| 286 | 6ES7403-1JA00-0AA0 | Not stated | Not stated | Routes expansion-rack module connections across the restricted I/O bus. | Individual research | PUBLISHED | Open reference |
| 287 | 6ES7405-0DA00-0AA0 | Not stated | Not stated | Supplies regulated DC power for the S7-400 backplane and connected module electronics. | Individual research | PUBLISHED | Open reference |
| 288 | 6ES7405-0KA01-0AA0 | Not stated | Not stated | Supplies 5 V DC and 24 V DC secondary power to S7-400 modules from the DC network. | Individual research | PUBLISHED | Open reference |
| 289 | 6ES7405-0KA02-0AA0 | Not stated | Not stated | The PS405 supplies the S7-400 rack with its documented DC operating voltages. | Individual research | PUBLISHED | Open reference |
| 290 | 6ES7412-2XG00-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 291 | 6ES7414-2XG02-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 292 | 6ES7414-2XG03-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 293 | 6ES7414-2XG04-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 294 | 6ES7414-2XJ00-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 295 | 6ES7414-2XJ01-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the documented the documented distributed-I/O system automation context. | Individual research | PUBLISHED | Open reference |
| 296 | 6ES7414-3XJ00-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 297 | 6ES7414-3XM05-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 298 | 6ES7414-4HJ04-0AB0 | Not stated | Not stated | The CPU processes the configured control program for a redundant S7-400H automation system. | Individual research | PUBLISHED | Open reference |
| 299 | 6ES7416-2XK02-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | Individual research | PUBLISHED | Open reference |
| 300 | 6ES7416-2XK04-0AB0 | Not stated | Not stated | The CPU processes the configured S7 control program for the S7-400 automation system. | 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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