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 |
|---|---|---|---|---|---|---|---|
| 101 | 6DD1683-0BC0 | Not stated | Not stated | Supplies SIMADYN D control-system power from the documented 24 V DC input. | Individual research | PUBLISHED | Open reference |
| 102 | 6DD1683-0BE5 | Not stated | Not stated | Supplies SIMADYN D system power from the documented 24 V DC input and listed rails. | Individual research | PUBLISHED | Open reference |
| 103 | 6DD1683-0CH1 | Not stated | Not stated | Supplies SIMATIC TDC control hardware with the documented fan-cooled power function. | Individual research | PUBLISHED | Open reference |
| 104 | 6DD1684-0CH0 | Not stated | Not stated | Routes the documented RS485 connection between a SIMADYN D bus interface module and partner interface. | Individual research | PUBLISHED | Open reference |
| 105 | 6DD1684-0EF0 | Not stated | Not stated | Routes the documented SIMADYN D peripheral-module ribbon signal path. | Individual research | PUBLISHED | Open reference |
| 106 | 6DD3460-0AC0 | Not stated | Not stated | Processes pulse-sensor signals for a SIMADYN D system. | Individual research | PUBLISHED | Open reference |
| 107 | 6DL1135-6UD00-0PK0 | Not stated | Not stated | Isolates and processes four current outputs with HART communication in a distributed I/O station. | Individual research | PUBLISHED | Open reference |
| 108 | 6DL4320-0AA00 | Not stated | Not stated | Monitors vibration inputs for a VIB3000 system and provides a buffered output. | Individual research | PUBLISHED | Open reference |
| 109 | 6DL5101-8AX00-0XB0 | Not stated | Not stated | Processes SINAUT telecontrol data on one licensed OS Single Station or OS Server installation. | Individual research | PUBLISHED | Open reference |
| 110 | 6DP8800-8AA00 | Not stated | Not stated | Routes the documented cable link between IM64 endpoints. | Individual research | PUBLISHED | Open reference |
| 111 | 6DR1900-5 | Not stated | Not stated | Regulates a process using the SIPART DR19 basic unit and its documented analog and digital I/O. | Individual research | PUBLISHED | Open reference |
| 112 | 6DR2004-1A | Not stated | Not stated | Regulates a process using the SIPART DR20 unit's documented analog and digital I/O. | Individual research | PUBLISHED | Open reference |
| 113 | 6DR4004-6J | Not stated | Not stated | Transmits two-wire 4-20 mA position feedback from an Ex positioner. | Individual research | PUBLISHED | Open reference |
| 114 | 6DR5010-0EN00-0AA0 | Not stated | Not stated | Regulates a pneumatic actuator from a 4-20 mA command through the SIPART PS2 positioner. | Individual research | PUBLISHED | Open reference |
| 115 | 6DR5010-0NN00-0AA0 | Not stated | Not stated | Regulates a pneumatic actuator from a 4-20 mA command through the SIPART PS2 positioner. | Individual research | PUBLISHED | Open reference |
| 116 | 6DR5110-0NN0-0AA0 | Not stated | Not stated | Transmits and regulates a two-wire 4-20 mA HART positioner signal. | Individual research | PUBLISHED | Open reference |
| 117 | 6DR5210-0EN01-0AA0 | Not stated | Not stated | Regulates a single-acting pneumatic actuator from the documented 4-20 mA/HART control loop. | Individual research | PUBLISHED | Open reference |
| 118 | 6DR5220-0EG01-0AA0 | Not stated | Not stated | Regulates a double-acting pneumatic actuator from a 4-20 mA/HART command and provides the documented analog position-feedback path. | Individual research | PUBLISHED | Open reference |
| 119 | 6DR5510-0EG00-0AA0 | Not stated | Not stated | Converts PROFIBUS PA position commands into pneumatic control of a single-acting actuator. | Individual research | PUBLISHED | Open reference |
| 120 | 6DS1602-8BA | Not stated | Not stated | Receives 32 binary field signals and makes their states available to the TELEPERM M control system. | Individual research | PUBLISHED | Open reference |
| 121 | 6DS1701-8AB | Not stated | Not stated | Acquires eight analog process signals from the field and transfers their measured values into the TELEPERM M control system. | Individual research | PUBLISHED | Open reference |
| 122 | 6DS3900-8AD | Not stated | Not stated | Reads and writes the documented TELEPERM M disk format for control-system service and data transfer. | Individual research | PUBLISHED | Open reference |
| 123 | 6ED1052-1CC00-0BA8 | Not stated | Not stated | Executes the programmed LOGO! control logic, reads its documented input channels, and switches transistor outputs. | Individual research | PUBLISHED | Open reference |
| 124 | 6ED1052-1CC08-0BA1 | Not stated | Not stated | Executes the programmed LOGO! logic, processes field inputs, switches transistor outputs, and exposes the documented Ethernet services. | Individual research | PUBLISHED | Open reference |
| 125 | 6ED1052-1FA00-0BA0 | Not stated | Not stated | Executes programmed LOGO! logic and switches the documented relay output interface for a 230 V control installation. | Individual research | PUBLISHED | Open reference |
| 126 | 6ED1052-1HB00-0BA8 | Not stated | Not stated | Executes programmed LOGO! logic, reads eight digital inputs, switches four relay outputs, and communicates through Ethernet. | Individual research | PUBLISHED | Open reference |
| 127 | 6ED1052-2HB08-0BA2 | Not stated | Not stated | Executes programmed LOGO! logic, processes eight digital inputs, switches four relay outputs, and exposes the documented Ethernet services. | Individual research | PUBLISHED | Open reference |
| 128 | 6ED1055-1CB00-0BA2 | Not stated | Not stated | Controls and expands a LOGO! 8 controller with four digital inputs and four transistor outputs. | Individual research | PUBLISHED | Open reference |
| 129 | 6ED1055-1MA00-0BA2 | Not stated | Not stated | Acquires two 0-10 V or 0/4-20 mA analog signals and provides them to the LOGO! 8 control program. | Individual research | PUBLISHED | Open reference |
| 130 | 6ED1055-1NB10-0BA2 | Not stated | Not stated | Controls and expands a LOGO! 8 controller with eight digital inputs and eight relay outputs. | Individual research | PUBLISHED | Open reference |
| 131 | 6ED1055-4MH00-0BA0 | Not stated | Not stated | Displays LOGO! status and message text and accepts the operator's local key input through the connected TD interface. | Individual research | PUBLISHED | Open reference |
| 132 | 6ED1055-4MH08-0BA1 | Not stated | Not stated | Displays LOGO! 8 messages and status while providing the documented Ethernet-connected operator interface. | Individual research | PUBLISHED | Open reference |
| 133 | 6EP1334-2AA01-0AB0 | Not stated | Not stated | Converts single-phase AC input into a regulated 24 V DC, 10 A supply for downstream automation equipment. | Individual research | PUBLISHED | Open reference |
| 134 | 6EP1334-2BA20 | Not stated | Not stated | Converts single-phase AC mains into a regulated 24 V DC, 10 A supply for PLC, I/O, HMI, and other control-panel loads. | Individual research | PUBLISHED | Open reference |
| 135 | 6EP1336-2BA00 | Not stated | Not stated | Converts single-phase 120/230 V AC into a stabilized 24 V DC supply rated at 20 A. | Individual research | PUBLISHED | Open reference |
| 136 | 6EP1336-2BA10 | Not stated | Not stated | Converts single-phase AC input into a controlled isolated 24 V DC output rated at 20 A. | Individual research | PUBLISHED | Open reference |
| 137 | 6EP1931-2DC21 | Not stated | Not stated | Buffers a 24 V DC control bus at up to 6 A during a supply interruption when paired with a documented battery module. | Individual research | PUBLISHED | Open reference |
| 138 | 6EP1935-5PG01 | Not stated | Not stated | Supplies an additional 5 kW-s capacitor energy-storage stage to a SITOP UPS500S system. | Individual research | PUBLISHED | Open reference |
| 139 | 6EP1935-6ME21 | Not stated | Not stated | Supplies stored 24 V DC energy to a compatible SITOP DC UPS module during buffer operation. | Individual research | PUBLISHED | Open reference |
| 140 | 6EP1961-2BA31 | Not stated | Not stated | Supplies the documented DC power path for the industrial control system. | Individual research | PUBLISHED | Open reference |
| 141 | 6EP3336-7SB00-3AX0 | Not stated | Not stated | Supplies the documented DC power path for the industrial control system. | Individual research | PUBLISHED | Open reference |
| 142 | 6EP4347-7RB00-0AX0 | Not stated | Not stated | Supplies the documented DC power path for the industrial control system. | Individual research | PUBLISHED | Open reference |
| 143 | 6EP7133-6AB00-0BN0 | Not stated | Not stated | Supplies the documented DC power path for the industrial control system. | Individual research | PUBLISHED | Open reference |
| 144 | 6EP7133-6AE00-0BN0 | Not stated | Not stated | Supplies the documented DC power path for the industrial control system. | Individual research | PUBLISHED | Open reference |
| 145 | 6ES5095-8MC01 | Not stated | Not stated | Controls or interfaces with the documented SIMATIC S5 control system. | Individual research | PUBLISHED | Open reference |
| 146 | 6ES5240-1AA21 | Not stated | Not stated | Processes or counts documented position and counter signals in an S5 system. | Individual research | PUBLISHED | Open reference |
| 147 | 6ES5242-1AA12 | Not stated | Not stated | Processes or counts documented position and counter signals in an S5 system. | Individual research | PUBLISHED | Open reference |
| 148 | 6ES5375-0LD21 | Not stated | Not stated | Receives and retains documented S5 program or parameter memory data. | Individual research | PUBLISHED | Open reference |
| 149 | 6ES5375-1LA15 | Not stated | Not stated | Receives and retains documented S5 program or parameter memory data. | Individual research | PUBLISHED | Open reference |
| 150 | 6ES5377-0AB41 | Not stated | Not stated | Receives and retains documented S5 program or parameter memory data. | 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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