Siemens 6ES7216-2BD23-0XB0 SIMATIC S7-200 CPU 226 Compact Controller
01Technical Summary
Siemens 6ES7216-2BD23-0XB0 is a SIMATIC S7-200 CPU 226 compact controller with an AC power supply, 24 DC digital inputs, and 16 relay digital outputs. It combines controller memory, local I/O, two PPI or user-programmable communication interfaces, high-speed input functions, and removable terminals in one compact S7-200 unit.
02Specifications
| Manufacturer | Siemens |
|---|---|
| Article Number | 6ES7216-2BD23-0XB0 |
| Product Family | SIMATIC S7-200 |
| CPU Type | CPU 226 compact unit |
| Supply | 120 / 230 V AC rated |
| Power Loss | 17 W typical |
| Digital Inputs | 24 DC inputs |
| Digital Outputs | 16 relay outputs |
| Relay Output Rating | 2 A rated per output |
| Program Memory | 24 KB integrated; 16 KB with run-time edit active |
| Data Memory | 10 KB integrated |
| Communication Interfaces | 2 PPI / user-programmable interfaces |
| High-Speed Input Capability | Up to 30 kHz on supported inputs |
| Lifecycle | Discontinued product; spare-part status, no replacement product listed |
03Features
Design and Function
- Compact CPU integrates processing, AC supply, local DC inputs, and relay outputs.
- Integral EEPROM retains the program without maintenance.
- Optional memory module supports additional program and file storage functions.
- Input filters can be parameterized for the standard digital inputs.
- LAD, FBD, and STL programming are supported by the documented S7-200 engineering environment.
- Plug-in I/O terminals simplify controlled maintenance and wiring replacement.
- Two communication interfaces support the original S7-200 PPI and user-programmable communication design.
Verified Identity
Manufacturer: Siemens
Model: 6ES7216-2BD23-0XB0
Product Type: SIMATIC S7-200 CPU 226 Compact Controller
04Compatibility
- Use only in a SIMATIC S7-200 configuration engineered for CPU 226 and this AC-supply relay-output variant.
- Confirm the 120 / 230 V AC supply arrangement and the field load voltage before installation.
- Verify expansion-module current demand against the CPU supply capability.
- Preserve the original program, retentive data, passwords, communication settings, and high-speed I/O assignments.
- The 0XB8 China variant is a separate order number and must not be treated as the same article.
05Replacement & Lifecycle
- Siemens currently identifies the article as discontinued and does not list a direct replacement product.
- For like-for-like maintenance, match the full 6ES7216-2BD23-0XB0 article number and hardware revision.
- Back up the complete STEP 7 Micro/WIN project and current data required for recommissioning.
- Check terminal labeling, expansion hardware, PPI addresses, and relay-load protection before power-up.
- Any platform migration should be engineered as an S7-200 system conversion rather than a CPU-only substitution.
06Applications
- Legacy machine automation using SIMATIC S7-200 control.
- Compact control panels requiring integrated digital I/O and relay switching.
- Installed CPU 226 systems that use PPI networking or serial user programs.
- Maintenance replacement where the original AC-supply and relay-output configuration must be retained.
FAQFrequently Asked Questions
How many local digital inputs and outputs are provided?
The CPU provides 24 DC digital inputs and 16 relay digital outputs.
What supply does this exact CPU use?
It is the AC power-supply version rated for 120 V AC and 230 V AC systems.
What programming languages are supported?
The documented S7-200 environment supports LAD, FBD, and STL.
Does Siemens list a direct replacement?
No. Siemens identifies the product as discontinued without a listed replacement product.
Can 6ES7216-2BD23-0XB8 be used automatically?
No. The 0XB8 article is a separate China variant and requires its own approval and compatibility review.
What should be backed up before replacement?
Save the complete program, retentive data needed for commissioning, passwords, communication parameters, and high-speed I/O assignments.
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