Siemens SIMATIC S7-200 CN 6ES7216-2AD23-0XB8 CPU 226 DC/DC/DC

Overview

19:11:09Siemens · SIMATIC S7-200 CN

6ES7216-2AD23-0XB8 CPU 226 DC/DC/DC Compact CPU

Siemens 6ES7216-2AD23-0XB8 is a SIMATIC S7-200 CN CPU 226 DC/DC/DC compact controller with 24 digital inputs, 16 transistor outputs and two PPI or user-programmable communication ports.

At a Glance

Brand	Siemens
Model	6ES7216-2AD23-0XB8
Product Type	Compact programmable logic controller
Core Function	Executes machine control with integrated 24 V DC digital I/O
Application or Compatible Series	SIMATIC S7-200 CN automation systems

Supply and Outputs

Use the 24 V DC CPU version with transistor output loads.

Program Backup

Archive the STEP 7-Micro/WIN project, data blocks and port settings.

Field Wiring

Retain the 24-input and 16-output channel map before replacement.

Product Overview

Siemens 6ES7216-2AD23-0XB8 is a SIMATIC S7-200 CN CPU 226 DC/DC/DC compact controller with 24 digital inputs, 16 transistor outputs and two PPI or user-programmable communication ports.

Provides 24 DC inputs and 16 transistor outputs in the compact CPU. Two ports support PPI or user-programmable Freeport communication. Supports S7-200 expansion modules and configured field devices.

Ordering focus: confirm the CN CPU 226 DC/DC/DC version, 24 V supply, transistor-output wiring, project memory, expansion layout and both serial ports.

Key Functions

Integrated Digital I/O

Provides 24 DC inputs and 16 transistor outputs in the compact CPU.

Dual Serial Communication

Two ports support PPI or user-programmable Freeport communication.

Expandable Controller Platform

Supports S7-200 expansion modules and configured field devices.

Official Specifications

Controller Type	CPU 226 DC/DC/DC
Supply Voltage	24 V DC
Digital Inputs	24
Digital Output Type	Transistor
Digital Outputs	16
Program Memory	16 KB or 24 KB depending on configuration
Data Memory	10 KB
Communication Ports	2 PPI / Freeport ports
Typical Power Loss	11 W
Width	196 mm
Height	80 mm
Depth	62 mm
Net Weight	0.488 kg
Certification Variant	CE

Official source:Siemens official technical data for 6ES7216-2AD23-0XB8.

Frequently Asked Questions

Which power source should I use for 6ES7216-2AD23-0XB8?

Use a regulated 24 V DC source sized for the CPU and connected field loads.

Are the outputs on 6ES7216-2AD23-0XB8 relay contacts?

This DC/DC/DC version uses transistor digital outputs.

How many field signals can 6ES7216-2AD23-0XB8 connect directly?

The compact controller provides 24 digital inputs and 16 digital outputs.

Which software should I use to maintain 6ES7216-2AD23-0XB8?

Use the compatible STEP 7-Micro/WIN engineering environment for the installed S7-200 project.

Can both communication ports on 6ES7216-2AD23-0XB8 be used for serial devices?

Both ports support PPI and user-programmable Freeport operation when configured correctly.

What should I back up before exchanging 6ES7216-2AD23-0XB8?

Save the program, data, retentive settings, port parameters and I/O map before removal.

What must I verify after installing 6ES7216-2AD23-0XB8?

Check the DC supply, transistor-load polarity, expansion modules and both communication-port settings.

Compatibility & Ordering Notes

Before ordering 6ES7216-2AD23-0XB8: confirm the CN CPU 226 DC/DC/DC version, 24 V supply, transistor-output wiring, project memory, expansion layout and both serial ports.

Compatibility Checklist

• Use only in an approved SIMATIC S7-200 CN hardware configuration.
• Restore the saved STEP 7-Micro/WIN project and retentive data before commissioning.
• Verify transistor output polarity and external load voltage before energizing.

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