Siemens 6ES7216-2BD23-0XB8 SIMATIC S7-200 CN CPU 226

Overview

SIEMENS INDUSTRIAL AUTOMATION

Siemens 6ES7216-2BD23-0XB8 SIMATIC S7-200 CN CPU 226

CPU 226 CN compact controller with AC supply, integrated digital I/O and two communication ports.

At a Glance

Brand	Siemens
Model	6ES7216-2BD23-0XB8
Product Type	SIMATIC S7-200 CN CPU 226 compact controller
Core Function	PLC control with 24 digital inputs and 16 relay outputs
Compatible Series	SIMATIC S7-200 CN

Identification

S7-200 CN CPU 226 with the complete 0XB8 suffix.

Electrical Interface

AC-powered controller with DC inputs and relay outputs.

Configuration

Retain the S7-200 CN project and expansion-module configuration during replacement.

Product Overview

6ES7216-2BD23-0XB8 is an S7-200 CN CPU 226 compact controller. It combines 24 digital inputs and 16 relay outputs with two RS-485 communication ports and supports seven expansion modules.

Ordering focus: confirm the complete 0XB8 article number, AC supply, relay-output wiring, existing program and expansion modules.

Key Functions

Integrated process I/O

Controls 24 digital input signals and 16 relay output channels.

Serial communication

Provides two RS-485 ports for S7-200 communication.

Expandable configuration

Supports up to seven expansion modules for additional I/O.

Official Specifications

Supply Voltage	85–264 V AC
Program Memory	24 KB
User Data Memory	10 KB
Serial Interfaces	2 RS-485 ports
Maximum Expansion Modules	7
Maximum Digital I/O with Expansion	128 inputs and 128 outputs
Maximum Analog I/O with Expansion	28 inputs and 14 outputs
5 V Bus Current	1,000 mA
24 V Sensor Supply Current	400 mA
Dimensions (W × H × D)	196 × 80 × 62 mm

Official source:Siemens product details for 6ES7216-2BD23-0XB8.

Frequently Asked Questions

How many expansion modules can I connect to 6ES7216-2BD23-0XB8?

The CPU 226 supports up to seven expansion modules.

Which supply does 6ES7216-2BD23-0XB8 require?

This AC-powered CPU is specified for an 85–264 V AC supply.

How many serial ports does 6ES7216-2BD23-0XB8 provide?

The controller has two RS-485 communication ports.

How much program memory does 6ES7216-2BD23-0XB8 have?

The CPU 226 provides 24 KB of program memory.

How much user-data memory does 6ES7216-2BD23-0XB8 have?

The controller provides 10 KB of user-data memory.

What output wiring should I expect on 6ES7216-2BD23-0XB8?

The unit has 16 integrated relay outputs.

What should I preserve when replacing 6ES7216-2BD23-0XB8?

Preserve the installed program and match the full CN article number, expansion modules and field wiring.

Compatibility & Ordering Notes

Before ordering 6ES7216-2BD23-0XB8: confirm the complete 0XB8 article number, AC supply, relay-output wiring, existing program and expansion modules.

Compatibility checklist

• Match the full 6ES7216-2BD23-0XB8 order number to the installed S7-200 CN CPU 226.
• Check the 85–264 V AC supply and wiring of the 16 integrated relay outputs before replacement.
• Preserve the installed program and check both RS-485 communication-port connections.
• Verify the station uses no more than seven expansion modules and compare their configuration with the existing project.

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