545-1101 Siemens CPU Module | Industrial Automation PLC

Product Description / Overview

The Siemens 545-1101 is a CPU module for the SIMATIC TI545 PLC series, providing central processing for industrial automation tasks.
It executes ladder logic and structured text programs while managing discrete and analog I/O communications.

Designed for rack installation, this module integrates seamlessly with TI545 chassis, power supplies, and I/O expansion modules.
Moreover, it delivers robust performance and reliability in demanding industrial environments.

The 545-1101 supports up to 16K words of program memory and provides flexible communication through RS-232/RS-485 ports.
In addition, it ensures long-term operation in medium-to-large automation applications, maintaining proven industrial performance.

Technical Data / Specifications

Product Type: PLC CPU Module
Series: SIMATIC TI545
Model Number: 545-1101
Processor Type: TI 545 CPU
Program Memory: Up to 16K words (expandable)
Data Memory: Several KB for variables and registers
Instruction Set: Ladder logic, statement list (STL), function block support
I/O Capacity: Supports hundreds of digital and analog I/O points via expansion modules
Communication Ports: RS-232 / RS-485 (programming and networking)
Power Supply: Provided via TI545 rack PSU (typically 120/240 V AC input)
Mounting: Rack-mounted in TI545 chassis
Operating Temperature: 0 … +60 °C
Storage Temperature: -40 … +85 °C
Relative Humidity: 5 … 95 % non-condensing
Dimensions: Standard TI545 rack slot (300 × 40 × 200 mm)
Weight: 1.5–2.0 kg

FAQ

What PLC systems are compatible with the 545-1101 CPU module?
It works with Siemens TI545 PLC systems and compatible expansion modules.

How much program memory does this CPU provide?
Supports up to 16K words, expandable depending on configuration.

Which programming languages are supported?
Ladder logic, statement list (STL), and function block programming are supported.

Can it handle analog and digital I/O?
Yes, it supports hundreds of digital and analog I/O points via expansion modules.

How is the module mounted?
It installs in a TI545 rack chassis, fitting a standard TI545 slot.