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Compact AS-i modules save space in the control cabinet


SPS IPC Drives 2015, Hall 11

  • New and extremely compact series of AS-i SlimLine compact modules in degree of protection IP20 for the control cabinet and distributed control boxes
  • Digital and fail-safe I/O (input/output) modules in 17.5 and 22.5 millimeter slimline design
  • Half the width of the previous devices: 17.5 mm variants currently the narrowest AS-i modules on the market
  • Practice-oriented functions simplify and expand the application options

Siemens has developed extremely compact I/O (input/output) modules for AS-Interface with widths of just 17.5 and 22.5 millimeters. The new AS-i SlimLine compact modules are just half the width of the predecessor devices, and they save space in the control cabinet and in distributed control boxes.

They possess new, practice-oriented functions, such as device connectors and switchable sensor supply, that surpass the previous functional scope. The 17.5 mm variants are currently the slimmest AS-i modules on the market.

The new series of AS-i SlimLine compact modules in degree of protection IP20 encompasses digital I/O modules as well as ASIsafe modules with safe inputs. It replaces the previous S22.5 and S45 SlimLine modules. The new AS-i SlimLine compact modules supplement the product range of AS-i field modules and they are suitable for initial installation, servicing, or whenever a change or expansion is made to your plant.

The new AS-i SlimLine compact modules from Siemens are available with 4DI/4DO in 22.5-mm design, and with 4DI or 2F-DI in the especially slim 17.5 mm enclosure. The digital outputs are available as solid-state and relay outputs. Sensors and actuators, as well as the AS-Interface bus cable, are connected by means of removable screw terminals or push-in spring-type terminals.

The optional device connector enables simple connection of several modules with the AS-i bus cable and the 24 V DC power supply. This additionally reduces the wiring effort and supports users in fast, error-free assembly. LEDs on the front of the new compact modules enable fast diagnostics on-site.

All devices of the new AS-i SlimLine compact series have a switchable sensor supply. Depending on requirements, the sensors can be supplied with power either from the AS-i bus cable, or from the 24 V DC power supply Uaux. Since the wiring of the sensors is independent of the choice of power supply, users can decide simply according to the application.

For further information, please see

Siemens AG (Berlin and Munich) is a global technology powerhouse that has stood for engineering excellence, innovation, quality, reliability and internationality for more than 165 years. The company is active in more than 200 countries, focusing on the areas of electrification, automation and digitalization. One of the world's largest producers of energy-efficient, resource-saving technologies, Siemens is No. 1 in offshore wind turbine construction, a leading supplier of gas and steam turbines for power generation, a major provider of power transmission solutions and a pioneer in infrastructure solutions as well as automation, drive and software solutions for industry. The company is also a leading provider of medical imaging equipment – such as computed tomography and magnetic resonance imaging systems – and a leader in laboratory diagnostics as well as clinical IT. In fiscal 2015, which ended on September 30, 2015, Siemens generated revenue of €75.6 billion and net income of €7.4 billion. At the end of September 2015, the company had around 348,000 employees worldwide.

Further information is available on the Internet at

Reference Number: PR2015110055DFEN

Mr. Gerhard Stauß
Digital Factory Division
Siemens AG

Gleiwitzer Str. 555

90475 Nuremberg


Tel: +49 (911) 895-7945


Gerhard Stauß | Siemens Digital Factory

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