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Charlotte Stonestreet
Managing Editor |
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Editor's Pick
Save space in the control cabinet
30 November 2015
Siemens has developed extremely compact I/O (input/output) modules for AS-Interface with widths of just 17.5 and 22.5mm. The new AS-i SlimLine compact modules are just half the width of the predecessor devices, saving space in the control cabinet and distributed control boxes.

The modules feature new, practice-oriented functions such as device connectors and switchable sensor supply. The 17.5 mm variants are currently the slimmest AS-i modules on the market.
The IP20 AS-i SlimLine range encompasses digital I/O module 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 are suitable for initial installation, servicing, or whenever a change or expansion is made to your plant.
The modules are available with 4DI/4DO in 22.5-mm design, and with 4DI or 2F-DI in the 17.5mm 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 24V 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.
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