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Siemens AG
Entry type: FAQ Entry ID: 153554, Entry date: 06/24/2004
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Digital input/output module 6ES5 482-8MA13 (16DE/16DA) and on-board I/O of the AG 95 / pulse at the digital outputs

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QUESTION:
When the power supply L+ (24V) is switched to the module, the outputs switch through for a short time. How can I suppress this pulse?

ANSWER:
In this case there is a short impulse with very low energy (average period of time ca. 100 µs). Due to technical reasons, this impulse cannot be avoided. A normal digital input of a SPS does not respond to this impulse. Very sensitive, quickly responding loads (e. g. electronic counter, converter) however, can respond.

Remedy:
You can switch an external capacitor to the digital outputs. You switch the capacitor between the digital output and ground.

  • Ceramic capacitor 60V / 100nF

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