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KNX Actuators / MSA-810 User Manual

Logic functions and validation

Virtual logic functions and checks for channel operation, feedback and common faults.

elausys · 18 September 2026
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The KNX logic module is a virtual extension module that is part of the ETS application of the master actuator. No additional physical device is needed. Each logic module has 8 logic functions including logic gates, sequences, triggers, math operation and weekly calendar events.

  • Logic Gate with 8 inputs, configurable output delay and inversion
  • Sequence with 4 steps, configurable outputs delays and datatypes
  • Trigger with inputs logic, delays and weekly calendar events
  • Math operations with configurable objects type and delays

Refer to the Logic Module user manual for more details on each function.

Validate the installation

Check commanded operation and status feedback for each configured function. Confirm startup behaviour, blocking and configured safety-alarm reactions under controlled conditions. For logic functions, use the Logic Module User Manual for the complete parameter and object reference.

SymptomChecks
Extension does not respondCheck the auxiliary supply, side connection, addressing procedure and extension order in ETS. Switch off the power before changing a physical connection.
Manual operation is unavailableCheck Manual Control in the general settings and the selected channel.
Command has no effectCheck the group address, channel function, Block object and any configured delays or safety alarms.
Shutter or slat position is inaccurateCheck measured travel times, slat time, motor startup delay and the configured motor type.

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Frequently Asked Questions

Does a logic module require additional hardware?

No. It is a virtual extension within the master's ETS application, with eight logic functions per module.

What should be checked if an extension does not respond?

Check auxiliary power, the side connection, addressing and extension order in ETS. Switch off power before changing a physical connection.

Keep exploring

Find the other guides for this product in the documentation.

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