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Entry type: FAQ Entry ID: 109483688, Entry date: 03/21/2016

With active referencing, why does the parameter for the approach direction not match the actual approach direction?

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The technological objects PositioningAxis (S7-1200 CPU, S7-1500 CPU) and SynchronousAxis (S7-1500 CPU) have the parameter "Homing.ApproachDirection" for setting the approach direction to a reference point switch.

Contrary to the current documentation (SIMATIC S7-1500 S7-1500 Motion Control V13 Update 3, TIA Portal V13 SP1 Update 7 Online Help), the parameter is set as follows:

FALSE: Positive approach direction
TRUE: Negative approach direction

Additional Keywords
TO, Motion Control, Axis, Referencing, To reference, Reference switch, Reference, Technology Object

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