System Parameters - Festo VTEM Description, Function, Parameterisation

Motion terminal

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Function

Information on adding to your available licences can be found in the Festo catalogue

è www.festo.com/sp.

2.4.3

Parameter

The basic conditions for operating a Motion App are set using system and app-specific parameters.

There is a distinction here between 4 types of parameters:

–

System parameters describe the components that are connected to the Motion Terminal (tubing,

drive, mounting position, etc.). System parameters apply to a valve slot and hence jointly to all

Motion Apps running on this valve slot.

–

Application parameters describe the application of the Motion App (moving mass, travel time,

minimum force, etc.). Application parameters can be stored separately on each valve for each

Motion App.

–

Tuning parameters enable the behaviour of a Motion App to be finely adjusted via the application

parameters. The system behaviour can thus be optimised for special applications. Tuning para-

meters can be stored separately on each valve for each Motion App.

–

Sensor parameters describe the sensors connected to the inputs of an input module. Sensor para-

meters can be read and written from every valve. They are not a component of the parameter sets

(è 2.4.3.6 Parameter sets) and can be used equally from all valves.

The following sections relate to transferring the parameters using the higher-order controller (PLC).

Since communication only allows for integer values, the unit-based values are increased by a factor to

give integer values.

Example:

A parameter can be defined in the range of 0 ... 100 mm in 0.01 mm steps. For this, a value in the

range 0 ... 10000 is transferred. One increment (digit) therefore corresponds to 0.01 mm.

2.4.3.1