Process image

The following figure shows the representation of the process image in delivery state.

Process image 1:

You can configure the process image via "Predefinded PDO Assignments", see chapter Setting a Predefined PDO Assignment.

The process data objects are described below as an example for the acceleration measuring axis "Acc X". The descriptions can be transferred to the other measuring axes "Acc Y/Z" and "Gyro X/Y/Z".

AI Acc X Samples 1 (Real32)

Process image 2:

Samples[0]
The current measured value. The measuring unit in the delivery state is 1 g for the acceleration axes ("Acc") and 1 dps for the angular velocity axes ("Gyro").
When oversampling is enabled, the array "Samples" contains further elements "Samples[1]", "Samples[2]", etc.

AI Acc X Input Cycle Counter (Real32)

This process data object is disabled in the factory settings. You can enable it by setting a corresponding Predefined PDO Assignment, see chapter Setting a Predefined PDO Assignment.

Process image 3:

Input Cycle Counter
A counter from 0 to 65535dec. It is incremented by 1 with each transmitted measured value ("Sample"). If it exceeds 65535dec, it starts again at 0.
If oversampling is enabled, it is increased by the oversampling factor with each EtherCAT frame if the configuration is correct.

AI Acc X Status

Process image 4:

Slope detected
This bit reports jumpy changes of the acceleration measuring value.
See chapter Status display.

Dig Outputs

Process image 5:

LED 1, LED 2, LED 3
Variables for controlling LEDs on the housing.
See chapter Controlling LEDs.

Further Information