Siemens SINUMERIK 840D sl Operating Manual page 299

Query step - Up.$Step[id]
The Up.$Step[id] system variable can be used to query whether a specific step is available
in manipulation tasks, dialog scripts or step scripts.
Example
CHANDATA(1)
If Up.$Step[C_AXIS] != null
$Step[C_AXIS].Activated == true
EndIf
Enable step - Up.$Step[id].Activated
Using the system variable Up.$Step[id].Activated, the activation status of a specific
step is defined in the step tree.
The system variable Up.$Step[id].Activated supplies the value "true" for all steps whose step
symbol (option button or checkbox) are displayed in white or green with checkmark - and the
value "false" for all other step symbols without a checkmark.
The step is activated now, but it is not considered during package execution as long as the
step is additionally assigned the "Execute" status and displayed in green.
SINUMERIK Integrate Create MyConfig - Diff, Expert, Topo
Operating Manual, 11/2016, A5E36537479B-AD
If Up.
$MA_IS_ROT_AX[AX5] = 1
EndIf
Create MyConfig - Expert
4.7 Reference list, system variables
; Step with ID: C_AXIS is available
; Step with ID: C_AXIS is activated
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