DESCRIPTION OF FUNCTIONS
28 | EN
6 Description of functions
The SCTMi primarily consists of the IO-Link bus module and between 2 and 16 ejectors. Depending
on the function, it refers to the IO-Link bus module or the individual ejector.
General SCTMi functions
Independently of the ejectors, the SCTMi IO-Link bus module has the following functions:
Device identification
System commands
Access rights
Diagnostics and monitoring functions
A wide range of parameters and values are measured. They are made available via the process data
and ISDU parameters and are used for further diagnostics.
Determining various SCTMi system parameters
Device status in the form of a system traffic light and detailed ISDU parameters
Condition monitoring
EPC values
IO-Link events
Functions of the individual SCPSt ejectors
The functions described below relate to an SCTMi ejector and apply to the same extent for each
individual ejector, regardless of the number of installed ejectors:
Switching points for control and component checks
Control functions
Blow-off functions
Evacuation time setting t1
Setting for the permitted leakage
Permanent and deletable counters for the suction cycles and switching frequency of the
valves
Manual mode
All modifiable parameter data (e.g. switching point settings) is saved in the bus module.
When replacing an ejector, the previous data is loaded to the new ejector.
The parameterization server function of the IO-Link master should be used to ensure that no
data is lost when switching the bus module.
A detailed description of the process data and all the device parameters can be found in the data
dictionary, which can be downloaded together with the IODD as a ZIP archive from
www.schmalz.com.
