turck FEN20-4IOL - Using Data Storage Mode; Data Storage Mode: Activated

Operating
Using the data storage mode
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10.5 Using the data storage mode
Data storage mode
NOTE
Data storage mode is only available for devices complying with the IO-Link specifica-
tion V1.1.
In the IO-Link master, the data storage mode can be set using the parameter "data storage
mode".
n 00 = activated
n 01 = overwrite
n 10 = read in
n 11 = deactivated, clear
IO-Link-Master
(IOLM)
IO-Link-Device
(IOLD)
DS_UPLOAD_FLAG
Fig.50: Data storage mode – general principle, Para. IOLD = parameters of the IO-Link device
A change of parameters in the device is indicated by the status of the DS_UPLOAD_FLAG bit:
n 0 = no changes in the device's parameter set
n 1 = changes in the device's parameter set (e. g. via DTM, at the device, etc.)
10.5.1 Parameter ”data storage mode” = activated
The synchronization of the parameter sets is bidirectional.
The actual data set (master or device) is valid:
The following applies:
n The data set in the device is actual, if DS_UPLOAD_FLAG = 1.
n The data set in the Master is actual, if DS_UPLOAD_FLAG = 0.
Use Case 1: Parameterizing the Device Using e.g. a DTM
ü The IO-Link device is already installed in the system and connected to the master.
 Parameterizing the device via DTM.
a DS_UPLOAD_FLAG = 1, parameter set in the device changed.
a The parameter data are transferred from the new IO-Link device to the IO-Link master.