User Manual Section 5
GFK-2958L May 2021
Detailed Description of I/O Modules 291
Note: The real cycle time of the IO-Link port depends on the IO-Link device connected. If
you set a cycle time which is shorter than the minimum cycle time of the IO-Link
device, the smallest possible cycle time is automatically set. The web view is not
updated.
Message sync
All IO-Link ports with this parameter setting start simultaneously with message transmission.
The IO-Link device with the longest cycle time at these IO-Link ports determines the cycle
time.
Port cycle time (n*0.1 ms)” parameter
The “Port cycle time (n*0.1 ms)” defines the cycle time of the IO-Link port. This parameter is
only relevant if the “Port cycle” parameter has been set to “Fixed value”. According to the IO-
Link specification, the cycle time is coded with a time base (2 bits) and a multiplier (6 bits).
The coding is dependent on the cycle time
6, 4 ms +Time Base x Multipl.
32, 0 ms +Time Base x Multipl.
“IO-Link device check” parameter
This function allows the identification characteristics of a connected IO-Link device to be
checked. The transfer of the process data is only started once the characteristics match the
values set in the IO-Link master.
disabled (default)
The function is disabled and there is no validation.
Type compare
The Vendor ID and the Device ID are compared.
Identical
The Vendor ID, the Device ID and the serial number are compared.
“DS activation state” parameter
The “DS activation state” activates the Data Storage function. The Data Storage function
controls the parameter setting server of the IO-Link master. The parameter setting server
manages the IO-Link device parameters, such that the IO-Link master or an IO-Link device
(from IO-Link specification version 1.1) is very easy to replace.
disabled (default)
The Data Storage function is disabled. Parameter data already saved in IO-Link master is
retained.
Enabled
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