D301171 - IO-Link master 1108
4-15
Application example with Siemens PLC and FB 102 (IO-Link CALL)
4
Deactivation of write protection (index 59)
If a write access to an index (except for index 59) via IOL_CALL should not be possible, a write
protection may most likely be activated in the connected sensor.
This is usually shown by the sensor sending an error code (e.g.: IOL_STATUS = 0×00008023
= access denied).
If necessary, this write protection has to be deactivated.
To do this, the "write protection" index of the sensor has to be written with the sensor’s
"release value". The index as well as the value to be written for deactivating the write protec-
tion depend on the respective sensor. This information can be found in the documentation of
the respective device.
The write protection-index for the TURCK pressure sensor in the preceding application-
example (
) is the
IO-Link write protection index 0×59
.
Table 20:
Index 0×59 -
write protection
Value Hex
Function
0×00
no write protection
0×01
Writing of parameters via IO-Link not possible (except for index 0x59)