SICK Lector621 - Page 22

Interpretation of the stored parameter set
Once it is switched on, the device automatically detects the presence of a memory card
and, depending on the memory card’s content, behaves as follows:
■
If the memory card is empty or contains a parameter set that cannot be inter‐
preted by the device, the device saves its currently valid internal parameter set to
the memory card (provided there is sufficient storage space). The device then
starts with its internal parameter set.
■
If the memory card contains a parameter set that can be interpreted by the device,
the device permanently overwrites the currently valid internal parameter set with
this external parameter set. The device then starts with its new valid parameter
set.
■
The goal is for the internal parameter set and the parameter set saved externally
to always be identical.
The highest-ranking parameter set is used by the device when operated in the
PROFINET with the following sequence hierarchy:
1 After starting, the device loads the last permanently stored internal parameter set
to its working memory.
2 The device then searches for a valid parameter set in the optional external mem‐
ory card slot. If there is a positive search result, the device overwrites the existing
parameter set in its working memory with this external parameter set.
3 If the PROFINET controller sends a parameter set via the PROFINET with central
configuration of the bus users, the device again overwrites corresponding parame‐
ter values in its working memory. These changes are lost again when the device is
switched off. The PROFINET controller must then again send the most recently
valid parameter values each time the device is restarted (supply voltage is
switched on).
Removing the memory card from the device:
DANGER
Risk of injury due to hot device surface.
The surface of the device can become hot during operation.
•
Before performing work on the device (e.g. mounting, cleaning, disassembly),
switch off the device and allow it to cool down.
•
Ensure good lost heat transfer from the device.
NOTICE
Risk of damage to the memory card!
b
To avoid damaging the microSD memory card, make sure the device is de-ener‐
gized when you insert or remove the card. For this purpose, disconnect the device
from the supply voltage.
1. Switch off the supply voltage to the device.
2. Undo the screws on the hinged cover.
3. Making sure it is in the correct position, push the memory card into the slot until it
is released. When doing this, position the contacts so that they are facing to the
rear and upwards, see the card symbol on the device.
4. Remove the memory card.
5. Close the hinged cover. Make sure that the cover is completely flush with the hous‐
ing.
6. Tighten the screws on the hinged cover.
7. Switch on the supply voltage for the device.
3
PRODUCT DESCRIPTION
22
O P E R A T I N G I N S T R U C T I O N S | Lector621 8022502/15NT/2020-02-11 | SICK
Subject to change without notice