Safety
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3.5.4
Power drop during write and delete accesses in the file system
The FAT file system in the netX firmware is subject to certain limitations in
its operation. Write and delete accesses in the file system (firmware
update, configuration download etc.) can destroy the FAT (File Allocation
Table) if the accesses cannot be completed if the power drops. Without a
proper FAT, a firmware may not be found and cannot be started.
Ø
Make sure, that the power supply of the device does not drop during
write and delete accesses in the file system (firmware update,
configuration download etc.).
3.5.5
Exceeding the maximum number of permitted write and delete
accesses
This device uses a serial flash chip to store remanent data such as
firmware storage, configuration storage, etc. This device allows a maximum
of 100,000 write/delete accesses that are sufficient for standard operation
of the device. However, writing/deleting the chip excessively (e.g. changing
the configuration or changing the name of station) leads to the maximum
number of permitted write/delete accesses being exceeded and to device
damage. For example, if the configuration is changed once an hour, the
maximum number is reached after 11.5 years. If the configuration is
changed even more frequently, for example once a minute, the maximum
number is reached after approx. 69 days.
Avoid exceeding the maximum permitted write/delete accesses by writing
too often.
3.6
Information and data security
Take all usual measures for information and data security, in particular, for
PC cards with Ethernet technology. Hilscher explicitly points out that a
device with access to a public network (Internet) must be installed behind a
firewall or only be accessible via a secure connection such as an encrypted
VPN connection. Otherwise, the integrity of the device, its data, the
application or system section is not safeguarded.
Hilscher cannot assume any warranty or liability for damage due to
neglected security measures or incorrect installation.
CIFX M223090AE Real-Time Ethernet | Hardware description and installation
DOC190704UM02EN | Revision 2 | English | 2020-06 | Released | Public
© Hilscher 2020
