HIMA HIMatrix F2 DO 16 02 - Reset Key

3 Product Description F2 DO 16 02
Page 20 of 42 HI 800 139 E Rev. 2.00
3.4.4 Reset Key
The remote I/O is equipped with a reset key. The key is only required if the user name or
password for administrator access is not known. If only the IP address set for the remote I/O
does not match the PADT (PC), the connection can be established with a Route add entry on
the PC.
The key can be accessed through a small round hole located approximately 5 cm from the
upper left-hand side of the housing. The key is engaged using a suitable pin made of insulating
material to avoid short-circuits within the remote I/O.
The reset is only effective if the remote I/O is rebooted (switched off and on) while the key is
simultaneously engaged for at least 20 s. Engaging the key during operation has no effect.
Properties and behavior of the remote I/IO after a reboot with engaged reset key:
 Connection parameters (IP address and system ID) are set to the default values.
 All accounts are deactivated except for the administrator default account with empty
password.
After a new reboot without the reset key engaged, the connection parameters (IP address and
system ID) and accounts become effective:
 Those configured by the user.
 Those valid prior to rebooting with the reset key engaged, if no changes were performed.