HIMA HIMatrix F30 011 - Reset Key; Hardware Clock

3 Product Description F30 01
Page 24 of 52 HI 800 145 E Rev. 2.00
3.4.3 Reset Key
The controller 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 controller does
not match the PADT (PC), the connection can be established with a Route add entry on the
PC.
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Only the model variants without protective lacquer are equipped with a reset key.
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 controller.
The reset is only effective if the controller 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.
CAUTION
Fieldbus communication may be disturbed!
Prior to switching on the controller with the reset key engaged, all device fieldbus
connectors must be unplugged to ensure that the fieldbus communication among other
stations is not disturbed.
The fieldbus plugs may only be plugged in again when the controller is in the RUN or
STOP state.
Properties and behavior of the controller 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.
 With COM operating system version 10.42 and higher, loading a user program or operating
system with default connection parameters is inhibited!
The loading procedure is only allowed after the connection parameters and the account have
been configured on the controller and the controller has been rebooted.
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.
3.4.4 Hardware Clock
In case of loss of operating voltage, the power provided by an integrated gold capacitor is
sufficient to buffer the hardware clock for approximately one week.