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iC9200 Series
4.7
MRESET and reset to factory settings
MRESET
Reset to factory settings
type 1
With operating mode switch
With DIP switch S1
HB700 | CPU | PMC921xEx | en | 24-04
■
The CPU is set to the Ready state.
■
The working memory is unloaded, but the user program remains in the overlay file
system.
■
The non-volatile memory for retentive data is deleted.
1.
Switch your CPU to STOP state.
2.
Push the operating mode switch down to position MR.
3.
Release the operating mode switch after 3 seconds and press it back to the MR
position within 3 seconds.
4.
Release the operating mode switch after 3 seconds.
■
The CPU now executes a MRESET.
��
■
To confirm, you will receive a diagnostic message that a MRESET was exe-
cuted. You can output e.g. in iCube Engineer via 'Notifications' in the 'Cockpit'
editor.
■
The overlay file system with user program, configurations, user data and firmware
adjustments is deleted.
■
The non-volatile memory for retentive data is deleted.
■
The current firmware version remains, but all changes to it are discarded.
1.
Switch off the power supply of the CPU.
2.
Press and hold the operating mode switch in position MR and switch on the power
supply of the CPU again.
3.
As soon as the LEDs show the following behavior after start-up, release the oper-
ating mode switch again:
Status
RN
green
yellow
1Hz
�� The CPU now executes a reset to factory setting type 1.
1.
Switch off the power supply of the CPU.
2.
Set the DIP switches S1 under the front flap to the following position:
S1
S1-1
OFF
0 1
1
2
3.
Switch on the power supply of the CPU again.
After the start-up of the CPU it performs a reset to factory setting type 1 and shows
the following LED behavior:
Status
RN
green
yellow
1Hz
The CPU requests a power cycle after a reset to factory settings type 1:
Status
RN
1Hz
yellow
2Hz
MRESET and reset to factory settings
ER
IO ER
red
S1-2
Action
ON
After PowerON the CPU executes a reset to
factory settings type 1.
ER
IO ER
red
ER
IO ER
1Hz
1Hz
Deployment CPU iC921xM-EC
PN-C ER
PN-D ER
PN-C ER
PN-D ER
PN-C ER
PN-D ER
1Hz
1Hz
IO DIAG
IO DIAG
IO DIAG
1Hz
97
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