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Deployment CPU iC921xM-EC
Safe Mode
Reset to factory settings
type 2
4.8
Firmware update
4.9
Safe Mode
Start-Up in Safe Mode
98
4.
Switch off the power supply of the CPU.
5.
Set the DIP switch S1 to the default position:
S1
S1-1
OFF
0 1
1
2
6.
Switch on the power supply of the CPU again.
�� The CPU starts in Standard Mode.
■
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 is overwritten by the original firmware version and the
delivery state of the CPU is restored.
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 (duration ca. 30s):
Status
RN
green
yellow
2Hz
�� The CPU now executes a reset to factory setting type 2 and is then in the
delivery state.
You can update the firmware via the Web-based management WBM.
Update'...page 207
Please note that you can only execute a firmware update with adminis-
trator rights!
By means of the DIP switch 'S1' beneath the front flap you can start your CPU in Safe
Mode. Here the CPU starts with the following behavior:
■
The CPU goes to RUN with the default project.
■
A project can be loaded but not executed.
■
The SliceBus is switched off.
■
All field buses are disabled.
■
The parametrization memory with the current firmware version and the overlay file
system remains unchanged.
■
During online access, you are informed that the CPU is in Safe Mode.
■
The non-volatile memory for retentive data remains unchanged.
■
The CPU can only be reached via the default IP address.
■
Additionally, a memory area reserved exclusively for Safe Mode is enabled, which
allows the CPU to restart in the event of a memory overflow.
S1-2
Action
OFF
After PowerON the CPU starts in Standard
Mode - Default setting.
ER
IO ER
red
red
HB700 | CPU | PMC921xEx | en | 24-04
iC9200 Series
PN-C ER
PN-D ER
⮫ 'Firmware
IO DIAG
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