Resetting The Cpu 410 To Delivery Condition (Reset To Factory Setting) - Siemens SIMATIC CPU 410 System Manual

Special functions of the CPU 410

9.8 Resetting the CPU 410 to delivery condition (reset to factory setting)

9.8 Resetting the CPU 410 to delivery condition (reset to factory setting)
CPU factory settings
A general memory reset is performed when you reset the CPU to its factory settings and the
properties of the CPU are set to the following values:
Table 9- 2
Properties
Contents of the diagnostics buffer
IP parameters
SNMP parameters
Operating hours counter
Contents of the load memory
Procedure
Proceed as follows to reset a CPU to its factory settings:
1. Switch off the line voltage.
2. Switch on the line voltage while pressing and holding down the Reset button.
3. Wait until LED lamp image 1 from the subsequent overview is displayed. In this lamp
pattern, INTF flashes at 0.5 Hz. EXTF, BUSxF, MAINT, IFMxF, RUN, and STOP remain
unlit.
4. Wait until LED lamp image 2 from the subsequent overview is displayed. In this LED
pattern, INTF is lit. EXTF, BUSxF, MAINT, IFMxF, RUN, and STOP remain unlit.
5. The CPU performs a memory reset and the STOP LED flashes at 2 Hz.
The CPU is now reset to its factory settings. It starts up and switches to STOP operating
state or links up. The event "Reset to factory setting" is entered in the diagnostics buffer.
LED patterns during CPU reset
While you are resetting the CPU to its factory settings, the LEDs light up consecutively in the
following LED patterns:
Table 9- 3
LED
INTF
EXTF
BUSxF
MAINT
IFMxF
142
CPU properties in the factory settings
LED patterns
LED pattern 1
Flashes at 0.5 Hz
Dark
Dark
Dark
Dark
Value
Empty
None
Default values
0 without battery backup
Empty
LED pattern 2
Lit
Dark
Dark
Dark
Dark
CPU 410 Process Automation/CPU 410 SMART
System Manual, 05/2017, A5E31622160-AC