Siemens SIMATIC IM 151/CPU User Manual

Functions of the IM 151/CPU
5-11
ET 200S Interface Module IM 151/CPU
A5E00058783-01
Backing Up the Operating System on the MMC
To back up the operating system, proceed as follows:
Table 5-6 Backing Up the Operating System
Step Action Required What Happens in the
IM 151/CPU:
1. Insert a new micro memory card
(2 MB) in the CPU
The CPU requests a memory
reset
2. Hold the mode selector in the
MRES position.
–
3. Switch the power off then on, and
keep the mode selector in the
MRES position until... ... STOP, RUN and FRCE LEDs
start flashing
4. Move the mode selector to STOP –
5. Move the mode selector briefly to
MRES, then let it snap back to
STOP
The IM 151/CPU starts to back up
the operating system on the MMC.
All the LEDs light up during
backup.
The STOP LED flashes after the
backup has been completed. In
this way, the IM 151/CPU requests
a memory reset.
6. Remove the micro memory card -

Siemens SIMATIC IM 151/CPU Specifications

General

Brand	Siemens
Model	SIMATIC IM 151/CPU
Category	Control Unit
Language	English