Functions of the IM 151/CPU
5-10
ET 200S Interface Module IM 151/CPU
A5E00058783-01
Firmware Update with MMC
To update the firmware, proceed as follows:
Table 5-5 Firmware Update with MMC
Step Action Required What Happens in the
IM 151/CPU:
1. Transfer update files to a blank
MMC using STEP 7 and your
programming device.
-
2. Deenergize the IM 151/CPU and
insert the MMC with the FW
update
-
3. Switch the power on The IM 151/CPU automatically
detects the MMC with the FW
update and starts the FW update.
All the LEDs light up during the
FW update except the FRCE LED.
The STOP LED flashes after the
FW update has been completed.
In this way, the IM 151/CPU
requests a memory reset.
4. Deenergize the IM 151/CPU and
remove the MMC with the FW
update
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