Siemens SIMATIC PG 720 PII Manual page 47

Programming device
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Caution
!
Risk of damage to EPROMs or EEPROMs!
If you insert or remove the EPROM or EEPROM while it is in use,
there is a danger that it will be damaged.
You must not remove the S5 EPROM or EEPROM while the LED
indicating that the EPROM or EEPROM is being read etc. is lit. You
cannot work simultaneously with S5 memory submodules and
memory cards.
Before inserting or removing S5 EPROMs or EEPROMs, you must
equalize the static charge on your body with the potential on the unit.
You can do this by briefly touching the metal mounting plate of the
ports on the left-hand side panel of the unit.
PG 720 PII Programming Device
C79000-G7076-C756-02
Installing and Operating the PG 720
4-13

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