ABB AC500 PLC Hardware Manual page 1235

2.
2019/04/17
Remove the option cover.
ð Remove the option cover of the CPU totally by pushing it to the outer side.
NOTICE!
Avoidance of electrostatic charging
PLC devices and equipment is sensitive to electrostatic discharge,
which can cause internal damage and affect normal operation.
Observe the following rules when handling the system:
– Touch a grounded object to discharge potential static.
– Wear an approved grounding wrist strap.
– Do not touch connectors or pins on component boards.
– Do not touch circuit components inside the equipment.
– If available, use a static-safe workstation.
– When not in use, store the equipment in appropriate static-safe
packaging.
3ADR010121, 13, en_US
System Assembly, Construction and Connection
AC500-eCo > Handling of Accessories
1235