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Appendix
A.2 Certificates, approvals & guidelines
License agreement for supplied software
The device is supplied with software installed. Please note the corresponding license
agreements.
A.2.2
ESD Guidelines
Definition of ESD
All electronic modules are equipped with large-scale integrated ICs or components. Due to
their design, these electronic elements are highly sensitive to overvoltage, and thus to any
electrostatic discharge.
The "electrostatic sensitive components/modules" are commonly referred to as "ESD".
"ESD" is the international abbreviation for "electrostatic sensitive devices".
Electrostatic sensitive modules are identified by the following
symbol:
NOTICE
Voltage can destroy ESD
ESD devices can be destroyed by voltages well below the threshold of human perception.
Such voltages occur if you touch a component or electrical connectors of a module without
first discharging the static from your body. The electrostatic discharge current may lead to
latent failure of a module, that is, this damage may not be significant immediately, but in
operation may cause malfunction.
Electrostatic charging
Anyone who is not connected to the electrical potential of their surroundings can be
electrostatically charged.
The figure below shows the maximum electrostatic voltage which may build up on a person
coming into contact with the materials indicated. These values correspond to IEC 801-2
specifications.
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Operating Instructions, 05/2019, C79000-G8976-C494-02
SIMATIC MV500
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