Siemens SIMATIC HMI series Operating Instructions Manual page 91

NOTICE
Grounding measures
There is no equipotential bonding without grounding. An electrostatic charge is not
discharged and may damage the ESD.
Protect yourself against discharge of static electricity. When working with electrostatic
sensitive devices, make sure that the person and the workplace are properly grounded.
Protective measures against discharge of static electricity
● Disconnect the power supply before you install or remove modules which are sensitive to
ESD.
● Pay attention to good grounding:
– When handling electrostatical sensitive devices, make sure that persons, the
● Avoid direct contact:
– As a general rule, do not touch electrostatic sensitive devices, except in the case of
– Hold the modules at their edge so that you do not touch the connector pins or
– Discharge your body electrostatically before you take a measurement at a module. Do
IFP, IFP PRO, IFP ETH
Operating Instructions, 11/2017, A5E31298376-AH
workstation and devices, tools and packaging used are properly grounded. This way
you avoid static discharge.
unavoidable maintenance work.
conductor paths. This way, the discharge energy does not reach and damage the
sensitive components.
so by touching grounded metallic parts. Always use grounded measuring instruments.
Technical information
7.2 Directives and declarations
91