Siemens SIMATIC PC 670, Руководство по эксплуатации оборудования

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Maintaining and Extending the Computing Unit
Release 04/02
4-2
Panel PC 670 Computing Unit, Equipment Manual
4.1 Opening the Unit
4.1.1 Conditions
The device is designed for easy maintenance so that any work that may be
necessary can be done quickly and economically.
Caution
The electronic components on the printed circuit boards are extremely sensitive to
electrostatic discharge. Certain precautionary measures are therefore necessary
when handling such components. These measures are explained in the guidelines
for electrostatic sensitive devices at the end of this manual (ESD Guidelines).
Restricted liability
All technical specifications and approvals apply only to expansion modules
approved by Siemens AG.
No liability can be accepted for impairment of functions caused by the use of
non-Siemens devices or non-Siemens components.
All the modules and components are electrostatically sensitive. Please observe the
ESD notes. The following symbol indicates that electrostatically sensitive modules
are present.