Siemens SIMATIC RI 45 PIII Series, Manual

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1-5
RI 45 PIII, Manual
C79000-G7076-C817-01
1.3 Removing and Installing Components
The system unit is designed to enable any necessary maintenance work to be
carried out quickly and at low cost.
!
Warning
Please read the warnings at the front of the User’s Guide before you open the
housing of the system unit.
Do not open the housing unless you need to install or remove
components, or to replace the battery.
Write down your configuration parameters.
Disconnect the unit from the power supply by unplugging the power plug.
!
Caution
Risk of damage to the unit!
Note that only qualified personnel should be allowed to work on the open unit,
so the warranty on the device is not affected. Authorized Siemens maintenance
and repair centers offer you a specialist maintenance service. The User’s Guide
contains the addresses.
!
Caution
The electronic components of the printed boards are extremely sensitive to
electrostatic discharge. When handling the boards, you must follow the
guidelines for electrostatically-sensitive components (ESD guidelines) at the
end of this manual.
All technical specifications and licenses apply only to expansion functions
approved by SIEMENS. No liability can be assumed for functional
constraints caused by the use of devices and components of other
manufacturers.
All modules and components in the PC are electrostatically sensitive. Please
read the ESD guidelines. The following sign warns that electrostatically-
sensitive modules are present.
Requirements
Limitation of
Liability
System Unit