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Installing 505 System Hardware SIMATIC 545/555/575 System Manual
3.8 Installing the 545/555 CPU
The second slot from the left (beside the power supply module) is reserved in
Series 505 bases for the CPU or RBC, as shown in Figure 3-7.
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Figure 3-7 Location of CPU/RBC in a Series 505 Base
Refer to Figure 3-8 and follow the steps below to install the 545/555 CPU.
!
WARNING
Installing or removing a CPU from a powered-up base disrupts your process.
Disruption of your process can cause death or serious injury to personnel,
and/or damage to equipment.
Ensure that all power is disabled before installing or removing the CPU.
1. Disconnect power to the base.
2. Position the CPU so that the bezel is facing you.
CAUTION
Electronic equipment is sensitive to, and can be damaged by, electrostatic
discharge.
Ensure that personnel make contact with a static-dissipative pad and/or wear a
grounded wrist strap when handling the CPU cards or modules.
3. Grasp the top and bottom of the CPU module.
CPU/RBC Location
in a Base
Installing and
Removing the CPU
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