Detaching The Operating Unit From The Computing Unit; Panel Pc 670 - Siemens SIMATIC PC 870 Equipment Manual

Maintenance
4.2

Detaching the operating unit from the computing unit

It may at some stage become necessary to separate the operating unit
from the computing unit, e.g. to replace the operating unit.
4.2.1

Panel PC 670

Swinging open the To swing the computing unit away from the operating unit, proceed as
computing unit follows:
1.
2.
Compu-
ting unit
Opera-
ting unit
Fig. 4-1 Swinging the computing unit away from the operating unit (viewed from above)
You can now access the connections on the rear panel of the operating
unit.
4-2
Undo the knurled screws which secure the computing unit to the
rear side of the operating unit.
Swing the computing unit away to the left, whereby the two left clips
act as hinges and thus prevent an unintentional releasing of the
computing unit:
Computing unit
Mounting rail
SIMATIC Panel PC 670 / 870 Operating Unit, Equipment Manual
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Edition 07/01