Description; Features; Illustration - Siemens SINUMERIK 840D sl Manual

Description

4.1

Features

A Control Unit contains the following interfaces and modules:
● Battery-backed SRAM for persistent data storage
● Battery-backed real-time clock
● PROFIBUS interfaces
● Ethernet ports
● PROFINET interfaces for NCU 720.2 PN and NCU 730.2 PN
● Slot for a CompactFlash Card
● DRIVE-CLiQ interfaces
● Digital inputs/outputs (6 of which can be parameterized as inputs for probe and BERO)
● 3 analog test sockets
4.2

Illustration

Control Units without PROFINET
The following figure shows an NCU 720.1/730.1/730.2 with its interfaces and control and
display elements (fault LEDs and status indicators). Please ensure that the structure of the
NCUs is virtually identical. There are only a few discrepancies, as follows:
● The NCU 710.1 has 4 rather than 6 DRIVE-CliQ interfaces.
● Deviations with NCU 710.2 and NCU 720.2:
NCU
Manual, 07/2007, 6FC5397-0AP10-2BA0
– No cooling fins
– Layout of control and display elements behind the blanking plate (see Chapter
Position of operator control and display elements (Page 35))
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