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Siemens AG 2001 All Rights Reserved 6FC5197–jAA50
3-1
SINUMERIK 840C (IA)
3 PLC Installation
3.1 General remarks
PLC CPU versions Three different PLC CPU versions can be used in the SINUMERIK 840C:
S PLC CPU 135 WB2 with interface PLC and EPROM submodules for the ope-
rating system and the user program (the operating system and the user pro-
gram are loaded from EPROM into RAM, up to software version 2 only)
S PLC CPU 135 WB2 with interface PLC and RESTART EPROM submodule
(as from software version 3, the operating system and the user program are
loaded from hard disk into RAM)
S PLC CPU 135 WD without interface PLC (as from software version 3, the ope-
rating system and the user program are loaded from hard disk into RAM)
Connection of the
programming device
PG 7 ...
(S5 PLC)
(COM1 RS 232 C/
MODEM)
Interface PLC
or PLC 135 WD
PG function via
MMC
Link to X111 inter-
face which is al-
ways active
Cable 6FC9 340–8W
link X151
Cable 6FC9 340–4R
Fig. 3.1
Note Only PG 7 ... programming devices may be used with the SINUMERIK 840C for
programming and servicing the PLC.
3 PLC Installation
3.1 General remarks
09.95
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