Siemens 880 Manuale delle Istruzioni Pagina 125

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11 Hardware 12.93
11.2 General notes on the PLC 135 WD
11.2 General notes on the PLC 135 WD
The PLC 135 WD module is used with SINUMERIK 840C, SW 3 and higher. The functions of
the PLC CPU 135 WB2 and the interface PLC are combined on this module. The PLC system
program and user program are stored on the hard disk and are loaded onto the buffered RAM
of the PLC from where they are run.
The following interfaces and LEDs are situated on the front panel:
X111
X121
X131
X141
LED green: cyclic operation
LED red: PLC in STOP state
Error messages are displayed by different LED flashing patterns
(see Section 6)
LED for IF PLC, red and green:
Error messages are displayed by different LED flashing patterns
(see Section 6)
LEDs for PLC
RS 232 C/TTY interface
RS 422 (via adapter)
Interface for PG 710, PG 730, PG 750 or for MMC CPU
Serial2 (SW3 and higher)
6FC9 344-4R
RS 485/MPC interface
6FC9 344-3S or 6FC9 344-5N
RS 485/MPC interface
6FC9 344-3S or 6FC9 344-5N
8 interrupt inputs
6FC9 344-5M
Notes:
The bootstrap EPROMs are situated on the module.
See also INTERFACE DESCRIPTION PART 2 - CONNECTION CONDITIONS on how to
use the interfaces.
11–4
© Siemens AG 1992 All Rights Reserved 6FC5197- AA80
SINUMERIK 840C/880 (PJ)
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