Nck I/O Via Profibus - Only 840D Sl - Siemens SINUMERIK 840D sl Function Manual

1.4.2

NCK I/O via PROFIBUS - only 840D sl

System
The function is available in the SINUMERIK 840D sl system for isochronous and non-
isochronous configured PROFIBUS-I/Os.
Hardware
● The required PROFIBUS-I/O must be available and ready to use.
● A correct S7-HW-configuration (PLC-side) must be done of the required PROFIBUS-I/O
● An I/O range must be present on the same PROFIBUS-slave.
● Only the PROFIBUS-slaves at the first real PROFIBUS-strand of the PLC (plug with the
Software
● The NCK must be configured correctly via the corresponding machine data.
● A simultaneous writing of the PROFIBUS-I/O from a PLC-application program is not
● I/O ranges for the write access (MD10510 $MN_DPIO_LOCIG_ADDRESS_OUT[]) to the
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
and loaded in the PLC.
identification DP1) are supported.
permitted and cannot be prevented technically.
PROFIBUS-I/O may not lie in the I/O mapping range of the PLC (e.g. PLC 317,
addresses from 0 - 255), since this range is used by the PLC-operating system.
A4: Digital and analog NCK I/Os
1.4 Constraints
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