PLC data
The SIMATIC S7-PLC integrated in the SINUMERIK NCU is derived from a SIMATIC S7-CPU. In some
cases, the technical data deviate. You can take these deviations from the following table:
CPU317F-2 PN/DP PLC 317-3 DP/PN PLC 317-3 DP/PN
PLC rmware v3.2 v3.2 v3.2+
PROFIBUS interfaces 1 2 2
Number of DP1/DP2
slaves
124 (only DP1) 124 (DP1 + DP2) 124 (DP1+DP2)
Retentive memory 256 KB 512 KB 512 KB
Load memory max. 8 MB 2 MB (virtual) 2 MB (virtual)
PN I/O and CBA device ID 2 4 4
Number of PN I/O devi‐
ces
256 128 128
I/O restrictions 8192 / 8192 5700 / 5700 10240 / 10240
Process image size 0 ... 8192 0 ... 4079 bytes 0.. 12288 byte
CPU319F-3 PN/DP PLC 319-3 DP/PN
Load memory max. 8 MB 8 MB (virtual)
PN I/O and CBA device ID 3 4
Retentive memory 512 KB 700 KB
I/O restrictions 8192 / 8192 10240 / 10240
4)
Process image size 0 ... 8192 0.. 12288 byte
4)
Can be manually expanded, drives > 10240, shift / adapt MD
You can nd a detailed description of the PLC data online in the service & support portal of
Siemens AG:
http://support.automation.siemens.com/WW/view/de/54058408
Technical data
NCU 7x0.3B PN
86 Equipment Manual, 10/2020, 6FC5397-1EP40-6BA1
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