
SIMATIC S7-400
Central processing units
Standard CPUs
CPU 416
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Siemens ST 70 · 2013
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Technical specifications (continued)
Data areas and their retentivity
Flag
•Number, max. 16 kbyte; Size of bit memory address
area
16 kbyte; Size of bit memory address
area
16 kbyte; Size of bit memory address
area
Address area
I/O address area
• Inputs 16 kbyte 16 kbyte 16 kbyte
•Outputs
16 kbyte 16 kbyte 16 kbyte
Process image
• Inputs, adjustable 16 kbyte 16 kbyte 16 kbyte
• Outputs, adjustable
16 kbyte 16 kbyte 16 kbyte
Time of day
Clock
• Hardware clock (real-time clock) Yes Yes Yes
Operating hours counter
•Number 16 16 16
1st interface
Type of interface integrated integrated integrated
Physics RS 485 / PROFIBUS + MPI RS 485 / PROFIBUS + MPI RS 485 / PROFIBUS + MPI
Functionality
•MPI Yes Yes Yes
•DP master
Yes Yes Yes
•DP slave
Yes Yes Yes
DP master
• Number of DP slaves, max. 32 32 32
2nd interface
Type of interface integrated integrated PROFINET
Physics RS 485 / PROFIBUS RS 485 / PROFIBUS Ethernet RJ45
Number of ports
2
Functionality
•DP master Yes Yes No
•DP slave
Yes Yes No
• PROFINET IO Controller
Yes
• PROFINET IO Device
Yes
• PROFINET CBA
Yes
DP master
• Number of DP slaves, max. 125 125
PROFINET IO Controller
• Max. number of connectable
IO devices for RT
256
• Number of IO devices with IRT and
the option "high flexibility"
256
• Number of IO Devices with IRT and
the option "high performance", max.
64
3rd interface
Type of interface Pluggable interface module (IF),
technical data as for 2nd interface
Pluggable interface module (IF)
Plug-in interface modules
IF 964-DP
(MLFB: 6ES7964-2AA04-0AB0)
IF 964-DP
(MLFB: 6ES7964-2AA04-0AB0)
Physics
RS 485 / PROFIBUS RS 485 / PROFIBUS
Functionality
•MPI No No
•DP master
Yes Yes
•DP slave
Yes Yes
DP master
• Number of DP slaves, max. 125 125
6ES7 416-2XN05-0AB0 6ES7 416-3XR05-0AB0 6ES7 416-3ES06-0AB0
CPU 416-2 CPU 416-3 CPU416-3 PN/DP
Kap_06_eng.book Seite 14 Donnerstag, 2. Mai 2013 4:16 16
© Siemens AG 2013
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