SIMATIC S7-400.pdf

The highest performance for

innovative machines and plants

The new S7-400 CPUs

S7-400

If you want to leave competitors behind, you have to reliably meet the ever more sophisticated

requirements of your customers – with cost-effective solutions. For this, you can use the S7-400,

because with our innovated high-performance PLC, even ambitious aims can be achieved with

little overhead. You can integrate a host of new functions, for example, and boost the production

power of your machines or plants.

All seven CPUs of the SIMATIC® S7-400 range offer three times the processing power and 50 %

more communications power of the predecessor models. Complex arithmetic commands are pro-

cessed up to seventy times faster. And thanks to upward compatibility, you can use the new CPUs

immediately – without having to adapt your existing user programs or design documentation.

simatic

Powerful solutions for your machines and plants –

in the manufacturing and process industries

The SIMATIC S7-400 has been opti-

mized both for manufacturing and

process engineering. That’s why our

high-performance PLC can be used

system-wide for all areas of the pro-

duction chain. Our range encom-

passes seven graded CPUs, allowing

you to implement solutions that are

perfectly tailored to the sub-tasks in

hand. Thanks to a huge increase in

performance power, the new CPUs

also enable the integration of new

functions and higher machine cycle

rates – without additional PLC hard-

ware costs.

ticular have been accelerated. These

can now be solved without the need

for additional function modules. The

high processing speed here applies

equally for all operations and not

just for individual commands. In

other words, the high-performance

SIMATIC S7-400 CPU can be used

for any application you like.

50% more communications power

The SIMATIC S7-400 is typically used

as the central coordination station

in plants and as a data hub linked to

several communications lines. In

conjunction with the new CP 443-1

Advanced communications processor

with integral 4-port switch, the higher

data throughput supports powerful

vertical integration and high-speed

PLC-PLC communication via PROFINET/

Industrial Ethernet. The field level too

is efficiently connected: halved res-

ponse times enable shorter cycles

down to 1 ms in isochrone operation,

in order, for example, to control fast

running machines via PROFIBUS.

More memory,

timers and counters

Along with their high processing and

communications power, our CPUs

feature impressive work memories,

increased to a maximum of twenty

megabytes. The number of available

timers and counters is now so high on

all CPUs as to be sufficient for any

application in any case. You can exploit

this increase in power to give your

programs a modular structure, or to

equip your machines and plants with

additional functions for, say, acquiring

and archiving quality data, perform-

ing user-friendly process diagnostics,

or integrating into higher-level MES

solutions (manufacturing execution

systems).

Processing times up to

seventy times faster

The SIMATIC S7-400 is the first choice,

particularly in the high-end perfor-

mance range that is dominated by

complex arithmetic functions such as

trigonometric functions. The innovat-

ed CPUs stand out for their instruction

execution times which are now three

to seventy times faster. Arithmetic

instructions for data processing and

closed-loop control tasks in par-

CPU 412-1 CPU 412-2 CPU 414-2 CPU 414-3 CPU 416-2 CPU 416-3 CPU 417-4

Work memory

144 KB

256 KB

512 KB

1.4 MB

2.8 MB

5.6 MB

20 MB

Instruction execution time

• Fixed-point addition

0.1 µs

0.06 µs

0.04 µs

0.03 µs

• Floating-point multiplication 0.3 µs

0.3 µs

0.18 µs

0.12 µs

0.09 µs

• Complex

1.7 up to

1.02 up to

0.68 up to

0.51 up to

arithmetic functions

7.8 µs

4.68 µs

3.12 µs

2.3 µs

Operands

• S7 counters

2048

• S7 timers

2048

• Bit memories

4 KB

8 KB

16 KB

Integrated interfaces

• 1st interface

–

MPI / DP (master)

Plug-in

interface modules

–

DP (master) –

DP (master) 2 x DP (master)

Digital channels

Sufficient for all applications

Analog channels

2048

4096

8192

Siemens AG

Automation and Drives

www.siemens.com/simatic-s7-400

SIMATIC® is a registered trademark

of Siemens. Other designations used

in this publication may be trademarks

whose use by third parties for their

own purposes could violate the rights

of the owners.

Order No. E20001-A470-P210-X-7600

Printed in Germany

41C8609 MK.AS.CO.52.4.10 SB 06043.

Subject to change without prior notice

• 2nd interface

DP (master)

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