Technology CPUs of the S7-300 - PLC Training Courses and PLC ...

Technology CPUs of the S7-300
The smart PLC solution for technology
and motion control tasks
Product Brief • March 2005

Cost reduction benefits
Combination of PLCs, motion control and drives
Machine and plant builders have in recent years been confronted
by the growing challenge of having to offer
increasingly flexible and more productive machines
against a background of falling prices. This has resulted in
a sharp increase in cost-optimized mechatronic solutions
for new designs. More and more rigid line shafts are therefore
being replaced by separately driven axes.
This extends the range of automation tasks in the wide area of
motion control and also in connection with technological
applications. At the same time, automation systems with
more and more power and resources are being used.
So why not use the automation system for all motion control
tasks as well?
Siemens’ answer to this question: automation and drive systems
are continuously expanded with technological functions
focusing on motion control.
This combination of PLC functions and motion control is supplemented
by drives with PROFIBUS connectivity. Result: an
innovative state-of-the-art solution for automation and
drives. In addition to the technological advantages, such a
combination also provides costs benefits.
The range of Totally Integrated Automation now also includes
a SIMATIC CPU with integral motion control functionality.
Users thus profit from the experience and global service provision
of the market leader and from the quality of SIMATIC
systems and products.
This forms the basis for boosting profits and improving competitiveness
with innovative automation solutions.
The integration of technology and motion control in a SIMATIC
Technology CPU offers you the following benefits:
Reduction of investment costs
Thanks to its integrated functionality, use of the S7-300 Technology
CPUs saves on the acquisition of additional intelligent
function modules (FMs) for technological tasks or motion control.
In multi-axis applications in particular, this reduces acquisition
costs and results in significant savings in storage costs
because the number of spare parts decreases.
And use of a Technology CPU results not least in space savings
in the rack, and consequently in a potentially smaller control
cabinet.
2 SIMATIC technology CPU
Reductions in engineering costs
The Technology CPUs are standard
SIMATIC CPUs so existing S7-300
programs can be easily taken over.
There is only one SIMATIC S7 user program
for the usual PLC functions and
the motion control tasks. This reduces
the number of interfaces and cuts the
programming overhead.
There are also additional startup tools
available for motion control (e.g. realtime
trace) alongside the field-proven,
powerful SIMATIC diagnostics functions.
Reductions in training costs
The entire configuration – from the
drives, through motion control, right
up to the PLC – is carried out with
STEP 7.
Technology CPU with integral
motion control functionality
The familiar STEP 7 languages (LAD, FBD, STL) are used here
and, optionally, all Engineering Tools (for example, S7-SCL,
S7-GRAPH, CFC). There is no need for time- and cost-intensive
learning of an additional programming language for the
motion control tasks. Existing S7 programming know-how
can therefore be used, removing any barriers to getting
started.
The complete configuration of the technology is handled via
simple, user-friendly dialogs. All the necessary settings are
made there, for example the mechanical data, the selection of
the drive, and the controller settings. This saves time and also
makes entry easier for the first-time user with no system
knowledge.
The motion control blocks of the Technology CPUs correspond
to the specification of PLCopen (Task Force Motion Control).
They are therefore based on an international standard and
facilitate engineering and service.

Use in PLC and motion control tasks
For many years, SIMATIC S7-300 has been the proven system
for solving the most varied automation tasks. Many satisfied
users in various sectors confirm this success:
•Manufacturing
• Automobile industry
• General mechanical equipment manufacture
• Special mechanical equipment manufacture
• Standard mechanical equipment manufacture
(production machinery of all types), OEMs
• Plastics processing
• Packaging industry
• Food, beverages and tobacco industries
• Process engineering
(for example, water supply, building systems)
The Technology CPUs 315T-2DP or 317T-2DP have the same
functionalities as the powerful standard CPUs 315-2DP or
317-2DP.
The micro memory card, for example, permits maintenancefree
operation without backup battery and simplifies program
updating. The micro memory card also provides support in
service assignments because it can accommodate a complete
project including symbols and comments, as well as all the
parameters.
The Technology CPUs also integrate technological functions,
such as high-speed I/O for technological functions, opening
up a variety of new applications for S7-300 programmable
controllers. They are used above all in machines demanding
both high PLC performance and motion control functions, for
example in
• processing lines/assembly lines,
• continuous machines,
• filling,
• wrapping,
• flying shears,
• carton assemblers,
• labeling machines,
•roll feed,
• simple gantries without interpolation.
The Technology CPUs are particularly suitable for coupled
motional sequences of several axes.
In addition to exact single-axis positioning, it is primarily possible
to carry out complex, synchronized motional sequences
such as linking to a virtual or real master, gearbox synchronism,
cam disc and print mark correction.
The isochronous PROFIBUS also enables control of high-speed
and time-critical processes in the case of distributed axes in
synchronous operation applications, for example.
Synchronized sequences:
Motion control in the beverage industry
3

Connecting the SIMATIC and drives components
The Technology CPUs have two integral PROFIBUS interfaces:
• MPI/DP interface, parameterizable as MPI or DP interface
(master or slave)
• DP(DRIVE) for connecting drive components – also with isochronous
characteristics
The MPI/DP interface is used for connecting further SIMATIC
components, for example, PG, OP, S7 controllers, and distributed
I/O.
When operated as a DP interface, extensive networks can be
established.
The DP(DRIVE) interface has been optimized for connecting
drives via PROFIBUS – all important Siemens drives are supported.
The isochronous mode response means high-quality
handling of fast processes is also possible.
All these features result in a powerful system consisting of a
PLC with extensive motion control functions and powerful
drives connected to PROFIBUS in distributed configurations.
The extremely fast Technology CPUs also have local
inputs/outputs (4 DI, 8 DO) for technological functions, such
as BERO or cam. The local inputs and outputs can also be used
to a limited extent for the S7 user program.
Components supported for technological functions on the
PROFIBUS DP(DRIVE)
Speed axes MICROMASTER 420/430/440 and
COMBIMASTER 411
4 SIMATIC technology CPU
SIMOVERT MASTERDRIVES VC
Positioning/synchronized axes SIMODRIVE 611 universal HR
SIMOVERT MASTERDRIVES MC
SIMODRIVE POSMO CD/SI/CA
SINAMICS S 120
Other PROFIBUS nodes PROFIBUS DP sensors
SIMODRIVE isochronous sensors
Analog drives interface module ADI 4
TM15/17 terminal module with
SINAMICS CU 320 1)
ET 200M with IM 153-2 High Feature
ET 200S with IM-151-1 High Feature 1)
1 ) With S7-Technology V2.0 or higher, resolution down to 1 µs
(for details, see manual on CPU 31xT technology functions)
MICRO-
MASTER
DP/MPI
isochronous
Technology CPU
DP(DRIVE)
SIMODRIVE
sensor
isochrone SIMODRIVE MASTERDRIVES SINAMICS
Connecting components to the Technology CPU via PROFIBUS MPI/DP and
PROFIBUS DP(DRIVE)

Configuring
STEP 7 and S7-Technology optional package
The Technology CPUs are configured and programmed
fully in STEP 7 and using the S7-Technology optional package.
No special motion control language is required.
The entire hardware configuration, including the creation of
subnets on the two interfaces MPI/DP and DP(DRIVE) and the
selection of the desired drives components, is carried out
using HW Config.
The S7-Technology optional package that integrates into
STEP 7 following installation is required for parameterizing
and programming the technology.
S7-Technology is used for parameterizing the technological
objects such as axis, cam plate, cam, and measuring input.
This parameterization is carried out intuitively in dialog boxes
specially provided for the purpose.
The user-related data of the technological objects are stored in
data blocks and can be scanned in the S7 user program.
S7-Technology also contains a library with PLCopen-compliant
standard function blocks for programming the actual motion
control tasks.
Configuring an axis using intuitive dialogs
Real-time trace for high-speed startup and optimization of the drive
As with all SIMATIC CPUs, the STEP 7 languages LAD, FBD, STL
and all Engineering Tools such as S7-SCL or S7-GRAPH are
available for creating the user program. This applies both to
the pure control functionality as well as to the motion control
tasks. The standard FBs listed above are simply called up from
the motion control library in the STEP 7 program and parameterized.
For diagnostics purposes, S7-Technology also offers a control
panel and a real-time trace in addition to the usual SIMATIC
diagnostics functions. This allows reductions in the time
required for startup and optimization.
5

Programming
Motion control functions
PLC-open-compliant standard function blocks (FBs) are
available for programming the motion control functions.
These FBs comply with this international standard in interface,
function, and execution. The result is reduced overhead
for engineering, startup, and service.
These standard FBs take up very little CPU work memory in use
because they are integrated direct in the firmware.
Application areas
Controlled positioning
Gearbox synchronism
Electronic cam plate
Print mark correction
using measuring input
Path or time-dependent cam
sequencing
Travel to fixed stop
6 SIMATIC technology CPU
Call-up of a standard function block for motion control
in the user program
Blocks for the Technology CPU
Block group Block name Block group Block name
Basic
MC_ReadSysParameter Superim- MC_CamInSuperImposed
functions MC_Reset
MC_WriteParameter
posedsynchronous functions
MC_CamOutSuperImposed
MC_GearInSuperImposed
Single-axis MC_ChangeDataset MC_GearOutSuperImposed
functions MC_Halt MC_PhasingSuperImposed
MC_Home Cam plate MC_CamClear
MC_MoveAbsolute functions MC_CamInterpolate
MC_MoveAdditive MC_CamSectorAdd
MC_MoveRelative MC_GetCamPoint
MC_MoveSuperImposed Miscella- MC_CamSwitch
MC_MoveToEndPos
MC_MoveVelocity
neous
functions
MC_CamSwitchTime
MC_ExternalEncoder
MC_Power MC_MeasuringInput
MC_SetTorqueLimit I/O functions MC_ReadPeriphery
MC_Stop MC_ReadRecord
Synchronous MC_CamIn MC_WritePeriphery
functions MC_CamOut MC_WriteRecord
MC_GearIn
MC_GearOut
MC_Phasing
Drive
functions
MC_ReadDriveParameter
MC_WriteDriveParameter

Technical specifications
CPU 315T-2 DP, CPU 317T-2 DP
Technical specifications 315T-2DP 317T-2DP
Memory
Work memory
• Integrated (KB)
128 KB
512 KB
corresponding to number of
statements
42 K
170 K
• Expandable No
Load memory via micro memory card
(always required)
Min. 4 MB, max. 8 MB
Retentive memory
(for retentive DBs)
Execution times
All blocks up to 256 KB
• Bit operation, typ. 0.10 µs 0.05 µs
• Word operation, typ. 0.20 µs
• Fixed-point arithmetic, typ. 2.0 µs 0.20 µs
• Floating-point arithmetic, typ.
Counters, timers, bit memories
3.0 µs 1.00 µs
• S7 counters 256 512
• IEC counters ✓
• S7 timers 256 512
• IEC timers ✓
• Bit memories 16,384 (M0.0 to 32,768 (M0.0 to
Blocks
2047.7) 4095.7)
• Total (DBs, FCs, FBs) 1024 2048
• Number bands 2048 FC, 2048 2048 FC, 2048
FB, 1023 DB FB, 2047 DB
• OBs Free cycle (OB1)
Time-of-day interrupt (OB10)
Time-delay inter- Time-delay interrupt
(OB20) rupt (OB20, 21)
Time interrupt Time interrupt
(OB35)
(OB32-35)
Process interrupt (OB40)
DPV1 interrupts (OB55-57)
Technology sync interrupt (OB65) 1)
Initial start (OB100)
Asynchr. error (OB80, 82, 85-87)
Synchr. error (OB121, 122)
Address areas (inputs/outputs)
• Total I/O address area, max.
(freely addressable)
2 KB/2 KB 8 KB/8 KB
• Process I/O image 128/128 256/256
• Digital channels, max. 16,384/16,384 65,536/65,536
• of which central, max. 256/256
• Analog channels, max. 1024/1024 4096/4096
• of which central, max.
Expansion
64/64
• Subracks, max. 1
• Modules per subrack
Number of DP masters
8
• Integrated 2
• via CP 2
N N
315T-2DP
Suitable function modules and communications processors
317T-2DP
• FMs, max. 8
• CPs (point-to-point), max. 8
• CPs (LAN), max.
1st interface
10
• Type of interface Integral RS 485 interface
• MPI ✓
• PROFIBUS DP ✓ (master or slave)
• Data transfer rates Up to 12 Mbit/s
• Equidistance ✓
• Activate/deactivate
DP slaves
✓
• Internode communication ✓
• Number of DP slaves per line
2nd interface
124
• Type of interface Integral RS 485 interface
• PROFIBUS DP(DRIVE) ✓
• Equidistance ✓
• Internode communication ✓
• Data transfer rates Up to 12 Mbit/s
• Number of DP slaves per line
Integral functions
32
• Gearbox synchronism and
camming
✓
• Travel to fixed stop ✓
• Print mark correction using
measuring input
✓
• Path or time-dependent cam
sequencing
✓
• Position control ✓
Maximum quantity structure Technology
• Axes 8 32
• Cam plates 16 32
• Cams 16 32
• Measuring inputs 8 16
• External encoders 8 16
Simultaneous use
Integral inputs/outputs
32 64
• Digital inputs 4, 24 V DC, for BERO evaluation
• Digital outputs
Dimensions
8, 24 V DC, 0.5 A, for high-speed cam
sequencing functions
• Installation dimensions W x H x D
(mm)
160 x 125 x 130
• Required front connector
Ordering data
1 x 40-pin
• CPU 315T-2 DP 6ES7315-6TG..
• CPU 317T-2 DP 6ES7317-6TJ..
• S7-Technology V 2.0 6ES7864-1CC2.
1 ) With 317T-2DP from firmware version V2.3/V3.1 onwards
7

More info on SIMATIC Technology?
Quite simple!
0 08 00/74 62 84 27
Please check your choice:
SIMATIC Technology
Counting/Measuring with SIMATIC
Positioning with SIMATIC
Closed-loop Control with SIMATIC
Cam Control with SIMATIC
SIMATIC FM 458-1 DP in S7-400®
You can find more detailed information in
the SIMATIC Guide documentation:
You can order further documents on the
topic of SIMATIC at:
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near you, look in the Internet under:
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electronically using the Internet:
Siemens AG
Automation and Drives
Postfach 4848
90327 NÜRNBERG
FEDERAL REPUBLIC OF GERMANY
www.siemens.com/t-cpu
Order No.: 6ZB5310-0LM02-0BA3
Printed in the Federal Republic of Germany
26100/501435 KB 0505 4. ROT En
If you'd like more information about SIMATIC
Technology, we can offer you two possibilities:
· Click on our Internet link:
www.siemens.com/simatic-technology
and you can preview or download brochures.
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© Siemens AG 2005
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names of Siemens AG or supplier companies whose use
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agreed in the terms of contract. Availability
and technical specifications are
subject to change without notice.
The information provided in this brochure
contains descriptions or characteristics
of performance which in case of
actual use do not always apply as described
or which may change as a result
of further development of the products.