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SIMATIC
Micro PLC
SIMATIC S7-200
General
2
CPUs
5
Digital expansion modules
19
Extract from Catalog ST 70
Edition September 2000
Analog expansion modules
24
Supersedes:
Extract SIMATIC S7-200 from Catalog ST 70,
Edition August 1999
Communication modules
32
Power supplies
35
Human Machine Interface
The products listed in this catalog
are also available from
the CD-ROM Catalog CA 01.
Order No.:
E86060-D4001-A100-B4-7600
36
SIMATIC Industrial Software
40
For further information
contact your local
Siemens representative
Configuring forms
46
Summary of ordering data
52
The products and systems
described in this catalog are sold
under application of a quality
management system certified
by DQS in accordance with
DIN EN ISO 9001 (Certificate
registration No.: 1323-03).
The DQS Certificate is re-
cognized in all EQ Net countries
(Reg. No.: 1323).
Appendix
56
SIMATIC S7-200
General
SIMATIC S7-200
n
Overview
• The micro PLC that offers
maximum automation at
minimum cost
• Highly integrated, space-
saving, powerful
• Can be used both for simple
controls and for complex
automation tasks
• In stand-alone mode, in
networks and within
distributed structures
• Suitable for applications
where programmable
controllers would not have
been viable in the past
• W ith outstanding real-time
performance and powerful
communication (PPI,
PROFIBUS-DP, AS-
Interface)
• Extremely simple
installation, programming
and operation
n
The SIMATIC
®
S7-200
®
is a
micro PLC for open-loop and
closed-loop control tasks in
mechanical engineering and
plant engineering. It
combines maximum
automation with minimum
cost.
SIMATIC S7-200 applications
range from replacing relays
and contactors to handling
complex automation tasks in
stand-alone mode, in
networks and within
distributed configurations.
To save costs, the S7-200 is
increasingly being employed
in areas that previously
required special electronics.
Application
Applications include:
• Baling presses
• Plaster and cement mixers
• Ventilation plants
• Centralized/flange lubri-
cating systems
• W oodworking machinery
• Gate controls
• Hydraulic lifts
• Conveyor systems
• Food and beverage industry
• Laboratories
• Modem applications
(remote monitoring)
• Electrical installations
The S7-200 features:
• Easy to learn, with special
starter packages and
manuals
• Uncomplicated operation;
powerful, easy-to-use
standard instructions and
user-friendly programming
software reduce
programming to a minimum
• Unequaled real-time
features; interrupt functions,
high-speed counters and
pulse outputs permit
application in time-critical
processes
• Powerful communication
capabilities; the integrated
PROFIBUS-DP interface in
particular enables the S7-
200 to maximize its
performance in distributed
automation solutions.
2
Micro PLC SIMATIC S7-200
September 2000 Extract from Siemens Catalog ST 70
SIMATIC S7-20
General
n
Design
The SIMATIC S7-200 family
consists of the following
modules:
• 4 different basic units in
different variants
• 14 digital and analog
expansion modules
• 2 communications modules
for connecting to PROFIBUS
and AS-Interface
Mechanical features
• Rugged, compact plastic
housing
• Easily accessible wiring and
operator control elements
protected by front covers
Design features
• International standards; the
SIMATIC S7-200 meets the
requirements through
compliance with VDE, UL,
CSA and FM (Class I,
Division 2, hazardous area
groups A, B, C and D, T4A)
standards. The quality
management system used
during manufacturing has
ISO 9001 certification.
n
Communication
The SIMATIC S7-200 offers
various communication
capabilities:
• Point-to-point interface; can
be operated in PPI, MPI
(slave) mode and in user-
programmable interface
mode
• AS-Interface connection; as
master via the CP 243-2
communication processor
• Connection to PROFIBUS-
DP as slave; via the
PROFIBUS-DP module
EM 277
PPI network
PPI is the communications
system integrated in every S7-
200 CPU. Connections for pro-
gramming or for human machi-
ne interface functionality can
be established over a shared
twisted-pair cable. The CPUs
can communicate with several
other CPUs, TDs or OPs
simultaneously
The data transfer rate is 9.6/
19.2/187.5 kbit/s. The
following can be connected:
• PG 720PII, PG 740PIII,
PC RI45 PIII Tower
programming devices
• PCs (AT-compatible), via PC/
PPI cable
• TD 200 text display; SIMATIC
OP operator panels
• SIMATIC S7-200; up to 31
S7-200s can be operated on
a shared data bus with a
programming device, PC, TD
200 or OP. Direct data ex-
change between S7-200
controllers (in each case as a
master) with the NETR and
NETW commands.
MPI network
All CPUs can be connected to
an MPI network (19.2/187.5
kbit/s) via the integrated
interface and can then
communicate with SIMATIC
S7-300
®
s/S7-400
®
s. The S7-
200 CPUs are slaves in the
MPI-network and cannot
communicate with each other.
PPI network
S7-200
Programming device/PC
PC via PC/PPI cable
or MPI card
S7-200
S7-200
SIMATIC OP
TD 200
Fig. 1
Communication in PPI mode
MPI network
S7-200
Progr. device/PC
PC via MPI card
S7-300
S7-400
SIMATIC OP
Fig. 2
Communication in PPI mode
3
Micro PLC SIMATIC S7-200
September 2000 Extract from Siemens Catalog ST 70
SIMATIC S7-200
General
n
Communication
(cont.)
Point-to-point interface,
user-programmable
interface mode
Connection to the RS 232
interface via PC/PPI cable.
Data transmission is
performed with the CPU in
FreePort mode; in the case of
the CPU 226, both ports can
be operated in FreePort
mode. Data exchange takes
place using a user-specific,
bit-oriented communications
protocol (e.g. ASCII protocol
or Modbus). Maximum data
transmission rate 38.4 kbit/s
(adjustable).
S7-200
S7-200
Printer
Barcode reader
Modem
Fig. 3
Communication in user-programmable interface mode
Point-to-point connections are
possible to the following units:
• Any data terminal equipment
which has a serial interface,
e.g. printers, bar-code
readers
• S7-200 micro PLC; e.g. for
simple data exchange
between two CPUs
AS-Interface
The SIMATIC S7-200 is
connected to the AS-Interface
as a master via the CP 243-2.
This increases the number of
inputs and outputs appre-
ciably:
• Up to 31 AS-Interface slaves
with up to 248 binary
elements
PROFIBUS-DP slave
PROFIBUS-DP guarantees
integrated and uniform
communication between all
SIMATIC system components
while at the same time
maintaining an open system.
PROFIBUS-DP’s high data
transfer rate (up to 12 Mbit/s)
over the integrated interface
allows the real time features of
the S7-200 to be used to their
full extend within a distributed
system structure.
Response times in the millise-
cond range enable applica-
tions such as the following:
• Motor synchronization
• Interrupt-oriented applica-
tions
• Coordination of high-speed
counting processes
S7-200
Inductive BERO
with int. AS-Interface
SONAR BERO
with int. AS-Interface
Operator panel
Fig. 4
Communication via AS-Interface
S7-200
ET 200
SIMATIC S7-400
SIMATIC OP
SIMATIC S7-300
SIMATIC C7
SIMATIC S5
Programming device
Fig. 5
Communication via PROFIBUS-DP
4
Micro PLC SIMATIC S7-200
September 2000 Extract from Siemens Catalog ST 70
SIMATIC S7-200
CPUs
CPU 221, CPU 222, CPU 224, CPU 226
n
Overview
CPU 221
• The smart compact solution
• W ith 10 inputs/outputs on
board
• Not expandable
n
CPU 222
• The top compact solution
• W ith 14 inputs/outputs
on board
• Expandable with max. 2
expansion boards
n
CPU 224
• The compact high-perfor-
mance CPU
• W ith 24 inputs/outputs
on board
• Expandable with max. 7
expansion boards
n
CPU 226
• The powerful package for
large technical tasks
• W ith an additional communi-
cation interface for even
more flexibility and commu-
nication options
• W ith 40 inputs/outputs
on board
• Expandable with max. 7
expansion modules
5
Micro PLC SIMATIC S7-200
September 2000 Extract from Siemens Catalog ST 70
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