Siemens Simatic S7 Series User Manual

21
In the model description, the first term following the CPU type
indicates the power supply type, the second term indicates
the input type, and the third term indicates the output type.
For example, a 222 AC/DC/Relay model is powered from an AC
source, has DC input points, and relay contact output points.
S7-200 Features The S7-200 family includes a range of CPUs which provide
a variety of features to aid in designing a cost-effective
automation solution. The accompanying table provides a
summary of the major features, many of which are covered in
this course. Note that the CPU 224XPsi has 10 current sinking
digital outputs, but its other features are the same as for the
CPU 224XP.
Feature CPU 221 CPU 222 CPU 224 CPU 224XP CPU 226
CPU 224XPsi
Program (with run mode edit) 4096 Bytes 4096 Bytes 8192 Bytes 12288 Bytes 16384 Bytes
Program (w/o run mode edit) 4096 Bytes 4096 Bytes 12288 Bytes 16384 Bytes 24576 Bytes
User Data 2048 Bytes 2048 Bytes 8192 Bytes
10240 Bytes 10240 Bytes
Optional Memory Cartridges 64k or 256k Bytes 64k or 256k Bytes 64k or 256k Bytes 64k or 256k Bytes 64k or 256k Bytes
Memory Backup (super cap) 50 Hours typical 50 Hours typical 100 Hours typical 100 Hours typical 100 Hours typical
Memory Backup (opt. battery) 200 Days typical 200 Days typical 200 Days typical 200 Days typical 200 Days typical
Digital I/O without Exp. Modules 6 In/4 Out 8 In/6 Out 14 In/10 Out 14 In/10 Out
24 In/16 Out
Analog I/O without Exp. Modules None None None
2 In/1 Out
None
Max Expansion Modules None 2 7 7 7
Internal Relays 256 256 256 256 256
Counters 256 256 256 256 256
TImers 256 256 256 256 256
32-Bit, Floating-Point Math (+-*/) Yes Yes Yes
Yes Yes
High-Speed Counters 4 (30 KHz) 4 (30 KHz) 6 (30 KHz) 4 (30 KHz), 6 (30 KHz)
2 (200 KHz)
Pulse Outputs (DC) 2 (20 KHz) 2 (20 KHz) 2 (20 KHz) 2 (20 KHz) 2 (20 KHz)
Timed Interrupts 2 (1ms - 255ms) 2 (1ms - 255ms) 2 (1ms - 255ms) 2 (1ms - 255ms) 2 (1ms - 255ms)
Edge Interrupts 4 4 4 4 4
Real-Time Clock Optional Optional Built-In Built-In Built-In
Password Protection Yes Yes Yes
Yes Yes
Number of Ports 1 (RS-485) 1 (RS-485) 1 (RS-485)
2 (RS-485) 2 (RS-485)
Protocols Supported Port 0
PPI, MPI Slave,
Freeport
PPI, MPI Slave,
Freeport
PPI, MPI Slave,
Freeport
PPI, MPI Slave,
Freeport
PPI, MPI Slave,
Freeport
Optional Communcations Not Expandable PROFIBUS DP Slave, PROFIBUS DP Slave,
PROFIBUS DP Slave,
PROFIBUS DP Slave,
AS-Interface Master, AS-Interface Master, AS-Interface Master, AS-Interface Master,
Ethernet, Internet,
Modem
Ethernet, Internet,
Modem
Ethernet, Internet,
Modem
Ethernet, Internet,
Modem
Communications
Memory
I/O
Instructions
Enhanced Features
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Siemens Simatic S7 Series Specifications

General

CPU	Varies by model (e.g., S7-300, S7-400, S7-1200, S7-1500)
Communication Interfaces	PROFIBUS, PROFINET, Ethernet, MPI
Programming	TIA Portal, STEP 7
Programming Languages	LAD, FBD, STL, SCL, GRAPH
I/O Modules	Digital, Analog, Specialty modules available
Operating Temperature	0°C to 60°C (standard models)
Mounting	DIN rail mounting
Operating Voltage	24V DC or 120/230V AC (varies by model)
Protection Class	IP20 (standard models)
Memory	Varies depending on the S7 model. Includes work memory (RAM) for program execution, load memory (EEPROM or Flash) for program storage, and system memory for operating system functions. Memory sizes range from kilobytes to megabytes.