Siemens Simatic S7 Series Manual page 22

S7-200 Features..
Feature
Memory
Program (with run mode edit)
Program (w/o run mode edit)
User Data
Optional Memory Cartridges
Memory Backup (super cap)
Memory Backup (opt. battery)
I/O
Digital I/O without Exp. Modules
Analog I/O without Exp. Modules None
Max Expansion Modules
Instructions
Internal Relays
Counters
TImers
32-Bit, Floating-Point Math (+-*/) Yes
Enhanced Features
High-Speed Counters
Pulse Outputs (DC)
Timed Interrupts
Edge Interrupts
Real-Time Clock
Password Protection
Communications
Number of Ports
Protocols Supported Port 0
Optional Communcations
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.
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.0.current.sinking.
digital.outputs,.but.its.other.features.are.the.same.as.for.the.
CPU.224XP .
CPU 221 CPU 222
4096 Bytes 4096 Bytes
4096 Bytes 4096 Bytes
2048 Bytes 2048 Bytes
64k or 256k Bytes 64k or 256k Bytes
50 Hours typical 50 Hours typical
200 Days typical 200 Days typical
6 In/4 Out 8 In/6 Out
None
None 2
256 256
256 256
256 256
Yes
4 (30 KHz) 4 (30 KHz)
2 (20 KHz) 2 (20 KHz)
2 (1ms - 255ms) 2 (1ms - 255ms)
4 4
Optional Optional
Yes Yes
1 (RS-485) 1 (RS-485)
PPI, MPI Slave, PPI, MPI Slave,
Freeport Freeport
Not Expandable PROFIBUS DP Slave,
AS-Interface Master,
Ethernet, Internet,
Modem
CPU 224 CPU 224XP
CPU 224XPsi
8192 Bytes 12288 Bytes
12288 Bytes 16384 Bytes
8192 Bytes
10240 Bytes
64k or 256k Bytes 64k or 256k Bytes
100 Hours typical 100 Hours typical
200 Days typical 200 Days typical
14 In/10 Out 14 In/10 Out
None
2 In/1 Out
7 7
256 256
256 256
256 256
Yes Yes
6 (30 KHz) 4 (30 KHz),
2 (200 KHz)
2 (20 KHz) 2 (20 KHz)
2 (1ms - 255ms) 2 (1ms - 255ms)
4 4
Built-In Built-In
Yes
Yes
1 (RS-485)
2 (RS-485)
PPI, MPI Slave, PPI, MPI Slave,
Freeport Freeport
PROFIBUS DP Slave, PROFIBUS DP Slave, PROFIBUS DP Slave,
AS-Interface Master, AS-Interface Master,
Ethernet, Internet, Ethernet, Internet,
Modem Modem
2
CPU 226
16384 Bytes
24576 Bytes
10240 Bytes
64k or 256k Bytes
100 Hours typical
200 Days typical
24 In/16 Out
None
7
256
256
256
Yes
6 (30 KHz)
2 (20 KHz)
2 (1ms - 255ms)
4
Built-In
Yes
2 (RS-485)
PPI, MPI Slave,
Freeport
AS-Interface Master,
Ethernet, Internet,
Modem