Specifications

S7-200 Programmable Controller System Manual
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Table A-4 CPU Specifications
CPU 221 CPU 222 CPU 224 CPU 224XP
CPU 224XPsi
CPU 226
Memory
User program size
with run mode edit
without run mode edit
4096 bytes
4096 bytes
8192 bytes
12288 bytes
12288 bytes
16384 bytes
16384 bytes
24576 bytes
User data 2048 bytes 8192 bytes 10240 bytes 10240 bytes
Backup (super cap)
(optional battery)
50 hours typi cal (8 hours min. at 40°C)
200 days typical
100 hours typical (70
hours min. at 40 °C)
200 days typical
100 hours typical (70 hours min. at 40°C)
200 days typical
I/O
Digital I/O 6 inputs/4outputs 8 inputs/6 outputs 14 inputs/10 outputs 14 inputs /10 outputs 24 inputs/16 outputs
Analog I/O none 2 inputs/1 output none
Digital I/O im age size 256 (128 In/128 Out)
Analog I/O image size None 32 (16 In/16 Out) 64 (32 In/32 Out)
Max. expansion modules al lowed None 2 modules
1
7 modules
1
Max.intelligentmodules allowed None 2 modules
1
7 modules
1
Pulse Catch inputs 6 8 14 24
High-Speed Counters
Single phase
Two phase
4 counters total
4at30kHz
2at20kHz
6 counters total
6at30kHz
4at20kHz
6 counters total
4at30kHz
2 at 200 k Hz
3at20kHz
1 at 100 k Hz
6 counters total
6at30kHz
4at20kHz
Pulse outputs 2 at 20 k Hz (DC outputs only) 2 at 100 k Hz
(DC outputs only)
2at20kHz
(DC outputs only)
General
Timers 256 total ti m ers; 4 ti mers (1 ms); 16 timers (10 ms); 236 timers (100 ms)
Counters 256 (backed by super capacitor or battery)
Internal memory bits
Stored on power down
256 (backed by super capacitor or battery)
112 (stored to EEPROM)
Timed interrupts 2with1msresolution
Edge interrupts 4 up and/or 4 down
Analog adj ustment 1 with 8 bit resolution 2 with 8 bi t resolution
Boolean execution speed 0.22 µs per instruction
Real Time Cloc k Optional cartridge Built-in
Cartridge options Memory, B attery, and Real Time Clock Memory and battery
Communications Built-in
Ports (Limited Power) 1 RS--485 port 2 RS--485 ports
PPI, DP/T baud rates 9.6, 19.2, 187.5 k baud
Freeport baud rates 1.2 kbaud to 115.2 kbaud
Max. cable length per segment With isolated repeater: 1000 m up to 187.5 kbaud, 1200 m up to 38.4 kbaud
Without isolated repeater: 50 m
Max. number of stations 32 per segment, 126 per network
Max. number of masters 32
Peer to Peer (PPI Master Mode) Yes (NETR/NETW)
MPI connections 4 total, 2 reserved (1 for a PG and 1 for an OP)
1
You must calc ulate your powerbudget to determine how muc h power(or current)the S7-200 CPU can provide for your configuration. If the CPU powerbudget
is exceeded, you may not be able to connect the maximum number of modules. See Appendix A for CPU and expansion module power requirements, and
Appendix B to calculate your power budget.