6ES7211-0AA22-0XB0 CPU 221, DC PS, 6DI DC/4DO DC

Product Code: 6ES7211-0AA22-0XB0

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SIMATIC S7-200, CPU 221 COMPACT UNIT, DC POWER SUPPLY 6 DI DC/4 DO DC, 4 KB CODE/2 KB DATA,
Supply voltage
24 V DC Yes
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
Load voltage L+
Rated value (DC) 24 V
permissible range, lower limit (DC) 20.4 V
permissible range, upper limit (DC) 28.8 V
Input current
Inrush current, max. 10 A; at 28.8 V
from supply voltage L+, max. 900 mA; 80 to 900 mA
Encoder supply
24 V encoder supply
24 V Yes; permissible range: 15.4 to 28.8 V
Short-circuit protection Yes; electronic at 600 mA
Output current, max. 180 mA
Memory
Number of memory modules (optional) 1; pluggable memory module, content identical with integral EEPROM
Data and program memory
Data memory, max. 2 kbyte
Program memory, max. 4 kbyte
Backup
present Yes; Program: Entire program maintenance-free on integral EEPROM, programmable via CPU; data: Entire DB 1 loaded from PG/PC maintenance-free on integral EEPROM, current values of DB 1 in RAM, retentive memory bits, timers, counters, etc. maintenance-free via high-performance capacitor; optional battery for long-term buffering
Battery
Backup battery
Backup time, max. 50 h; (min. 8 h at 40 °C); 200 days (typ.) with optional battery module
CPU processing times
for bit operations, max. 0.37 µs
Counters, timers and their retentivity
S7 counter
Number 256
of which retentive with battery
adjustable Yes; via high-performance capacitor or battery
lower limit 1
upper limit 256
Counting range
lower limit 0
upper limit 32767
S7 times
Number 256
of which retentive with battery
adjustable Yes; via high-performance capacitor or battery
upper limit 65
Time range
lower limit 1 ms
upper limit 54 min; 4 timers: 1 ms to 30 s; 16 timers: 10 ms to 5 min; 236 timers: 100 ms to 54 min
Data areas and their retentivity
Flag
Number, max. 32 byte
Retentivity available Yes; M 0.0 to M 31.7
of which retentive with battery 0 to 255, via high-performance capacitor or battery, adjustable
of which retentive without battery 0 to 112 in EEPROM, adjustable
Hardware configuration
connectable programming devices/PCs SIMATIC PG/PC, standard PC
Digital inputs
Number of digital inputs 6; Integrated
m/p-reading Yes; optionally, per group
Input voltage
Rated value, DC 24 V
for signal "0" 0 to 5 V
for signal "1" min. 15 V
Input current
for signal "1", typ. 4 mA
Input delay (for rated value of input voltage)
for standard inputs
parameterizable Yes; all
at "0" to "1", min. 0.2 ms
at "0" to "1", max. 12.8 ms
for interrupt inputs
parameterizable Yes; I 0.0 to I 0.3
for counter/technological functions
parameterizable Yes; (E0.0 to E0.5) 30 kHz
Cable length
Cable length, shielded, max. 500 m; Standard input: 500 m, high-speed counters: 50 m
Cable length unshielded, max. 300 m; not for high-speed signals
Digital outputs
Number of digital outputs 4; Transistor
Short-circuit protection No; to be provided externally
Limitation of inductive shutdown voltage to 1 W
Switching capacity of the outputs
with resistive load, max. 0.75 A
on lamp load, max. 5 W
Output voltage
for signal "1", min. 20 V DC
Output current
for signal "1" rated value 750 mA
for signal "0" residual current, max. 0.1 mA
Output delay with resistive load
"0" to "1", max. 15 µs; of the standard outputs, max. (Q0.2 to Q0.3) 15 µs; of the pulse outputs, max. (Q0.0 to Q0.1) 2 µs
"1" to "0", max. 100 µs; of the standard outputs, max. (Q0.2 to Q0.3) 100 µs; of the pulse outputs, max. (Q0.0 to Q0.1) 10 µs
Parallel switching of 2 outputs
for uprating Yes
Switching frequency
of the pulse outputs, with resistive load, max. 20 kHz; Q0.0 to Q0.1
Total current of the outputs (per group)
all mounting positions
up to 40 °C, max. 3 A
horizontal installation
up to 55 °C, max. 3 A
Cable length
Cable length, shielded, max. 500 m
Cable length unshielded, max. 150 m
Analog inputs
Number of analog potentiometers 1; Analog potentiometer; resolution 8 bit
Encoder
Connectable encoders
2-wire sensor Yes
permissible quiescent current (2-wire sensor), max. 1 mA
1. Interface
Interface type Integrated RS 485 interface
Physics RS 485
Functionality
MPI Yes; As MPI slave for data exchange with MPI masters (S7-300/S7-400 CPUs, OPs, TDs, Push Button Panels); S7-200-internal CPU/CPU communication is possible in the MPI network with restrictions; transmission rates: 19.2/187.5 kbit/s
PPI Yes; with PPI protocol for program functions, HMI functions (TD 200, OP), S7-200-internal CPU/CPU communication ; transmission rates 9.6/19.2/187.5 kbit/s
serial data exchange Yes; As freely programmable interface with interrupt facility for serial data exchange with third-party devices with ASCII protocol transfer rates: 1.2 / 2.4 / 4.8 / 9.6 / 19.2 / 38.4 / 57.6 / 115.2 kbit/s; the PC/PPI cable can also be used as RS232/RS485 converter
MPI
Transmission rate, min. 19.2 kbit/s
Transmission rate, max. 187.5 kbit/s
Integrated Functions
Number of counters 4; High-speed counters (30 kHz each), 32 bits (incl. sign), can be used as up/down counters or for connecting 2 incremental encoders with 2 pulse trains offset by 90° (max. 20 kHz (A/B counters)); parameterizable enable and reset input; interrupt facilities (incl. call of subroutine with any content) when the setpoint is reached; reversal in counting direction, etc.
Counting frequency (counter) max. 30 kHz
Number of alarm inputs 4; 4 rising edges and/or 4 falling edges
Number of pulse outputs 2; High-speed outputs, 20 kHz, with interrupt option; pulse-width and frequency modulation option
Limit frequency (pulse) 20 kHz
Galvanic isolation
Galvanic isolation digital inputs
between the channels Yes
between the channels, in groups of 2 and 4
Galvanic isolation digital outputs
between the channels Yes; Optocoupler
between the channels, in groups of 4
Permissible potential difference
between different circuits 500 V DC between 24 V DC and 5 V DC
Degree and class of protection
IP20 Yes
Ambient conditions
Environmental conditions For further environmental conditions, see "Automation System S7-200, System Manual"
Operating temperature
horizontal installation, min. 0 °C
horizontal installation, max. 55 °C
vertical installation, min. 0 °C
vertical installation, max. 45 °C
Air pressure
permissible range, min. 860 hPa
permissible range, max. 1080 hPa
Relative humidity
Operation, min. 5 %
Operation, max. 95 %; RH class 2 in accordance with IEC 1131-2
Configuration
Programming
Command set Bit logic instructions, compare instructions, timer instructions, counter instructions, clock instructions, transmissions instructions, table instructions, logic instructions, shift and rotate instructions, conversion instructions, program control instructions, interrupt and communications instructions, logic stack instructions, integer maths, floating-point math instructions, numerical functions
Program processing free cycle (OB 1), interrupt-controller, time-controlled (1 to 255 ms)
Program organization 1 OB, 1 DB, 1 SDB subroutines with/without parameter transfer
Number of subroutines, max. 64
Programming language
LAD Yes
FBD Yes
STL Yes
Know-how protection
User program protection/password protection Yes; 3-stage password protection
Connection method
Plug-in I/O terminals No
Dimensions
Width 90 mm
Height 80 mm
Depth 62 mm
Weights
Weight, approx. 270 g
Status Jul 21, 2014

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