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6ES7211-0BA23-0XB0 CPU 221, AC PS, 6DI DC/4DO RELAY
SIMATIC S7-200, CPU 221 COMPACT UNIT, AC POWER SUPPLY 6 DI DC/4 DO RELAY 4 KB CODE/2 KB DATA,
Supply voltage
120 V AC
Yes
230 V AC
Yes
Line frequency
● permissible frequency range, upper limit
63 Hz
Load voltage L+
● Rated value (DC)
24 V
● permissible range, lower limit (DC)
5 V
● permissible range, upper limit (DC)
30 V
Load voltage L1
● Rated value (AC)
100 V; 100 V AC to 230 V AC
● permissible range, lower limit (AC)
5 V
● permissible range, upper limit (AC)
250 V
● permissible frequency range, lower limit
47 Hz
● permissible frequency range, upper limit
63 Hz
Input current
Inrush current, max.
20 A; at 264 V
from supply voltage L1, max.
120 mA; 15 to 60 mA (240 V); 30 to 120 mA (120 V); output current for expansion modules (5 V DC) 340 mA
Encoder supply
24 V encoder supply
● 24 V
Yes; Permissible range: 20.4V to 28.8V
● Short-circuit protection
Yes; electronic at 600 mA
● Output current, max.
180 mA
Memory
Type of memory
other
Number of memory modules (optional)
1; pluggable memory module, content identical with integral EEPROM; can additionally store recipes, data logs and other files
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.
0.22 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
32 767
S7 times
● Number
256
of which retentive with battery
— adjustable
Yes; via high-performance capacitor or battery
— upper limit
64
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.
2.5 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; Relays
Short-circuit protection
No; to be provided externally
Switching capacity of the outputs
● with resistive load, max.
2 A
● on lamp load, max.
30 W with DC, 200 W with AC
Output voltage
● for signal "1", min.
L+/L1
Output current
● for signal "1" rated value
2 A
● for signal "0" residual current, max.
0 mA
Output delay with resistive load
● "0" to "1", max.
10 ms; all outputs
● "1" to "0", max.
10 ms; all outputs
Parallel switching of 2 outputs
● for uprating
No
Total current of the outputs (per group)
all mounting positions
— up to 40 °C, max.
6 A
horizontal installation
— up to 55 °C, max.
6 A
Relay outputs
● Max. number of relay outputs, integrated
4
● Number of operating cycles, max.
10 000 000; mechanically 10 million, at rated load voltage 100,000
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
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; Relays
● between the channels, in groups of
1 and 3
Permissible potential difference
between different circuits
500 V DC between 24 V DC and 5 V DC; 1500 V AC between 24 V DC and 230 V AC
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.
1 080 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
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