CPU 1212C

General information

Product type designation

CPU 1212C DC/DC/DC

Firmware version

V4.2

V4.2

Engineering with

• ● Programming package

STEP 7 V14 or higher

STEP 7 V13 SP1 or higher

STEP 7 V14 or higher

Supply voltage

Rated value (DC)

• ● 24 V DC

Yes

Yes

permissible range, lower limit (DC)

20.4 V

20.4 V

permissible range, upper limit (DC)

28.8 V

28.8 V

Rated value (AC)

• ● 120 V AC

Yes

• ● 230 V AC

Yes

permissible range, lower limit (AC)

85 V

permissible range, upper limit (AC)

264 V

Reverse polarity protection

Yes

Line frequency

• ● permissible range, lower limit

47 Hz

• ● permissible range, upper limit

63 Hz

Load voltage L+

• ● Rated value (DC)

24 V

24 V

• ● permissible range, lower limit (DC)

20.4 V

20.4 V

• ● permissible range, upper limit (DC)

28.8 V

28.8 V

Input current

Current consumption (rated value)

80 mA at 120 V AC; 40 mA at 240 V AC

400 mA; Typical

400 mA; CPU only

Current consumption, max.

240 mA at 120 V AC; 120 mA at 240 V AC

1 200 mA; CPU with all expansion modules

Inrush current, max.

20 A; at 264 V

12 A; at 28.8 V DC

12 A; at 28.8 V

I²t

0.8 A²·s

0.8 A²·s

Output current

for backplane bus (5 V DC), max.

1 000 mA; Max. 5 V DC for SM and CM

1 000 mA; Max. 5 V DC for SM and CM

1 000 mA; Max. 5 V DC for SM and CM

Encoder supply

24 V encoder supply

• ● 24 V

20.4 to 28.8V

Permissible range: 20.4V to 28.8V

L+ minus 4 V DC min.

Power loss

Power loss, typ.

11 W

9 W

9 W

Memory

Work memory

• ● integrated

75 kbyte

50 kbyte

75 kbyte

• ● expandable

No

No

No

Load memory

• ● integrated

2 Mbyte

1 Mbyte

2 Mbyte

• ● Plug-in (SIMATIC Memory Card), max.

with SIMATIC memory card

2 Gbyte; with SIMATIC memory card

with SIMATIC memory card

Backup

• ● present

Yes

Yes; maintenance-free

Yes

• ● maintenance-free

Yes

Yes

• ● without battery

Yes

Yes

Yes

CPU processing times

for bit operations, typ.

0.08 µs; / instruction

0.085 µs; / Operation

0.08 µs; / instruction

for word operations, typ.

1.7 µs; / instruction

1.7 µs; / Operation

1.7 µs; / instruction

for floating point arithmetic, typ.

2.3 µs; / instruction

2.3 µs; / Operation

2.3 µs; / instruction

CPU-blocks

Number of blocks (total)

DBs, FCs, FBs, counters and timers. The maximum number of addressable blocks ranges from 1 to 65535. There is no restriction, the entire working memory can be used

DBs, FCs, FBs, counters and timers. The maximum number of addressable blocks ranges from 1 to 65535. There is no restriction, the entire working memory can be used

DBs, FCs, FBs, counters and timers. The maximum number of addressable blocks ranges from 1 to 65535. There is no restriction, the entire working memory can be used

OB

• ● Number, max.

Limited only by RAM for code

Limited only by RAM for code

Limited only by RAM for code

Data areas and their retentivity

Retentive data area (incl. timers, counters, flags), max.

10 kbyte

10 kbyte

10 kbyte

Flag

• ● Number, max.

4 kbyte; Size of bit memory address area

4 kbyte; Size of bit memory address area

4 kbyte; Size of bit memory address area

Local data

• ● per priority class, max.

16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB

16 kbyte; Priority class 1 (program cycle): 16 KB, priority class 2 to 26: 6 KB

Address area

I/O address area

• ● Inputs

1 024 byte

• ● Outputs

1 024 byte

Process image

• ● Inputs, adjustable

1 kbyte

1 kbyte

1 kbyte

• ● Outputs, adjustable

1 kbyte

1 kbyte

1 kbyte

Hardware configuration

Number of modules per system, max.

3 comm. modules, 1 signal board, 2 signal modules

3 comm. modules, 1 signal board, 2 signal modules

3 comm. modules, 1 signal board, 2 signal modules

Time of day

Clock

• ● Hardware clock (real-time)

Yes

Yes

Yes

• ● Backup time

480 h; Typical

480 h; Typical

480 h; Typical

• ● Deviation per day, max.

±60 s/month at 25 °C

±60 s/month at 25 °C

±60 s/month at 25 °C

Digital inputs

Number of digital inputs

8; Integrated

8; Integrated

8; Integrated

• ● of which inputs usable for technological functions

4; HSC (High Speed Counting)

6; HSC (High Speed Counting)

4; HSC (High Speed Counting)

Source/sink input

Yes

Yes

Yes

Number of simultaneously controllable inputs

all mounting positions

• — up to 40 °C, max.

8

8

8

Input voltage

• ● Rated value (DC)

24 V

24 V

24 V

• ● for signal "0"

5 V DC at 1 mA

5 V DC at 1 mA

5 V DC at 1 mA

• ● for signal "1"

15 V DC at 2.5 mA

15 V DC at 2.5 mA

15 V DC at 2.5 mA

Input current

• ● for signal "1", typ.

1 mA

Input delay (for rated value of input voltage)

for standard inputs

• — parameterizable

0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four

0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 μs; 0.05 / 0.1 / 0.2 / 0.4 / 0.8 / 1.6 / 3.2 / 6.4 / 10.0 / 12.8 / 20.0 ms

0.2 ms, 0.4 ms, 0.8 ms, 1.6 ms, 3.2 ms, 6.4 ms and 12.8 ms, selectable in groups of four

• — at "0" to "1", min.

0.2 ms

0.1 µs

0.2 ms

• — at "0" to "1", max.

12.8 ms

20 ms

12.8 ms

for interrupt inputs

• — parameterizable

Yes

Yes

Yes

for counter/technological functions

• — parameterizable

Single phase: 3 @ 100 kHz & 3 @ 30 kHz, differential: 3 @ 80 kHz & 3 @ 30 kHz

Single phase: 3 @ 100 kHz & 1 @ 30 kHz, differential: 3 @ 80 kHz & 1 @ 30 kHz

Single phase: 3 @ 100 kHz & 3 @ 30 kHz, differential: 3 @ 80 kHz & 3 @ 30 kHz

Cable length

• ● shielded, max.

500 m; 50 m for technological functions

500 m; 50 m for technological functions

500 m; 50 m for technological functions

• ● unshielded, max.

300 m; For technological functions: No

300 m; For technological functions: No

300 m; For technological functions: No

Digital outputs

Number of digital outputs

6; Relays

6

6; Relays

• ● of which high-speed outputs

4; 100 kHz Pulse Train Output

Short-circuit protection

No; to be provided externally

Limitation of inductive shutdown voltage to

L+ (-48 V)

Switching capacity of the outputs

• ● with resistive load, max.

2 A

0.5 A

2 A

• ● on lamp load, max.

30 W with DC, 200 W with AC

5 W

30 W with DC, 200 W with AC

Output voltage

• ● for signal "0", max.

0.1 V; with 10 kOhm load

• ● for signal "1", min.

20 V

Output current

• ● for signal "1" rated value

0.5 A

• ● for signal "0" residual current, max.

0.1 mA

Output delay with resistive load

• ● "0" to "1", max.

10 ms; max.

1 µs

10 ms; max.

• ● "1" to "0", max.

10 ms; max.

3 µs

10 ms; max.

Switching frequency

• ● of the pulse outputs, with resistive load, max.

100 kHz

Relay outputs

• ● Number of operating cycles, max.

mechanically 10 million, at rated load voltage 100 000

mechanically 10 million, at rated load voltage 100 000

Cable length

• ● shielded, max.

500 m

500 m

500 m

• ● unshielded, max.

150 m

150 m

150 m

Analog inputs

Number of analog inputs

2

2

2

Input ranges

• ● Voltage

Yes

Yes

Yes

Input ranges (rated values), voltages

• ● 0 to +10 V

Yes

Yes

Yes

• ● Input resistance (0 to 10 V)

≥100k ohms

≥100k ohms

≥100k ohms

Cable length

• ● shielded, max.

100 m; twisted and shielded

100 m; twisted and shielded

100 m; twisted and shielded

Analog outputs

Number of analog outputs

0

0

0

Cable length

• ● shielded, max.

100 m; shielded, twisted pair

Analog value generation for the inputs

Integration and conversion time/resolution per channel

• ● Resolution with overrange (bit including sign), max.

10 bit

10 bit

10 bit

• ● Integration time, parameterizable

Yes

Yes

Yes

• ● Conversion time (per channel)

625 µs

625 µs

625 µs

Encoder

Connectable encoders

• ● 2-wire sensor

Yes

Yes

Yes

1. Interface

Interface type

PROFINET

PROFINET

PROFINET

Physics

Ethernet

Ethernet

Ethernet

Isolated

Yes

Yes

Yes

automatic detection of transmission rate

Yes

Yes

Yes

Autonegotiation

Yes

Yes

Yes

Autocrossing

Yes

Yes

Yes

Interface types

• ● Number of ports

1

1

• ● integrated switch

No

No

Functionality

• ● PROFINET IO Controller

Yes

Yes

Yes

• ● PROFINET IO Device

Yes

Yes

Yes

• ● SIMATIC communication

Yes

Yes

• ● Open IE communication

Yes

Yes

• ● Web server

Yes

Yes

• ● Media redundancy

No

No

PROFINET IO Controller

• ● Transmission rate, max.

100 Mbit/s

100 Mbit/s

Services

• — PG/OP communication

Yes

Yes

• — S7 routing

Yes

Yes

• — Isochronous mode

No

No

• — Open IE communication

Yes

Yes

• — IRT

No

No

• — MRP

No

No

• — MRPD

No

No

• — PROFIenergy

No

No

• — Prioritized startup

Yes

Yes

• — Number of IO devices with prioritized startup, max.

16

16

16

• — Number of connectable IO Devices, max.

16

16

• — Number of connectable IO Devices for RT, max.

16

16

• — of which in line, max.

16

16

• — Activation/deactivation of IO Devices

Yes

Yes

• — Number of IO Devices that can be simultaneously activated/deactivated, max.

8

8

• — Updating time

The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data.

The minimum value of the update time also depends on the communication component set for PROFINET IO, on the number of IO devices and the quantity of configured user data.

PROFINET IO Device

Services

• — PG/OP communication

Yes

Yes

• — S7 routing

Yes

Yes

• — Isochronous mode

No

No

• — Open IE communication

Yes

Yes

• — IRT

No

No

• — MRP

No

No

• — MRPD

No

No

• — PROFIenergy

Yes

Yes

• — Shared device

Yes

Yes

• — Number of IO Controllers with shared device, max.

2

2

Protocols

Supports protocol for PROFINET IO

Yes

Yes

Yes

PROFIBUS

Yes; CM 1243-5 required

Yes; CM 1243-5 required

Yes; CM 1243-5 required

AS-Interface

Yes; CM 1243-2 required

Yes

Yes; CM 1243-2 required

Protocols (Ethernet)

• ● TCP/IP

Yes

Yes

Yes

• ● DHCP

No

No

• ● SNMP

Yes

Yes

• ● DCP

Yes

Yes

• ● LLDP

Yes

Yes

Open IE communication

• ● TCP/IP

• — Data length, max.

8 kbyte

8 kbyte

• ● ISO-on-TCP (RFC1006)

Yes

Yes

Yes

• — Data length, max.

8 kbyte

8 kbyte

• ● UDP

• — Data length, max.

1 472 byte

1 472 byte

Further protocols

• ● MODBUS

Yes

Yes

Yes

Communication functions

S7 communication

• ● supported

Yes

Yes

Yes

• ● as server

Yes

Yes

Yes

• ● as client

Yes

Yes

Yes

• ● User data per job, max.

See online help (S7 communication, user data size)

See online help (S7 communication, user data size)

Open IE communication

• ● TCP/IP

Yes

Yes

Yes

• ● UDP

Yes

Yes

Yes

Web server

• ● supported

Yes

Yes

Yes

• ● User-defined websites

Yes

Yes

Yes

Number of connections

• ● overall

16; dynamically

16; dynamically

Test commissioning functions

Status/control

• ● Status/control variable

Yes

Yes

Yes

• ● Variables

Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters

Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters

Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters

Forcing

• ● Forcing

Yes

Yes

Yes

Diagnostic buffer

• ● present

Yes

Yes

Yes

Traces

• ● Number of configurable Traces

2

2; Up to 512 KB of data per trace are possible

2

• ● Memory size per trace, max.

512 kbyte

512 kbyte

Interrupts/diagnostics/status information

Diagnostics indication LED

• ● RUN/STOP LED

Yes

Yes

• ● ERROR LED

Yes

Yes

• ● MAINT LED

Yes

Yes

Integrated Functions

Number of counters

4

6

4

Counting frequency (counter) max.

100 kHz

100 kHz

100 kHz

Frequency meter

Yes

Yes

Yes

controlled positioning

Yes

Yes

Yes

Number of position-controlled positioning axes, max.

8

8

Number of positioning axes via pulse-direction interface

Up to 4 with SB 1222

Up to 4 with SB 1222

PID controller

Yes

Yes

Yes

Number of alarm inputs

4

4

4

Number of pulse outputs

4

Limit frequency (pulse)

100 kHz

Potential separation

Potential separation digital inputs

• ● Potential separation digital inputs

500V AC for 1 minute

500V AC for 1 minute

500V AC for 1 minute

• ● between the channels, in groups of

1

1

1

Potential separation digital outputs

• ● Potential separation digital outputs

Relays

500V AC for 1 minute

Relays

• ● between the channels

No

No

• ● between the channels, in groups of

2

1

2

Permissible potential difference

between different circuits

500 V DC between 24 V DC and 5 V DC

EMC

Interference immunity against discharge of static electricity

• ● Interference immunity against discharge of static electricity acc. to IEC 61000-4-2

Yes

Yes

Yes

• — Test voltage at air discharge

8 kV

8 kV

8 kV

• — Test voltage at contact discharge

6 kV

6 kV

6 kV

Interference immunity to cable-borne interference

• ● Interference immunity on supply lines acc. to IEC 61000-4-4

Yes

Yes

Yes

• ● Interference immunity on signal cables acc. to IEC 61000-4-4

Yes

Yes

Yes

Interference immunity against voltage surge

• ● on the supply lines acc. to IEC 61000-4-5

Yes

Yes

Yes

Interference immunity against conducted variable disturbance induced by high-frequency fields

• ● Interference immunity against high-frequency radiation acc. to IEC 61000-4-6

Yes

Yes

Yes

Emission of radio interference acc. to EN 55 011

• ● Limit class A, for use in industrial areas

Yes; Group 1

Yes; Group 1

Yes; Group 1

• ● Limit class B, for use in residential areas

Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011

Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011

Yes; When appropriate measures are used to ensure compliance with the limits for Class B according to EN 55011

Degree and class of protection

Degree of protection acc. to EN 60529

• ● IP20

Yes

Yes

Yes

Standards, approvals, certificates

CE mark

Yes

Yes

Yes

UL approval

Yes

Yes

Yes

cULus

Yes

Yes

Yes

FM approval

Yes

Yes

Yes

RCM (formerly C-TICK)

Yes

Yes

Yes

KC approval

Yes

Yes

Marine approval

Yes

Yes

Yes

Ambient conditions

Free fall

• ● Fall height, max.

0.3 m; five times, in product package

0.3 m; five times, in product package

0.3 m; five times, in product package

Ambient temperature during operation

• ● min.

-20 °C

-20 °C

-20 °C

• ● max.

60 °C; Number of simultaneously activated inputs or outputs 4 or 3 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 8 or 6 at 55 °C horizontal or 45 °C vertical

60 °C; Number of simultaneously activated inputs or outputs 4 or 3 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 8 or 6 at 55 °C horizontal or 45 °C vertical

60 °C; Number of simultaneously activated inputs or outputs 4 or 3 (no adjacent points) at 60 °C horizontal or 50 °C vertical, 8 or 6 at 55 °C horizontal or 45 °C vertical

• ● horizontal installation, min.

-20 °C

-20 °C

-20 °C

• ● horizontal installation, max.

60 °C

60 °C

60 °C

• ● vertical installation, min.

-20 °C

-20 °C

-20 °C

• ● vertical installation, max.

50 °C

50 °C

50 °C

Ambient temperature during storage/transportation

• ● min.

-40 °C

-40 °C

-40 °C

• ● max.

70 °C

70 °C

70 °C

Air pressure acc. to IEC 60068-2-13

• ● Operation, min.

795 hPa

795 hPa

795 hPa

• ● Operation, max.

1 080 hPa

1 080 hPa

1 080 hPa

• ● Storage/transport, min.

660 hPa

660 hPa

660 hPa

• ● Storage/transport, max.

1 080 hPa

1 080 hPa

1 080 hPa

• ● permissible operating height

-1000 to 2000 m

-1000 to 2000 m

-1000 to 2000 m

Relative humidity

• ● Operation, max.

95 %; no condensation

95 %; no condensation

95 %; no condensation

Vibrations

• ● Vibrations

2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail

2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail

2 g (m/s²) wall mounting, 1 g (m/s²) DIN rail

• ● Operation, tested according to IEC 60068-2-6

Yes

Yes

Yes

Shock test

• ● tested according to IEC 60068-2-27

Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms

Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms

Yes; IEC 68, Part 2-27 half-sine: strength of the shock 15 g (peak value), duration 11 ms

Pollutant concentrations

• ● SO2 at RH < 60% without condensation

S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free

S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free

S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free

Programming

Programming language

• — LAD

Yes

Yes

Yes

• — FBD

Yes

Yes

Yes

• — SCL

Yes

Yes

Yes

Know-how protection

• ● User program protection/password protection

Yes

Yes

• ● Copy protection

Yes

Yes

• ● Block protection

Yes

Yes

Access protection

• ● Protection level: Write protection

Yes

Yes

• ● Protection level: Read/write protection

Yes

Yes

• ● Protection level: Complete protection

Yes

Yes

Cycle time monitoring

• ● adjustable

Yes

Yes

Yes

Dimensions

Width

90 mm

90 mm

90 mm

Height

100 mm

100 mm

100 mm

Depth

75 mm

75 mm

75 mm

Weights

Weight, approx.

425 g

370 g

385 g