6ES7 312-5BE03-0AB0

Product status

associated programming package

STEP 7 V5.2 + SP 1 or higher + HW update

Supply voltages

Rated value

• DC 24 V

Yes

• permissible range, lower limit (DC)

20.4 V

• permissible range, upper limit (DC)

28.8 V

Voltages and currents

external protection for supply cables (recommendation)

LS-switch Type C min 2 A; LS-switch Type-B min. 4 A

Current consumption

Inrush current, typ.

3 A

I²t

0.7 A²s

Current consumption (in no-load operation), typ.

60 mA

Current consumption (rated value)

500 mA

from supply voltage L+, max.

500 mA

Power loss, typ.

6 W

• RAM

• integrated

32 KByte; For program and data

• expandable

No

• Load memory

• pluggable (MMC)

Yes

• pluggable (MMC), max.

4 MByte

Backup

• present

Yes; Guaranteed by MMC (maintenance-free)

• without battery

Yes; Program and data

CPU/blocks

DB

• Number, max.

511; Number band: 1 to 511

• Size, max.

16 KByte

FB

• Number, max.

1,024; Number band: 0 to 2047

• Size, max.

16 KByte

FC

• Number, max.

1,024; Number band: 0 to 2047

• Size, max.

16 KByte

OB

• Anzahl, max., Anmerkung

; See Operation List

• Size, max.

16 KByte

Nesting depth

• per priority class

8

• additional within an error OB

4

CPU/processing times

for bit operations, min.

0.2 µs

for word operations, min.

0.4 µs

for fixed point arithmetic, min.

5 µs

for floating point arithmetic, min.

6 µs

Times/counters and their remanence

S7 counter

• Number

128

• of which remanent without battery

• adjustable

Yes

• lower limit

0

• upper limit

127

• Remanence

• adjustable

Yes

• lower limit

0

• upper limit

127

• Counting range

• lower limit

0

• upper limit

999

IEC counter

• present

Yes

• Type

SFB

S7 times

• Number

128

• Remanence

• adjustable

Yes

• lower limit

0

• upper limit

127

• preset

no retentivity

• Time range

• lower limit

10 ms

• upper limit

9,990 s

IEC timer

• present

Yes

• Type

SFB

Data areas and their remanence

Flag

• Number, max.

128 Byte

• Remanence available

Yes; MB 0 to MB 127

• Number of clock memories

8; 1 memory byte

Data blocks

• Number, max.

511; from DB1 to DB511

• Size, max.

16 KByte

• Remanence adjustable

Yes; via non-retain property on DB

• Remanence preset

yes

Local data

• per priority class, max.

256 Byte

Address area

I/O address area

• Inputs

1 KByte

• Outputs

1 KByte

Process image

• Inputs

128 Byte

• Outputs

128 Byte

Digital channels

• Inputs

266

• Outputs

262

• Inputs, of which central

266

• Outputs, of which central 

262

Analog channels

• Inputs

64

• Outputs

64

• Inputs, of which central

64

• Outputs, of which central

64

Hardware config.

Central devices, max.

1

Expansion devices, max.

0

Racks, max.

1

Modules per rack, max.

8

Number of DP masters

• integrated

none

• via CP

4

Number of operable FMs and CPs (recommended)

• FM

8

• CP, point-to-point

8

• CP, LAN

4

Time

Clock

• Software clock

Yes

• buffered and synchronizable

No

• Deviation per day, max.

15 s

Operating hours counter

• Number

1

• Number/Number range

0

• Range of values

2^31 hours (when using the SFC 101)

• Granularity

1 hour

• remanent

Yes; must be restarted at each warm restart

Clock synchronization

• supports

Yes

• to MPI, Master

Yes

• to MPI, Slave

Yes

• in AS, Master

Yes

S7 message functions

Number of login stations for message functions, max.

6; depending on the configured connections for PG-/ OP- and S7- basic commmunication

Process diagnostic messages

Yes

simultaneously active Alarm-S blocks, max.

20

Test commissioning functions

Status/control

• Status/control variable

Yes

• Variables

Inputs, outputs, memory bits, DB, times, counters

• Number of variables, max.

30

• of which status variable, max.

30

• of which control variable, max.

14

Forcing

• Forcing

Yes

• Force, variables

Inputs, outputs

• Number of variables, max.

10

Status block

Yes

Single step

Yes

Number of breakpoints 

2

Diagnostic buffer

• present 

Yes

• Number of entries, max.

100

Communication functions

PG/OP communication

Yes

Routing

No

Global data communication

• supported

Yes

• Size of GD packets, max.

22 Byte

S7 basic communication

• supported

Yes

S7 communication

• supported

Yes

S5-compatible communication

• supported

Yes; via CP and loadable FC

Number of connections

• overall

6

• usable for PG communication

5

• usable for OP communication

5

• usable for S7 basic communication

2

• usable for routing

no

Connection point

required front connectors

1 x 40-pin

MPI

Cable length, max.

50 m; Without repeater

1st interface

Type of interface

integrated RS 422/ 485 interface

Physics

RS 485

isolated

No

Power supply to interface (15 to 30 V DC), max.

200 mA

Functionality

• MPI

Yes

• DP master

No

• DP slave

No

• Point-to-point coupling

No

MPI

• Number of connections

6

• Services

• PG/OP communication

Yes

• Routing

No

• Global data communication

Yes

• S7 basic communication

Yes

• S7 communication

Yes

• S7 communication, as client

No

• S7 communication, as server

Yes

• Transmission speeds, max.

187.5 kBit/s

CPU/programming

Programming language

• STEP 7

Yes; V5.2 + SP1 + HW update

• LAD

Yes

• FUP

Yes

• AWL

Yes

• SCL

Yes

• GRAPH

Yes

• HiGraph®

Yes

Software libraries

Operational stocks

see Instruction List

Nesting levels

8

User program protection/password protection

Yes

System functions (SFC)

see Instruction List

System function blocks (SFB)

see Instruction List

Digital inputs

Number of digital inputs

10

• of which, inputs usable for technological functions 

8

Number of simultanneously controllable inputs

• vertical installation

• up to 40 °C, max.

5

• horizontal installation

• up to 40 °C, max.

10

• up to 60 °C, max.

5

Cable length

• cable length, shielded, max.

1,000 m; 100 m for technological functions

• Cable length unshielded, max.

600 m; For technological functions: No

• Technological functions

• shielded, max.

100 m

• ungeschirmt, max., Anmerkung

; not allowed

• Standard-DI

• schielded, max.

1,000 m

• unshielded, max.

600 m

Input characteristic curve to IEC 1131, Typ 1

Yes

Input voltage

• Rated value, DC

24 V

• for signal "0"

-3 to 5 V

• for signal "1"

15 to 30 V

Input current

• for signal "1", typ.

9 mA

Input delay (for rated value of input voltage)

• for standard inputs

• programmable

Yes; 0.1 / 0.3 / 3 / 15 ms

• Rated value

3 ms

• for counter/technological functions

• at "0" to "1", max.

48 µs

Digital outputs

Number of digital outputs

6

• of which, high-speed outputs

2

cable length, shielded, max.

1,000 m

Cable length unshielded, max.

600 m

Short-circuit protection of the output

Yes; clocked electronically

• Response threshold, typ.

1 A

Limitation of inductive shutdown voltage to 

L+ (-48 V)

Lamp load, max.

5 W

Controlling a digital input

Yes

Output voltage

• for signal "1", min.

L+ (-0.8 V)

Output current

• for signal "1" rated value

500 mA

• for signal "1" permissible range, min.

5 mA

• for signal "1" permissible range, max.

0.6 A

• for signal "1" minimum load current

5 mA

• for signal "0" residual current, max.

0.5 mA

Parallel switching of 2 outputs

• for increased power

No

• for redundant control of a load

Yes

Switching frequency

• with resistive load, max.

100 Hz

• with inductive load, max.

0.5 Hz

• on lamp load, max.

100 Hz

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

2.5 kHz

Aggregate  current of the outputs (per group)

• vertical installation

• up to 40 °C, max.

1.5 A

• horizontal installation

• up to 40 °C, max.

2 A

• up to 60 °C, max.

1.5 A

Load impedance range

• lower limit

48 Ω

• upper limit

4 kΩ

Encoder

Connectable encoders

• 2-wire BEROS

Yes

• permissible quiescent current (2-wire BEROS), max.

1.5 mA

Integrated Functions

Number of counters

2; 2 channels (see "Technological Functions" manual)

Counter frequency (counter) max.

10 kHz

Frequency measurement

Yes

controlled positioning

No

PID controller

No

Number of pulse outputs

2; 2 channels pulse width modulation up to 2.5 kHz (see Manual "Technological Functions")

Limit frequency (pulse)

2.5 kHz

Isolation

Galvanic isolation, digital inputs

• galvanic isolation, digital inputs

Yes

• between the channels

No

• between the channels, in groups of

10

• between the channels and the backplane bus

Yes

Isolation, digital outputs

• Galvanic isolation, digital outputs

Yes

• between the channels

No

• between the channels, in groups of

6

• between the channels and the backplane bus

Yes

Dimensions

Width

80 mm

Height

125 mm

Depth

130 mm

Weights

Weight, approx.

409 g