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112-4BH02 - CPUs | CPUs STEP7 programmable

Order no.

112-4BH02

TypeCPU 112

General information

Note-
Features8 (12) inputs
8 (4) outputs
8 kB work memory, 16 kB load memory

Technical data power supply

Power supply (rated value)DC 24 V
Power supply (permitted range)DC 20.4...28.8 V
Reverse polarity protection
Current consumption (no-load operation)50 mA
Current consumption (rated value)1 A
Inrush current58 A
I²t0.38 A²s
Max. current drain at backplane bus-
Max. current drain load supply-
Power loss5 W
Reverse polarity protection

Technical data digital inputs

Number of inputs8 (12
Cable length, shielded1000 m
Cable length, unshielded600 m
Rated load voltageDC 24 V
Reverse polarity protection of rated load voltage
Current consumption from load voltage L+ (without load)-
Rated valueDC 24 V
Input voltage for signal "0"DC 0...5 V
Input voltage for signal "1"DC 15...28.8 V
Input current for signal "1"7 mA
Connection of Two-Wire-BEROs possible
Max. permissible BERO quiescent current1.5 mA
Input delay of "0" to "1"3 ms
Input delay of "1" to "0"3 ms
Input characteristic curveIEC 61131-2, type 1
Initial data size3 Byte

Technical data digital outputs

Number of outputs8 (4
Cable length, shielded1000 m
Cable length, unshielded600 m
Rated load voltageDC 24 V
Reverse polarity protection of rated load voltage-
Current consumption from load voltage L+ (without load)50 mA
Total current per group, horizontal configuration, 40°C4 A
Total current per group, horizontal configuration, 60°C4 A
Total current per group, vertical configuration4 A
Output voltage signal "1" at min. currentL+ (-125 mV)
Output voltage signal "1" at max. currentL+ (-0.8 V)
Output current at signal "1", rated value0.5 A
Output delay of "0" to "1"max. 100 µs
Output delay of "1" to "0"max. 350 µs
Minimum load current-
Lamp load5 W
Switching frequency with resistive loadmax. 1000 Hz
Switching frequency with inductive loadmax. 0.5 Hz
Switching frequency on lamp loadmax. 10 Hz
Internal limitation of inductive shut-off voltageL+ (-52 V)
Short-circuit protection of outputyes, electronic
Trigger level1 A
Output data size3 Byte

Technical data counters

Number of counters-
Counter width-
Maximum input frequency-
Maximum count frequency-
Mode incremental encoder-
Mode pulse / direction-
Mode pulse-
Mode frequency counter-
Mode period measurement-
Gate input available-
Latch input available-
Reset input available-
Counter output available-

Status information, alarms, diagnostics

Status displayyes
Interruptsyes
Process alarmyes
Diagnostic interruptyes
Diagnostic functionsno
Diagnostics information read-outpossible
Supply voltage displaygreen LED
Group error displayred SF LED
Channel error displaynone

Isolation

Between channels of groups to8
Between channels and backplane bus
Insulation tested withDC 500 V

PWM data

PWM channels-
PWM time basis-
Period length-
Minimum pulse width-
Type of output-

Load and working memory

Load memory, integrated16 KB
Load memory, maximum16 KB
Work memory, integrated8 KB
Work memory, maximal8 KB
Memory divided in 50% program / 50% data-
Memory card slotMMC-Card with max. 512 MB

Hardware configuration

Racks, max.-
Modules per rack, max.-
Number of integrated DP master-
Number of DP master via CP-
Operable function modules-
Operable communication modules PtP-
Operable communication modules LAN-

Command processing times

Bit instructions, min.0.25 µs
Word instruction, min.1.2 µs
Double integer arithmetic, min.2.6 µs
Floating-point arithmetic, min.50 µs

Timers/Counters and their retentive characteristics

Number of S7 counters256
S7 counter remanenceadjustable 0 up to 64
S7 counter remanence adjustableC0 .. C7
Number of S7 times256
S7 times remanenceadjustable 0 up to 128
S7 times remanence adjustablenot retentive

Data range and retentive characteristic

Number of flags8192 Bit
Bit memories retentive characteristic adjustableadjustable 0 up to 256
Bit memories retentive characteristic presetMB0 .. MB15
Number of data blocks2047
Max. data blocks size16 KB
Number range DBs1 ... 2047
Max. local data size per execution level1024 Byte
Max. local data size per block1024 Byte

Blocks

Number of OBs14
Maximum OB size16 KB
Total number DBs, FBs, FCs-
Number of FBs1024
Maximum FB size16 KB
Number range FBs0 ... 1023
Number of FCs1024
Maximum FC size16 KB
Number range FCs0 ... 1023
Maximum nesting depth per priority class8
Maximum nesting depth additional within an error OB1

Time

Real-time clock buffered
Clock buffered period (min.)30 d
Type of bufferingVanadium Rechargeable Lithium Battery
Load time for 50% buffering period20 h
Load time for 100% buffering period48 h
Accuracy (max. deviation per day)10 s
Number of operating hours counter8
Clock synchronization-
Synchronization via MPI-
Synchronization via Ethernet (NTP)-

Address areas (I/O)

Input I/O address area1024 Byte
Output I/O address area1024 Byte
Process image adjustable-
Input process image preset128 Byte
Output process image preset128 Byte
Input process image maximal128 Byte
Output process image maximal128 Byte
Digital inputs12
Digital outputs8
Digital inputs central12
Digital outputs central8
Integrated digital inputs8 (12
Integrated digital outputs8 (4
Analog inputs-
Analog outputs-
Analog inputs, central-
Analog outputs, central-
Integrated analog inputs-
Integrated analog outputs-

Communication functions

PG/OP channel
Global data communication
Number of GD circuits, max.4
Size of GD packets, max.22 Byte
S7 basic communication
S7 basic communication, user data per job76 Byte
S7 communication
S7 communication as server
S7 communication as client-
S7 communication, user data per job160 Byte
Number of connections, max.16

Functionality Sub-D interfaces

TypeMP²I
Type of interfaceRS485
ConnectorSub-D, 9-pin, female
Electrically isolated-
MPI
MP²I (MPI/RS232)
Point-to-point interface-
5V DC Power supplymax. 90mA, non-isolated
24V DC Power supplymax. 100mA, non-isolated

Functionality MPI

Number of connections, max.16
PG/OP channel
Routing-
Global data communication
S7 basic communication
S7 communication
S7 communication as server
S7 communication as client-
Transmission speed, min.19.2 kbit/s
Transmission speed, max.187.5 kbit/s

Housing

MaterialPPE / PA 6.6
MountingProfile rail 35 mm

Mechanical data

Dimensions (WxHxD)101.6 mm x 76 mm x 48 mm
Weight219 g

Environmental conditions

Operating temperature0 °C to 60 °C
Storage temperature-25 °C to 70 °C

Certifications

UL certificationyes
KC certification-

Downloads

[Datasheet]
[Manual]