General information
Product type designationCPU 313C
HW functional status01
Firmware versionV3.3
Engineering with
Programming packageSTEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203
Supply voltage
Rated value (DC)24 V
permissible range, lower limit (DC)19.2 V
permissible range, upper limit (DC)28.8 V
external protection for power supply lines (recommendation)Miniature circuit breaker, type C; min. 2 A; miniature circuit breaker type B, min. 4 A
Mains buffering
Mains/voltage failure stored energy time5 ms
Repeat rate, min.1 s
Digital inputs
— Rated value (DC)24 V
— Reverse polarity protectionYes
Digital outputs
— Rated value (DC)24 V
— Reverse polarity protectionNo
Input current
Current consumption (rated value)650 mA
Current consumption (in no-load operation), typ.150 mA
Inrush current, typ.5 A
I²t0.7 A²·s
Digital inputs
from load voltage L+ (without load), max.80 mA
Digital outputs
from load voltage L+, max.50 mA
Power loss
Power loss, typ.12 W
Work memory
integrated128 kbyte
expandableNo
Load memory
Plug-in (MMC)Yes
Plug-in (MMC), max.8 Mbyte
Data management on MMC (after last programming), min.10 a
Backup
presentYes; Guaranteed by MMC (maintenance-free)
without batteryYes; Program and data
CPU processing times
for bit operations, typ.0.07 µs
for word operations, typ.0.15 µs
for fixed point arithmetic, typ.0.2 µs
for floating point arithmetic, typ.0.72 µs
CPU-blocks
Number of elements (total)1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used.
DB
Number, max.1 024; Number range: 1 to 16000
Size, max.64 kbyte
FB
Number, max.1 024; Number range: 0 to 7999
Size, max.64 kbyte
FC
Number, max.1 024; Number range: 0 to 7999
Size, max.64 kbyte
OB
Number, max.see instruction list
Size, max.64 kbyte
Number of free cycle OBs1; OB 1
Number of time alarm OBs1; OB 10
Number of delay alarm OBs2; OB 20, 21
Number of cyclic interrupt OBs4; OB 32, 33, 34, 35
Number of process alarm OBs1; OB 40
Number of startup OBs1; OB 100
Number of asynchronous error OBs4; OB 80, 82, 85, 87
Number of synchronous error OBs2; OB 121, 122
Nesting depth
per priority class16
additional within an error OB4
S7 counter
Number256
Retentivity
— adjustableYes
— presetZ 0 to Z 7
Counting range
— lower limit0
— upper limit999
IEC counter
presentYes
TypeSFB
NumberUnlimited (limited only by RAM capacity)
S7 timer
Number256
Retentivity
— adjustableYes
— presetNo retentivity
Time range
— lower limit10 ms
— upper limit9 990 s
IEC timer
presentYes
TypeSFB
NumberUnlimited (limited only by RAM capacity)
Data areas and their retentivity
Retentive data area (incl. timers, counters, flags), max.64 kbyte
Flag
Size, max.256 byte
Retentivity availableYes; MB 0 to MB 255
Retentivity presetMB 0 to MB 15
Number of clock memories8; 1 memory byte
Data blocks
Retentivity adjustableYes; via non-retain property on DB
Retentivity presetYes
Local data
per priority class, max.32 kbyte; Max. 2048 bytes per block
I/O address area
Inputs1 024 byte
Outputs1 024 byte
of which distributed
— Inputsnone
— Outputsnone
Process image
Inputs1 024 byte
Outputs1 024 byte
Inputs, adjustable1 024 byte
Outputs, adjustable1 024 byte
Inputs, default128 byte
Outputs, default128 byte
Digital channels
Inputs1 016
— of which central1 016
Outputs1 008
— of which central1 008
Analog channels
Inputs253
— of which central253
Outputs250
— of which central250
Hardware configuration
Number of expansion units, max.3
Number of DP masters
integratednone
via CP4
Number of operable FMs and CPs (recommended)
FM8
CP, PtP8
CP, LAN6
Rack
Racks, max.4
Modules per rack, max.8; In rack 3 max. 7
Clock
Hardware clock (real-time)Yes
retentive and synchronizableYes
Backup time6 wk; At 40 °C ambient temperature
Deviation per day, max.10 s; Typ.: 2 s
Behavior of the clock following POWER-ONClock continues running after POWER OFF
Behavior of the clock following expiry of backup periodthe clock continues at the time of day it had when power was switched off
Operating hours counter
Number1
Number/Number range0
Range of values0 to 2^31 hours (when using SFC 101)
Granularity1 h
retentiveYes; Must be restarted at each restart
Clock synchronization
supportedYes
to MPI, masterYes
on MPI, deviceYes
in AS, masterYes
in AS, deviceNo
Digital inputs
Number of digital inputs24
of which inputs usable for technological functions12
integrated channels (DI)24
Input characteristic curve in accordance with IEC 61131, type 1Yes
horizontal installation
— up to 40 °C, max.24
— up to 60 °C, max.12
vertical installation
— up to 40 °C, max.12
Input voltage
Rated value (DC)24 V
for signal "0"-3 to +5V
for signal "1"+15 to +30 V
Input current
for signal "1", typ.8 mA
for standard inputs
— parameterizableYes; 0.1 / 0.3 / 3 / 15 ms (You can reconfigure the input delay of the standard inputs during program runtime. Please note that under certain circumstances your newly set filter time may not be effective until the next filter cycle.)
— Rated value3 ms
for technological functions
— at "0" to "1", max.16 µs; Minimum pulse width/minimum pause between pulses at maximum counting frequency
Cable length
shielded, max.1 000 m; 100 m for technological functions
unshielded, max.600 m; for technological functions: No
for technological functions
— shielded, max.100 m; at maximum count frequency
— unshielded, max.not allowed
Digital outputs
Number of digital outputs16
of which high-speed outputs4; Notice: You cannot connect the fast outputs of your CPU in parallel
integrated channels (DO)16
Short-circuit protectionYes; Clocked electronically
Response threshold, typ.1 A
Limitation of inductive shutdown voltage toL+ (-48 V)
Controlling a digital inputYes
Switching capacity of the outputs
on lamp load, max.5 W
Load resistance range
lower limit48 Ω
upper limit4 kΩ
Output voltage
for signal "1", min.L+ (-0.8 V)
Output current
for signal "1" rated value500 mA
for signal "1" permissible range, min.5 mA
for signal "1" permissible range, max.0.6 A
for signal "1" minimum load current5 mA
for signal "0" residual current, max.0.5 mA
Parallel switching of two outputs
for upratingNo
for redundant control of a loadYes
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
horizontal installation
— up to 40 °C, max.3 A
— up to 60 °C, max.2 A
vertical installation
— up to 40 °C, max.2 A
Cable length
shielded, max.1 000 m
unshielded, max.600 m
Analog inputs
Number of analog inputs4
For voltage/current measurement4
For resistance/resistance thermometer measurement1
integrated channels (AI)5; 4x current/voltage, 1x resistance
permissible input voltage for current input (destruction limit), max.5 V; Permanent
permissible input voltage for voltage input (destruction limit), max.30 V; Permanent
permissible input current for voltage input (destruction limit), max.0.5 mA; Permanent
permissible input current for current input (destruction limit), max.50 mA; Permanent
Electrical input frequency, max.400 Hz
No-load voltage for resistance-type transmitter, typ.3.3 V
Constant measurement current for resistance-type transmitter, typ.1.25 mA
Technical unit for temperature measurement adjustableYes; Degrees Celsius / degrees Fahrenheit / Kelvin
Input ranges
VoltageYes; ±10 V / 100 kΩ; 0 V to 10 V / 100 kΩ
CurrentYes; ±20 mA / 100 Ω; 0 mA to 20 mA / 100 Ω; 4 mA to 20 mA / 100 Ω
Resistance thermometerYes; Pt 100 / 10 MΩ
ResistanceYes; 0 Ω to 600 Ω / 10 MΩ
Input ranges (rated values), voltages
0 to +10 VYes
— Input resistance (0 to 10 V)100 kΩ
Input ranges (rated values), currents
0 to 20 mAYes
— Input resistance (0 to 20 mA)100 Ω
-20 mA to +20 mAYes
— Input resistance (-20 mA to +20 mA)100 Ω
4 mA to 20 mAYes
— Input resistance (4 mA to 20 mA)100 Ω
Input ranges (rated values), resistance thermometer
Pt 100Yes
— Input resistance (Pt 100)10 MΩ
Input ranges (rated values), resistors
0 to 600 ohmsYes
— Input resistance (0 to 600 ohms)10 MΩ
Temperature compensation
— ParameterizableNo
Characteristic linearization
ParameterizableYes; by software
— for resistance thermometerPt 100
Cable length
shielded, max.100 m
Analog outputs
integrated channels (AO)2
Voltage output, short-circuit protectionYes
Voltage output, short-circuit current, max.55 mA
Current output, no-load voltage, max.14 V
Output ranges, voltage
0 to 10 VYes
-10 V to +10 VYes
Output ranges, current
0 to 20 mAYes
-20 mA to +20 mAYes
4 mA to 20 mAYes
Connection of actuators
for voltage output two-wire connectionYes; Without compensation of the line resistances
for voltage output four-wire connectionNo
for current output two-wire connectionYes
Load impedance (in rated range of output)
with voltage outputs, min.1 kΩ
with voltage outputs, capacitive load, max.0.1 µF
with current outputs, max.300 Ω
with current outputs, inductive load, max.0.1 mH
Destruction limits against externally applied voltages and currents
Voltages at the outputs towards MANA16 V; Permanent
Current, max.50 mA; Permanent
Cable length
shielded, max.200 m
Analog value generation for the inputs
Measurement principleActual value encryption (successive approximation)
Integration and conversion time/resolution per channel
Resolution with overrange (bit including sign), max.12 bit
Integration time, parameterizableYes; 16.6 / 20 ms
Interference voltage suppression for interference frequency f1 in Hz50 / 60 Hz
Time constant of the input filter0.38 ms
Basic execution time of the module (all channels released)1 ms
Resolution with overrange (bit including sign), max.12 bit
Conversion time (per channel)1 ms
Settling time
for resistive load0.6 ms
for capacitive load1 ms
for inductive load0.5 ms
Connection of signal encoders
for voltage measurementYes
for current measurement as 2-wire transducerYes; with external supply
for current measurement as 4-wire transducerYes
for resistance measurement with two-wire connectionYes; Without compensation of the line resistances
for resistance measurement with three-wire connectionNo
for resistance measurement with four-wire connectionNo
Connectable encoders
2-wire sensorYes
— permissible quiescent current (2-wire sensor), max.1.5 mA
Errors/accuracies
Temperature error (relative to input range), (+/-)0.006 %/K
Crosstalk between the inputs, min.60 dB
Repeat accuracy in steady state at 25 °C (relative to input range), (+/-)0.06 %
Output ripple (relative to output range, bandwidth 0 to 50 kHz), (+/-)0.1 %
Linearity error (relative to output range), (+/-)0.15 %
Temperature error (relative to output range), (+/-)0.01 %/K
Crosstalk between the outputs, min.60 dB
Repeat accuracy in steady state at 25 °C (relative to output range), (+/-)0.06 %
Operational error limit in overall temperature range
Voltage, relative to input range, (+/-)1 %
Current, relative to input range, (+/-)1 %
Resistance, relative to input range, (+/-)1 %
Voltage, relative to output range, (+/-)1 %
Current, relative to output range, (+/-)1 %
Basic error limit (operational limit at 25 °C)
Voltage, relative to input range, (+/-)0.8 %; Linearity error ±0.06 %
Current, relative to input range, (+/-)0.8 %; Linearity error ±0.06 %
Resistance, relative to input range, (+/-)0.8 %; Linearity error ±0.2 %
Resistance thermometer, relative to input range, (+/-)0.8 %
Voltage, relative to output range, (+/-)0.8 %
Current, relative to output range, (+/-)0.8 %
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency
Series mode interference (peak value of interference < rated value of input range), min.30 dB
Common mode interference, min.40 dB
Interfaces
Number of PROFINET interfaces0
Number of RS 485 interfaces1; MPI
Number of RS 422 interfaces0
1. Interface
Interface typeIntegrated RS 485 interface
IsolatedNo
Interface types
RS 485Yes
Output current of the interface, max.200 mA
Protocols
MPIYes
PROFIBUS DP masterNo
PROFIBUS DP deviceNo
Point-to-point connectionNo
MPI
Transmission rate, max.187.5 kbit/s
Services
— PG/OP communicationYes
— RoutingNo
— Global data communicationYes
— S7 basic communicationYes
— S7 communicationYes; Only server, configured on one side
— S7 communication, as clientNo; but via CP and loadable FB
— S7 communication, as serverYes
Protocols
PROFIsafeNo
Communication functions
PG/OP communicationYes
Data record routingNo
Global data communication
supportedYes
Number of GD loops, max.8
Number of GD packets, max.8
Number of GD packets, transmitter, max.8
Number of GD packets, receiver, max.8
Size of GD packets, max.22 byte
Size of GD packet (of which consistent), max.22 byte
S7 basic communication
supportedYes
User data per job, max.76 byte
User data per job (of which consistent), max.76 byte; 76 bytes (with X_SEND or X_RCV); 64 bytes (with X_PUT or X_GET as server)
S7 communication
supportedYes
as serverYes
as clientYes; Via CP and loadable FB
User data per job, max.180 byte; With PUT/GET
User data per job (of which consistent), max.240 byte; as server
S5 compatible communication
supportedYes; via CP and loadable FC
Number of connections
overall8
usable for PG communication7
— reserved for PG communication1
— adjustable for PG communication, min.1
— adjustable for PG communication, max.7
usable for OP communication7
— reserved for OP communication1
— adjustable for OP communication, min.1
— adjustable for OP communication, max.7
usable for S7 basic communication4
— reserved for S7 basic communication0
— adjustable for S7 basic communication, min.0
— adjustable for S7 basic communication, max.4
S7 message functions
Number of login stations for message functions, max.8; Depending on the configured connections for PG/OP and S7 basic communication
Process diagnostic messagesYes
simultaneously active Alarm_S blocks, max.300
Test commissioning functions
Status blockYes; Up to 2 simultaneously
Single stepYes
Number of breakpoints4
Status/control
Status/control variableYes
VariablesInputs, outputs, memory bits, DB, times, counters
Number of variables, max.30
— of which status variables, max.30
— of which control variables, max.14
Forcing
ForcingYes
Forcing, variablesInputs, outputs
Number of variables, max.10
Diagnostic buffer
presentYes
Number of entries, max.500
— can be setNo
— of which powerfail-proof100; Only the last 100 entries are retained
Number of entries readable in RUN, max.499
— can be setYes; From 10 to 499
— preset10
Service data
Can be read outYes
Diagnostics indication LED
Status indicator digital input (green)Yes
Status indicator digital output (green)Yes
Integrated Functions
Number of counters3; See "Technological Functions" manual
Counting frequency, max.30 kHz
Frequency measurementYes
Number of frequency meters3; up to 30 kHz (see "Technological Functions" manual)
controlled positioningNo
integrated function blocks (closed-loop control)Yes; PID controller (see "Technological Functions" manual)
PID controllerYes
Number of pulse outputs3; Pulse width modulation up to 2.5 kHz (see "Technological Functions" Manual)
Limit frequency (pulse)2.5 kHz
Potential separation digital inputs
Potential separation digital inputsYes
between the channelsNo
between the channels and backplane busYes
Potential separation digital outputs
Potential separation digital outputsYes
between the channelsYes
between the channels, in groups of8
between the channels and backplane busYes
Potential separation analog inputs
Potential separation analog inputsYes; common for analog I/O
between the channelsNo
between the channels and backplane busYes
Potential separation analog outputs
Potential separation analog outputsYes; common for analog I/O
between the channelsNo
between the channels and backplane busYes
Isolation
Isolation tested with600 V DC
Ambient temperature during operation
min.0 °C
max.60 °C
Configuration software
STEP 7Yes; STEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203
STEP 7 LiteNo
Programming
Command setsee instruction list
Nesting levels8
System functions (SFC)see instruction list
System function blocks (SFB)see instruction list
Programming language
— LADYes
— FBDYes
— STLYes
— SCLYes
— CFCYes
— GRAPHYes
— HiGraph®Yes
Know-how protection
User program protection/password protectionYes
Block encryptionYes; With S7 block Privacy
Dimensions
Width120 mm
Height125 mm
Depth130 mm
Weights
Weight, approx.660 g