SIMATIC S7-300, CPU 314C-2DP COMPACT CPU WITH MPI, 24 DI/16 DO, 4AI, 2AO, 1 PT100, 4 FAST COUNTERS (60 KHZ), INTEGRATED DP INTERFACE, INTEGRATED 24V DC POWER SUPPLY, 96 KBYTE WORKING MEMORY, FRONT CONNECTOR (2 X 40PIN) AND MICRO MEMORY CARD REQUIRED |
General information |
Hardware product version | 01 |
Firmware version | V2.6 |
[nicht versorgt: TAK_ABW067_001_000] |
associated programming package | STEP 7 V5.3 SP2 or higher with HW update |
Supply voltage |
24 V DC | Yes |
permissible range, lower limit (DC) | 20.4 V |
permissible range, upper limit (DC) | 28.8 V |
External protection for supply cables (recommendation) | Miniature circuit breaker, type C; min 2 A; miniature circuit breaker type B, min. 4 A |
Load voltage L+ |
Rated value (DC) | 24 V |
permissible range, lower limit (DC) | 20.4 V |
permissible range, upper limit (DC) | 28.8 V |
Digital inputs |
Load voltage L+ |
Rated value (DC) | 24 V |
Reverse polarity protection | Yes |
Digital outputs |
Load voltage L+ |
Rated value (DC) | 24 V |
Reverse polarity protection | No |
Analog outputs |
Load voltage L+ |
Rated value (DC) | 24 V |
Reverse polarity protection | Yes |
Input current |
Current consumption (rated value) | 1000 mA |
Current consumption (in no-load operation), typ. | 150 mA |
Inrush current, typ. | 11 A |
I²t | 0.7 A²·s |
from supply voltage L+, max. | 1000 mA |
Digital inputs |
from load voltage L+ (without load), max. | 70 mA |
Digital outputs |
from load voltage L+, max. | 100 mA |
Power losses |
Power loss, typ. | 14 W |
Memory |
Work memory |
integrated | 96 Kibyte |
expandable | No |
Load memory |
pluggable (MMC) | Yes |
pluggable (MMC), max. | 8 Mbyte |
Data management on MMC (after last programming), min. | 10 a |
Backup |
present | Yes; Guaranteed by MMC (maintenance-free) |
without battery | Yes; Program and data |
CPU processing times |
for bit operations, min. | 0.1 µs |
for bit operations, max. | 0.2 µs |
for word operations, min. | 0.2 µs |
for fixed point arithmetic, min. | 2 µs |
for floating point arithmetic, min. | 3 µs |
CPU-blocks |
Number of blocks (total) | 1024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used. |
DB |
Number, max. | 511; Number range: 1 to 511 |
Size, max. | 16 Kibyte |
FB |
Number, max. | 1024; Number range: 0 to 2047 |
Size, max. | 16 Kibyte |
FC |
Number, max. | 1024; Number range: 0 to 2047 |
Size, max. | 16 Kibyte |
OB |
Size, max. | 16 Kibyte |
Number of free cycle OBs | 1; OB 1 |
Number of time alarm OBs | 1; OB 10 |
Number of delay alarm OBs | 1; OB 20 |
Number of time interrupt OBs | 1; OB 35 |
Number of process alarm OBs | 1; OB 40 |
Number of DPV1 alarm OBs | 3; OB 55, 56, 57 |
Number of startup OBs | 1; OB 100 |
Number of asynchronous error OBs | 5; OB 80, 82, 85, 86, 87 |
Number of synchronous error OBs | 2; OB 121, 122 |
Nesting depth |
per priority class | 8 |
additional within an error OB | 4 |
Counters, timers and their retentivity |
S7 counter |
Number | 256 |
of which retentive without battery |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
preset | 8 |
Retentivity |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
preset | 8 |
Counting range |
lower limit | 0 |
upper limit | 999 |
IEC counter |
present | Yes |
Type | SFB |
Number | Unlimited (limited only by RAM capacity) |
S7 times |
Number | 256 |
of which retentive without battery |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
Retentivity |
adjustable | Yes |
lower limit | 0 |
upper limit | 255 |
preset | No retentivity |
Time range |
lower limit | 10 ms |
upper limit | 9990 s |
IEC timer |
present | Yes |
Type | SFB |
Number | Unlimited (limited only by RAM capacity) |
Data areas and their retentivity |
retentive data area, total | All, max. 64 KB |
Flag |
Number, max. | 256 byte |
Retentivity available | Yes; MB 0 to MB 255 |
Retentivity preset | MB 0 to MB 15 |
Number of clock memories | 8; 1 memory byte |
Data blocks |
Number, max. | 511; Number range: 1 to 511 |
Size, max. | 16 Kibyte |
Retentivity adjustable | Yes; via non-retain property on DB |
Retentivity preset | Yes |
Local data |
per priority class, max. | 510 byte |
Address area |
I/O address area |
Inputs | 1 Kibyte |
Outputs | 1 Kibyte |
of which, distributed |
Inputs | 979 byte |
Outputs | 986 byte |
Process image |
Inputs | 128 byte |
Outputs | 128 byte |
Default addresses of the integrated channels |
Digital inputs | 124,0 to 126,7 |
Digital outputs | 124.0 to 125.7 |
Analog inputs | 752 to 761 |
Analog outputs | 752 to 755 |
Digital channels |
Inputs | 7856 |
Outputs | 7904 |
Inputs, of which central | 1016 |
Outputs, of which central | 1008 |
Analog channels |
Inputs | 494 |
Outputs | 495 |
Inputs, of which central | 253 |
Outputs, of which central | 250 |
Hardware configuration |
Racks, max. | 4 |
Modules per rack, max. | 8; In rack 3 max. 7 |
Expansion devices, max. | 3 |
Number of DP masters |
integrated | 1 |
via CP | 4 |
Number of operable FMs and CPs (recommended) |
FM | 8 |
CP, point-to-point | 8 |
CP, LAN | 10 |
Time of day |
Clock |
Hardware clock (real-time clock) | Yes |
battery-backed and synchronizable | Yes |
Deviation per day, max. | 10 s |
Backup time | 6 wk; At 40 °C ambient temperature |
Operating hours counter |
Number | 1 |
Number/Number range | 0 |
Range of values | 0 to 2^31 hours (when using SFC 101) |
Granularity | 1 hour |
retentive | Yes; Must be restarted at each restart |
Clock synchronization |
supported | Yes |
to MPI, master | Yes |
to MPI, slave | Yes |
to DP, master | Yes; With DP slave only slave clock |
to DP, slave | Yes |
in AS, master | Yes |
Digital inputs |
Number/binary inputs | 24 |
of which, inputs usable for technological functions | 16 |
integrated channels (DI) | 24 |
Input characteristic curve acc. to IEC 1131, Type 1 | Yes |
Number of simultaneously controllable inputs |
horizontal installation |
up to 40 °C, max. | 24 |
up to 60 °C, max. | 12 |
vertical installation |
up to 40 °C, max. | 12 |
Technological functions |
shielded, max. | 50 m |
Unshielded, max. | not allowed |
Standard DI |
shielded, max. | 1000 m |
Unshielded, max. | 600 m |
Input voltage |
Type of voltage / of the 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 |
Parameterizable | Yes; 0.1 / 0.3 / 3 / 15 ms |
Rated value | 3 ms |
for counter/technological functions |
at "0" to "1", max. | 8 µs |
Cable length |
Cable length, shielded, max. | 1000 m; 50 m for technological functions |
Cable length unshielded, max. | 600 m; For technological functions: No |
Digital outputs |
Number/binary outputs | 16 |
of which high-speed outputs | 4 |
integrated channels (DO) | 16 |
Functionality/short-circuit strength | 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 outputs (per group) |
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 |
Load resistance range |
lower limit | 48 Ω |
upper limit | 4 kΩ |
Cable length |
Cable length, shielded, max. | 1000 m |
Cable length unshielded, max. | 600 m |
Analog inputs |
Integrated channels (AI) | 4+1 |
Number of analog inputs for voltage/current measurement | 4 |
Number of analog inputs for resistance/temperature measurement | 1 |
permissible input frequency 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 |
Technical unit for temperature measurement adjustable | Yes; Degrees Celsius / degrees Fahrenheit / Kelvin |
Input ranges |
Current | Yes |
Resistance thermometer | Yes; Pt 100 / 10 MΩ |
Resistance | Yes |
Input ranges (rated values), voltages |
0 to +10 V | Yes |
Input resistance (0 to 10 V) | 100 kΩ |
Input ranges (rated values), currents |
0 to 20 mA | Yes |
Input resistance (0 to 20 mA) | 100 Ω |
-20 to +20 mA | Yes |
Input resistance (-20 to +20 mA) | 100 Ω |
4 to 20 mA | Yes |
Input resistance (4 to 20 mA) | 100 Ω |
Input ranges (rated values), resistance thermometers |
Pt 100 | Yes |
Input resistance (Pt 100) | 10 MΩ |
Input ranges (rated values), resistors |
No-Load voltage, typ. | 2.5 V |
Measured current, typ. | 1.8 to 3.3 mA |
0 to 600 ohms | Yes |
Input resistance (0 to 600 ohms) | 10 MΩ |
Resistance thermometer (RTD) |
Characteristic linearization |
for resistance thermometer | Pt 100 |
Characteristic linearization |
Parameterizable | Yes; by software |
Temperature compensation |
Parameterizable | No |
Cable length |
Cable length, shielded, max. | 100 m |
Analog outputs |
Number of analog outputs | 2 |
Integrated channels (AO) | 2 |
Voltage output, short-circuit protection | Yes |
Voltage output, short-circuit current, max. | 55 mA |
Current output, no-load voltage, max. | 17 V |
Output ranges, voltage |
0 to 10 V | Yes |
-10 to +10 V | Yes |
Output ranges, current |
0 to 20 mA | Yes |
-20 to +20 mA | Yes |
4 to 20 mA | Yes |
Connection of actuators |
for voltage output 2-conductor connection | Yes; Without compensation of the line resistances |
for voltage output 4-conductor connection | No |
for current output 2-conductor connection | Yes |
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 MANA | 16 V; Permanent |
Current, max. | 50 mA; Permanent |
[nicht versorgt: TAK_ABT299_001_000] |
Cable length, shielded, max. | 200 m |
Analog value creation |
Measurement principle | Actual value encryption (successive approximation) |
Integrations and conversion time/ resolution per channel |
Resolution with overrange (bit including sign), max. | 12 bit |
Integration time, parameterizable | Yes; 2.5 / 16.6 / 20 ms |
permissible input frequency, max. | 400 Hz |
Interference voltage suppression for interference frequency f1 in Hz | 400 / 60 / 50 Hz |
Conversion time (per channel) | 1 ms |
Time constant of the input filter | 0.38 ms |
Basic execution time of the module (all channels released) | 1 ms |
Settling time |
for resistive load | 0.6 ms |
for capacitive load | 1 ms |
for inductive load | 0.5 ms |
Encoder |
Connection of signal encoders |
for voltage measurement | Yes |
for current measurement as 2-wire transducer | Yes; with external supply |
for current measurement as 4-wire transducer | Yes |
for resistance measurement with 2-conductor connection | Yes; Without compensation of the line resistances |
for resistance measurement with 3-conductor connection | No |
for resistance measurement with 4-conductor connection | No |
Connectable encoders |
2-wire BEROS | Yes |
permissible quiescent current (2-wire BEROS), max. | 1.5 mA |
Errors/accuracies |
Temperature error (relative to input area) | +/- 0,006 %/K |
Crosstalk between the inputs, min. | 60 dB |
Repeat accuracy in settled status at 25 °C (relative to input area) | +/- 0,06 % |
Output ripple (based on output area, bandwidth 0 to 50 kHz) | +/- 0,1 % |
Linearity error (relative to output area) | +/- 0,15 % |
Temperature error (relative to output area) | +/- 0,01 %/K |
Crosstalk between the outputs, min. | 60 dB |
Repeat accuracy in settled status at 25 °C (relative to output area) | +/- 0,06 % |
Operational limit in overall temperature range |
Voltage, relative to input area | +/- 1 % |
Current, relative to input area | +/- 1 % |
Impedance, relative to input area | +/- 5 % |
Voltage, relative to output area | +/- 1 % |
Current, relative to output area | +/- 1 % |
Basic error limit (operational limit at 25 °C) |
Voltage, relative to input area | +/- 0,7 %; Linearity error +/- 0.06 % |
Current, relative to input area | +/- 0,7 %; Linearity error +/- 0.06 % |
Impedance, relative to input area | +/- 3 %; Linearity error +/- 0.2% |
Resistance-type thermometer, relative to input area | +/- 3 % |
Voltage, relative to output area | +/- 0,7 % |
Current, relative to output area | +/- 0,7 % |
Interference voltage suppression for f = n x (fl +/- 1%), fl = 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 USB interfaces | 0 |
Number of parallel interfaces | 0 |
Number of 20 mA interfaces (TTY) | 0 |
Number of RS 232 interfaces | 0 |
Number of RS 422 interfaces | 0 |
Number of other hardware interfaces | 0 |
MPI |
Cable length, max. | 50 m; without repeater |
1st interface |
Type of interface | Integrated RS 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 connection | No |
MPI |
Number of connections | 12 |
Services |
PG/OP communication | Yes |
Routing | Yes |
Global data communication | Yes |
S7 basic communication | Yes |
S7 communication | Yes |
S7 communication, as client | No |
S7 communication, as server | Yes |
Transmission rate, max. | 187.5 kbit/s |
2nd interface |
Type of interface | Integrated RS 485 interface |
Physics | RS 485 |
Isolated | Yes |
Power supply to interface (15 to 30 V DC), max. | 200 mA |
Media redundancy |
Number of connection resources | 12 |
Functionality |
MPI | No |
DP master | Yes |
DP slave | Yes |
PROFINET IO Controller | No |
PROFINET CBA | No |
Local Operating Network | No |
DP master |
Number of connections, max. | 12; For PG/OP communication |
Services |
PG/OP communication | Yes |
Routing | Yes |
Global data communication | No |
S7 basic communication | Yes; I blocks only |
S7 communication | Yes |
S7 communication, as client | No |
S7 communication, as server | Yes |
Equidistance mode support | Yes |
Isochronous mode | No |
SYNC/FREEZE | Yes |
Activation/deactivation of DP slaves | Yes |
Direct data exchange (slave-to-slave communication) | Yes |
DPV1 | Yes |
Transmission rate, max. | 12 Mbit/s |
Number of DP slaves, max. | 32 |
Address area |
Inputs, max. | 1 Kibyte |
Outputs, max. | 1 Kibyte |
User data per DP slave |
Inputs, max. | 244 byte |
Outputs, max. | 244 byte |
DP slave |
Number of connections | 12 |
Services |
PG/OP communication | Yes |
Routing | Yes; Only with active interface |
Global data communication | No |
S7 basic communication | No |
S7 communication | Yes |
S7 communication, as client | No |
S7 communication, as server | Yes |
Direct data exchange (slave-to-slave communication) | Yes |
DPV1 | No |
GSD file | The latest GSD file is available at: http://www.siemens.de/profibus-gsd |
Transmission rate, max. | 12 Mbit/s |
Automatic baud rate search | Yes; only with passive interface |
Transfer memory |
Inputs | 244 byte |
Outputs | 244 byte |
Address area, max. | 32 |
User data per address area, max. | 32 byte |
Communication functions |
PG/OP communication | Yes |
Global data communication |
supported | Yes |
Number of GD loops, max. | 4 |
Number of GD packets, max. | 4 |
Number of GD packets, transmitter, max. | 4 |
Number of GD packets, receiver, max. | 4 |
Size of GD packets, max. | 22 byte |
Size of GD packet (of which consistent), max. | 22 byte |
S7 basic communication |
supported | Yes |
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 |
supported | Yes |
as server | Yes |
as client | Yes; Via CP and loadable FB |
User data per job, max. | 180 Kibyte; With PUT/GET |
User data per job (of which consistent), max. | 64 byte |
S5-compatible communication |
supported | Yes; via CP and loadable FC |
Number of connections |
overall | 12 |
usable for PG communication | 11 |
reserved for PG communication | 1 |
Adjustable for PG communication, min. | 1 |
Adjustable for PG communication, max. | 11 |
usable for OP communication | 11 |
reserved for OP communication | 1 |
adjustable for OP communication, min. | 1 |
adjustable for OP communication, max. | 11 |
usable for S7 basic communication | 8 |
Reserved for S7 basic communication | 0 |
adjustable for S7 basic communication, min. | 0 |
adjustable for S7 basic communication, max. | 8 |
usable for routing | 4; max. |
S7 message functions |
Number of login stations for message functions, max. | 12; Depending on the configured connections for PG/OP and S7 basic communication |
Process diagnostic messages | Yes |
simultaneously active Alarm-S blocks, max. | 40 |
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 variables, max. | 30 |
of which control variables, 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 |
Interrupts/diagnostics/status information |
Diagnostics indication LED |
Status indicator digital output (green) | Yes |
Status indicator digital input (green) | Yes |
Integrated Functions |
Number of counters | 4; See "Technological Functions" manual |
Counter frequency (counter) max. | 60 kHz |
Frequency measurement | Yes |
Number of frequency meters | 4; up to 60 kHz (see "Technological Functions" manual) |
controlled positioning | Yes |
Integrated function blocks (closed-loop control) | PID controller (see "Technological Functions" manual) |
PID controller | Yes
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