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SIMATIC S7-300, CPU 313C-2 PTP COMPACT CPU WITH MPI, 16 DI/16 DO, 3 FAST COUNTERS (30 KHZ), INTEGRATED INTERFACE RS485, INTEGRATED 24V DC POWER SUPPLY, 32 KBYTE WORKING MEMORY, FRONT CONNECTOR (1 X 40PIN) AND MICRO MEMORY CARD REQUIRED |
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| General information |
| Hardware product version |
01 |
| Firmware version |
V2.0.0 |
| Engineering with |
| Programming package |
STEP 7 V5.2 SP1 or higher (with STEP 7 V5.1 SP3 or higher, please use predecessor CPU) |
| Supply voltage |
| 24 V DC |
Yes |
| permissible range, lower limit (DC) |
20.4 V |
| permissible range, upper limit (DC) |
28.8 V |
| Load voltage L+ |
| Rated value (DC) |
24 V |
| permissible range, lower limit (DC) |
20.4 V |
| permissible range, upper limit (DC) |
28.8 V |
| Input current |
| Current consumption (in no-load operation), typ. |
100 mA |
| Inrush current, typ. |
11 A |
| from supply voltage L+, max. |
700 mA |
| Power loss |
| Power loss, typ. |
10 W |
| Memory |
| Work memory |
| integrated |
32 kbyte; For program and data |
| expandable |
No |
| Load memory |
| Plug-in (MMC) |
Yes |
| Plug-in (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, typ. |
0.1 µs |
| for bit operations, max. |
0.2 µs |
| for word operations, typ. |
0.2 µs |
| for fixed point arithmetic, typ. |
2 µs |
| for floating point arithmetic, typ. |
3 µs |
| CPU-blocks |
| Number of blocks (total) |
1024; (DBs, FCs, FBs OBs, SDBs); the maximum number of loadable blocks can be reduced by the MMC being used. |
| DB |
| Number, max. |
511; Number range: 1 to 511 |
| Size, max. |
16 kbyte |
| FB |
| Number, max. |
512; Number range: 0 to 2047 |
| Size, max. |
16 kbyte |
| FC |
| Number, max. |
512; Number range: 0 to 2047 |
| Size, max. |
16 kbyte |
| OB |
| Number, max. |
see instruction list |
| Size, max. |
16 kbyte |
| 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 startup OBs |
1; OB 100 |
| Number of asynchronous error OBs |
1; OB 80 |
| 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 |
256 |
| 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 |
| Retentivity |
| adjustable |
Yes |
| lower limit |
0 |
| upper limit |
256 |
| 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 |
| 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; from DB1 to DB511 |
| Size, max. |
16 kbyte |
| Retentivity adjustable |
No |
| Retentivity preset |
Yes |
| Local data |
| per priority class, max. |
510 byte |
| Address area |
| I/O address area |
| Inputs |
1 kbyte |
| Outputs |
1 kbyte |
| Process image |
| Inputs |
128 byte |
| Outputs |
128 byte |
| Default addresses of the integrated channels |
| Digital inputs |
124.0 to 125.7 |
| Digital outputs |
124.0 to 125.7 |
| Digital channels |
| Inputs |
1008 |
| Outputs |
1008 |
| Inputs, of which central |
992 |
| Outputs, of which central |
992 |
| Analog channels |
| Inputs |
248 |
| Outputs |
124 |
| Inputs, of which central |
248 |
| Outputs, of which central |
248 |
| Hardware configuration |
| Expansion devices, max. |
3 |
| Number of DP masters |
| integrated |
No |
| via CP |
4 |
| Number of operable FMs and CPs (recommended) |
| FM |
8 |
| CP, point-to-point |
8 |
| CP, LAN |
6 |
| Rack |
| Racks, max. |
4 |
| Modules per rack, max. |
8; In rack 3 max. 7 |
| 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 |
| in AS, master |
Yes |
| Digital inputs |
| Number of digital inputs |
16 |
| integrated channels (DI) |
16 |
| 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. |
8 mA |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| parameterizable |
Yes; 0.1 / 0.3 / 3 / 15 ms |
| for counter/technological functions |
| at "0" to "1", max. |
8 µs |
| Cable length |
| Cable length, shielded, max. |
1000 m; 100 m for technological functions |
| Cable length unshielded, max. |
600 m |
| Digital outputs |
| Number of digital outputs |
16 |
| integrated channels (DO) |
16 |
| Short-circuit protection |
Yes; Clocked electronically |
| Limitation of inductive shutdown voltage to |
L+ (-48 V) |
| Output voltage |
| for signal "1", min. |
L+ (-0.8 V) |
| Output current |
| for signal "1" permissible range for 0 to 40 °C, max. |
500 mA |
| for signal "1" permissible range for 0 to 60 °C, max. |
500 mA |
| for signal "1" minimum load current |
5 mA |
| for signal "0" residual current, max. |
0.5 mA |
| Switching frequency |
| with resistive load, max. |
100 Hz |
| with inductive load, max. |
0.5 Hz |
| Total current of the outputs (per group) |
| all mounting positions |
| up to 40 °C, max. |
8 A |
| up to 60 °C, max. |
4 A |
| Cable length |
| Cable length, shielded, max. |
1000 m |
| Cable length unshielded, max. |
600 m |
| Analog inputs |
| integrated channels (AI) |
none |
| Encoder |
| Connectable encoders |
| 2-wire sensor |
Yes |
| permissible quiescent current (2-wire sensor), max. |
1.5 mA |
| Interfaces |
| MPI |
| Cable length, max. |
50 m; without repeater |
| Point-to-point |
| Cable length, max. |
1200 m |
| Integrated protocol driver |
| 3964 (R) |
Yes |
| ASCII |
Yes |
| Transmission rate, RS 422/485 |
| with 3964 (R) protocol, max. |
19.2 kbit/s |
| with ASCII protocol, max. |
19.2 kbit/s |
| 1. Interface |
| Interface type |
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 |
8 |
| Transmission rate, max. |
187.5 kbit/s |
| 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 |
| 2. Interface |
| Interface type |
Integrated RS 422/ 485 interface |
| Physics |
RS 422/RS 485 (X.27) |
| isolated |
Yes |
| Power supply to interface (15 to 30 V DC), max. |
No |
| Number of connection resources |
none |
| Functionality |
| MPI |
No |
| DP master |
No |
| DP slave |
No |
| Point-to-point connection |
Yes |
| DP master |
| Transmission rate, max. |
- |
| Number of DP slaves, max. |
- |
| DP slave |
| Number of connections |
- |
| GSD file |
- |
| Transmission rate, max. |
- |
| Point-to-point connection |
| Transmission rate, max. |
38.4 kbit/s half duplex; 19.2 kbit/s full duplex |
| Cable length, max. |
1200 m |
| Interface from the user program controllable |
Yes |
| Interface can trigger alarm/interrupt in the user program |
Yes; Message on break - identification |
| Protocol driver |
3964 (R); ASCII |
| 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; Server |
| 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 byte; 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 |
8 |
| usable for PG communication |
7 |
| reserved for PG communication |
1 |
| adjustable for PG communication, min. |
1 |
| adjustable for PG communication, max. |
7 |
| usable for OP communication |
7 |
| reserved for OP communication |
1 |
| adjustable for OP communication, min. |
1 |
| adjustable for OP communication, max. |
7 |
| usable for S7 basic communication |
4 |
| reserved for S7 basic communication |
4 |
| adjustable for S7 basic communication, min. |
0 |
| adjustable for S7 basic communication, max. |
4 |
| usable for routing |
No |
| 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 messages |
Yes |
| simultaneously active Alarm-S blocks, max. |
20 |
| Test commissioning functions |
| Status block |
Yes |
| Single step |
Yes |
| Number of breakpoints |
2 |
| 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 |
| Forcing, variables |
Inputs, outputs |
| Number of variables, max. |
10 |
| Integrated Functions |
| Number of counters |
3; 3 channels (see "Technological Functions" manual) |
| Counting frequency (counter) max. |
30 kHz |
| Frequency measurement |
Yes |
| Number of frequency meters |
3; 3 channels up to max. 30 kHz (see "Technological Functions" manual) |
| controlled positioning |
No |
| integrated function blocks (closed-loop control) |
PID controller (see "Technological Functions" manual) |
| PID controller |
Yes |
| Number of pulse outputs |
3; 3 channels pulse width modulation up to max. 2.5 kHz (see "Technological Functions" manual) |
| Limit frequency (pulse) |
2.5 kHz |
| Galvanic isolation |
| Galvanic isolation digital inputs |
| Galvanic isolation digital inputs |
Yes |
| between the channels, in groups of |
16 |
| between the channels and the backplane bus |
Yes |
| Galvanic isolation digital outputs |
| Galvanic isolation digital outputs |
Yes |
| between the channels, in groups of |
8 |
| between the channels and the backplane bus |
Yes |
| Configuration |
| Configuration software |
| STEP 7 |
Yes; V5.1 SP2 |
| Programming |
| Command set |
see instruction list |
| Nesting levels |
8 |
| System functions (SFC) |
see instruction list |
| System function blocks (SFB) |
see instruction list |
| Programming language |
| LAD |
Yes |
| FBD |
Yes |
| STL |
Yes |
| SCL |
Yes |
| GRAPH |
Yes |
| HiGraph® |
Yes |
| Know-how protection |
| User program protection/password protection |
Yes |
| Dimensions |
| Width |
120 mm |
| Height |
125 mm |
| Depth |
130 mm |
| Weights |
| Weight, approx. |
566 g |
| Status |
Jul 5, 2014 |
