| SIMATIC S7-300, CPU 314 CPU WITH MPI INTERFACE, INTEGRATED 24V DC POWER SUPPLY, 128 KBYTE WORKING MEMORY, MICRO MEMORY CARD NECESSARY |
| General information |
| Hardware product version | 01 |
| Firmware version | V3.3 |
| [nicht versorgt: TAK_ABW067_001_000] |
| associated programming package | STEP 7 V5.5 + SP1 or higher or STEP7 V5.2 + SP1 or higher with HSP 218 |
| Supply voltage |
| 24 V DC | Yes |
| permissible range, lower limit (DC) | 19.2 V |
| permissible range, upper limit (DC) | 28.8 V |
| External protection for supply cables (recommendation) | 2 A min. |
| Mains buffering |
| Mains/voltage failure stored energy time | 5 ms |
| Repeat rate, min. | 1 s |
| Input current |
| Current consumption (rated value) | 650 mA |
| Current consumption (in no-load operation), typ. | 140 mA |
| Inrush current, typ. | 3.5 A |
| I²t | 1 A²·s |
| Power losses |
| Power loss, typ. | 4 W |
| Memory |
| Work memory |
| integrated | 128 Kibyte |
| expandable | No |
| Size of retentive memory for retentive data blocks | 64 Kibyte |
| 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. | 0.06 µs |
| for word operations, min. | 0.12 µs |
| for fixed point arithmetic, min. | 0.16 µs |
| for floating point arithmetic, min. | 0.59 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. | 1024; Number range: 1 to 16000 |
| Size, max. | 64 Kibyte |
| FB |
| Number, max. | 1024; Number range: 0 to 7999 |
| Size, max. | 64 Kibyte |
| FC |
| Number, max. | 1024; Number range: 0 to 7999 |
| Size, max. | 64 Kibyte |
| OB |
| Description | see instruction list |
| Size, max. | 64 Kibyte |
| Number of free cycle OBs | 1; OB 1 |
| Number of time alarm OBs | 1; OB 10 |
| Number of delay alarm OBs | 2; OB 20, 21 |
| Number of time interrupt OBs | 4; OB 32, 33, 34, 35 |
| Number of process alarm OBs | 1; OB 40 |
| Number of startup OBs | 1; OB 100 |
| Number of asynchronous error OBs | 4; OB 80, 82, 85, 87 |
| Number of synchronous error OBs | 2; OB 121, 122 |
| Nesting depth |
| per priority class | 16 |
| additional within an error OB | 4 |
| Counters, timers and their retentivity |
| S7 counter |
| Number | 256 |
| Retentivity |
| adjustable | Yes |
| lower limit | 0 |
| upper limit | 255 |
| preset | Z 0 to Z 7 |
| 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 | 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. | 1024; Number range: 1 to 16000 |
| Size, max. | 64 Kibyte |
| Retentivity adjustable | Yes; via non-retain property on DB |
| Retentivity preset | Yes |
| Local data |
| per priority class, max. | 32 Kibyte; Max. 2 KB per block |
| Address area |
| I/O address area |
| Inputs | 1024 byte |
| Outputs | 1024 byte |
| Process image |
| Inputs | 1024 byte |
| Outputs | 1024 byte |
| Inputs, adjustable | 1024 byte |
| Outputs, adjustable | 1024 byte |
| Inputs, default | 128 byte |
| Outputs, default | 128 byte |
| Digital channels |
| Inputs | 1024 |
| Outputs | 1024 |
| Inputs, of which central | 1024 |
| Outputs, of which central | 1024 |
| Analog channels |
| Inputs | 256 |
| Outputs | 256 |
| Inputs, of which central | 256 |
| Outputs, of which central | 256 |
| Hardware configuration |
| Racks, max. | 4 |
| Modules per rack, max. | 8 |
| Expansion devices, max. | 3 |
| Number of DP masters |
| integrated | 0 |
| 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; Typ.: 2 s |
| Backup time | 6 wk; At 40 °C ambient temperature |
| Behavior of the clock following POWER-ON | Clock continues running after POWER OFF |
| Behavior of the clock following expiry of backup period | Clock continues to run with the time at which the power failure occurred |
| 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 |
| in AS, slave | No |
| 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 |
| 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 |
| Services |
| PG/OP communication | Yes |
| Routing | No |
| Global data communication | Yes |
| S7 basic communication | Yes |
| S7 communication | Yes; Only server, configured on one side |
| S7 communication, as client | No |
| S7 communication, as server | Yes |
| Transmission rate, max. | 187.5 kbit/s |
| Communication functions |
| PG/OP communication | Yes |
| Data record routing | No |
| Global data communication |
| supported | Yes |
| 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 |
| 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 byte; With PUT/GET |
| User data per job (of which consistent), max. | 240 byte; as server |
| 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 |
| 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. | 300 |
| 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; Up to 2 simultaneously |
| Single step | Yes |
| Number of breakpoints | 4 |
| Diagnostic buffer |
| present | Yes |
| Number of entries, max. | 500 |
| adjustable | No |
| Of which powerfail-proof | 100; Only the last 100 entries are retained |
| Number of entries readable in RUN, max. | 499 |
| adjustable | Yes; From 10 to 499 |
| preset | 10 |
| Service data |
| Can be read out | Yes |
| Ambient conditions |
| Operating temperature |
| Min. | 0 °C |
| max. | 60 °C |
| Configuration |
| Configuration software |
| STEP 7 | Yes; V5.2 SP1 or higher with HW update |
| programming |
| Programming language |
| LAD | Yes |
| FBD | Yes |
| STL | Yes |
| SCL | Yes |
| CFC | Yes |
| GRAPH | Yes |
| HiGraph® | Yes |
| Command set | see instruction list |
| Nesting levels | 8 |
| Software libraries |
| System functions (SFC) | see instruction list |
| System function blocks (SFB) | see instruction list |
| Know-how protection |
| User program protection/password protection | Yes |
| Block encryption | Yes; With S7 block Privacy |
| Dimensions |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weight |
| Weight, approx. | 280 g |
