6AG1314-1AG14-7AB0
SIPLUS S7-300 CPU 314 based on 6ES7314-1AG14-0AB0 with conformal coating, -25…+70 °C, central processing unit with MPI, integrated power supply 24 V DC, work memory 128 KB, Micro Memory Card required
Siemens spare part — S7-300 product cancellation (PM410, 1 October 2025); available as a spare part until 2033.
Categorie de produs
CPUProducător
SIEMENSSerie de produse
S7-300| General information | |
|---|---|
| Product type designation | CPU 314 |
| based on | 6ES7314-1AG14-0AB0 |
| Engineering with | |
| Programming package | STEP 7 V5.5 + SP1 or higher or STEP 7 V5.2 + SP1 or higher with HSP 218 |
| 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) | 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 loss | |
| Power loss, typ. | 4 W |
| Storage | |
| Work memory | |
| integrated | 128 kbyte |
| 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. | 0.06 µs |
| for word operations, typ. | 0.12 µs |
| for fixed point arithmetic, typ. | 0.16 µs |
| for floating point arithmetic, typ. | 0.59 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 OBs | 1; OB 1 |
| Number of time alarm OBs | 1; OB 10 |
| Number of delay alarm OBs | 2; OB 20, 21 |
| Number of cyclic 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 |
| 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 timer | |
| Number | 256 |
| Retentivity | |
| adjustable | Yes |
| preset | No retentivity |
| Time range | |
| lower limit | 10 ms |
| upper limit | 9 990 s |
| IEC timer | |
| present | Yes |
| Type | SFB |
| Number | Unlimited (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 available | Yes; MB 0 to MB 255 |
| Retentivity preset | MB 0 to MB 15 |
| Number of clock memories | 8; 1 memory byte |
| Data blocks | |
| Retentivity adjustable | Yes; via non-retain property on DB |
| Retentivity preset | Yes |
| Local data | |
| per priority class, max. | 32 kbyte; Max. 2 KB per block |
| Address area | |
| I/O address area | |
| Inputs | 1 024 byte |
| Outputs | 1 024 byte |
| Process image | |
| Inputs | 1 024 byte |
| Outputs | 1 024 byte |
| Inputs, adjustable | 1 024 byte |
| Outputs, adjustable | 1 024 byte |
| Inputs, default | 128 byte |
| Outputs, default | 128 byte |
| Digital channels | |
| Inputs | 1 024 |
| of which central | 1 024 |
| Outputs | 1 024 |
| of which central | 1 024 |
| Analog channels | |
| Inputs | 256 |
| of which central | 256 |
| Outputs | 256 |
| of which central | 256 |
| Hardware configuration | |
| Number of expansion units, max. | 3 |
| Number of DP masters | |
| integrated | 0 |
| via CP | 4 |
| Number of operable FMs and CPs (recommended) | |
| FM | 8 |
| CP, PtP | 8 |
| CP, LAN | 10 |
| Rack | |
| Racks, max. | 4 |
| Modules per rack, max. | 8 |
| Time of day | |
| Clock | |
| Hardware clock (real-time) | Yes |
| retentive and synchronizable | Yes |
| Backup time | 6 wk; At 40 °C ambient temperature |
| Deviation per day, max. | 10 s; Typ.: 2 s |
| Behavior of the clock following POWER-ON | Clock continues running after POWER OFF |
| Behavior of the clock following expiry of backup period | the clock continues at the time of day it had when power was switched off |
| Operating hours counter | |
| Number | 1 |
| Number/Number range | 0 |
| Range of values | 0 to 2^31 hours (when using SFC 101) |
| Granularity | 1 h |
| retentive | Yes; Must be restarted at each restart |
| Clock synchronization | |
| supported | Yes |
| to MPI, master | Yes |
| on MPI, device | Yes |
| in AS, master | Yes |
| in AS, device | No |
| Digital inputs | |
| Number of digital inputs | 0 |
| Digital outputs | |
| Number of digital outputs | 0 |
| Analog inputs | |
| Number of analog inputs | 0 |
| Interfaces | |
| Number of PROFINET interfaces | 0 |
| Number of RS 485 interfaces | 1; MPI |
| Number of RS 422 interfaces | 0 |
| 1. Interface | |
| Interface type | Integrated RS 485 interface |
| Isolated | No |
| Interface types | |
| RS 485 | Yes |
| Output current of the interface, max. | 200 mA |
| Protocols | |
| MPI | Yes |
| PROFIBUS DP master | No |
| PROFIBUS DP device | No |
| Point-to-point connection | No |
| MPI | |
| 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; Only server, configured on one side |
| S7 communication, as client | No |
| S7 communication, as server | Yes |
| Protocols | |
| PROFIsafe | No |
| 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 block | Yes; Up to 2 simultaneously |
| Single step | Yes |
| Number of breakpoints | 4 |
| 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 |
| Diagnostic buffer | |
| present | Yes |
| Number of entries, max. | 500 |
| can be set | No |
| of which powerfail-proof | 100; Only the last 100 entries are retained |
| Number of entries readable in RUN, max. | 499 |
| can be set | Yes; From 10 to 499 |
| preset | 10 |
| Service data | |
| Can be read out | Yes |
| Standards, approvals, certificates | |
| CE mark | Yes |
| UL approval | Yes; File E239877 |
| RCM (formerly C-TICK) | Yes |
| KC approval | Yes |
| EAC (formerly Gost-R) | Yes |
| Use in hazardous areas | |
| ATEX marking | Yes |
| Ambient conditions | |
| Ambient temperature during operation | |
| min. | -25 °C; = Tmin |
| max. | 70 °C; = Tmax; 60 °C @ UL/cUL, ATEX and FM use |
| Ambient temperature during storage/transportation | |
| min. | -40 °C |
| max. | 70 °C |
| Altitude during operation relating to sea level | |
| Installation altitude above sea level, max. | 5 000 m |
| Ambient air temperature-barometric pressure-altitude | Tmin ... Tmax at 1 140 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax -20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m) |
| Relative humidity | |
| With condensation, tested in accordance with IEC 60068-2-38, max. | 100 %; RH incl. condensation/frost (no commissioning under condensation conditions) |
| Resistance | |
| Use in stationary industrial systems | |
| to biologically active substances according to EN 60721-3-3 | Yes; Class 3B2 mold, fungus and dry rot spores (with the exception of fauna); Class 3B3 on request |
| to chemically active substances according to EN 60721-3-3 | Yes; Class 3C4 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); * |
| to mechanically active substances according to EN 60721-3-3 | Yes; Class 3S4 incl. sand, dust, * |
| Use on ships/at sea | |
| to biologically active substances according to EN 60721-3-6 | Yes; Class 6B2 mold and fungal spores (excluding fauna); Class 6B3 on request |
| to chemically active substances according to EN 60721-3-6 | Yes; Class 6C3 (RH < 75 %) incl. salt spray acc. to EN 60068-2-52 (severity degree 3); * |
| to mechanically active substances according to EN 60721-3-6 | Yes; Class 6S3 incl. sand, dust; * |
| Usage in industrial process technology | |
| Against chemically active substances acc. to EN 60654-4 | Yes; Class 3 (excluding trichlorethylene) |
| Environmental conditions for process, measuring and control systems acc. to ANSI/ISA-71.04 | Yes; Level GX group A/B (excluding trichlorethylene; harmful gas concentrations up to the limits of EN 60721-3-3 class 3C4 permissible); level LC3 (salt spray) and level LB3 (oil) |
| Remark | |
| Note regarding classification of environmental conditions acc. to EN 60721, EN 60654-4 and ANSI/ISA-71.04 | * The supplied plug covers must remain in place over the unused interfaces during operation! |
| Configuration | |
| Configuration software | |
| STEP 7 | Yes; V5.2 SP1 or higher with HW update |
| 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 |
| CFC | Yes |
| GRAPH | Yes |
| HiGraph® | Yes |
| 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 |
| Weights | |
| Weight, approx. | 280 g |
| Approvals / Certificates | |