| SIMATIC S7-300, CPU 315T-2 DP, CENTRAL PROCESSING UNIT FOR PLC AND TECHNOLOGY 128 KBYTE WORKING MEMORY, 1. INTERFACE MPI/DP 12MBIT/S 2. INTERFACE DP(DRIVE), INTEGRATED I/O FOR TECHNOLOGY FRONT CONNECTOR (1 X 40PIN) AND MICRO MEMORY CARD MIN. 4MB NECESSARY |
| General information |
| HW functional status | 01 |
| Firmware version | CPU: V2.3.1, integrated technology: V3.1.1 |
| Engineering with |
| Programming package | STEP 7 V 5.3 SP1 or higher and S7-Technology option package V2.0 |
| Supply voltage |
| Rated value (DC) | |
| 24 V DC | Yes |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| external protection for power supply lines (recommendation) | 2 A min. |
| Load voltage L+ |
| Rated value (DC) | 24 V |
| Reverse polarity protection | No |
| Input current |
| Current consumption (in no-load operation), typ. | 200 mA |
| Inrush current, typ. | 2.5 A |
| I²t | 1 A²·s |
| Power loss |
| Power loss, typ. | 6 W |
| Memory |
| 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 y |
| Backup |
| present | Yes; Guaranteed by MMC (maintenance-free) |
| Battery |
| Backup battery |
| Backup time, max. | 10 y; Data retention on the MMC (after last programming) |
| CPU processing times |
| for bit operations, typ. | 0.1 µs |
| for bit operations, max. | 0.1 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) | 1 024 |
| DB |
| Number, max. | 1 023; DB 0 reserved |
| Size, max. | 16 kbyte |
| FB |
| Number, max. | 2 048; see instruction list |
| Size, max. | 16 kbyte |
| FC |
| Number, max. | 2 048; see instruction list |
| Size, max. | 16 kbyte |
| OB |
| Number, max. | see instruction list |
| Size, max. | 16 kbyte |
| Number of free cycle OBs | 1 |
| Number of time alarm OBs | 1 |
| Number of delay alarm OBs | 1 |
| Number of cyclic interrupt OBs | 1 |
| Number of process alarm OBs | 1 |
| Number of startup OBs | 1 |
| Number of asynchronous error OBs | 1 |
| Number of synchronous error OBs | 2 |
| Nesting depth |
| per priority class | 8 |
| 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 |
| — adjustable | Yes |
| — 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 |
| — 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 in total | 1024 (DBs, FCs, FBs). The maximum number of loadable blocks can be reduced by the MMC that you use. |
| Flag |
| Number, max. | 2 048 byte |
| Retentivity available | Yes; MB 0 to MB 2 047 |
| Retentivity preset | MB 0 to MB 15 |
| Number of clock memories | 8; 1 memory byte |
| Data blocks |
| Retentivity adjustable | Yes |
| Local data |
| per priority class, max. | 1 024 byte |
| Address area |
| I/O address area |
| Inputs | 2 kbyte |
| Outputs | 2 kbyte |
| of which distributed |
| — Inputs | 2 kbyte |
| — Outputs | 2 kbyte |
| Process image |
| Inputs | 128 byte |
| Outputs | 128 byte |
| Digital channels |
| Inputs | 16 384 |
| — of which central | 256 |
| Outputs | 16 384 |
| — of which central | 256 |
| Analog channels |
| Inputs | 1 024 |
| — of which central | 64 |
| Outputs | 1 024 |
| — of which central | 64 |
| Hardware configuration |
| Number of DP masters |
| integrated | 2; 1 DP and 1 DP (drive) |
| via CP | 2; for DP |
| Number of operable FMs and CPs (recommended) |
| FM | 8 |
| CP, PtP | 8 |
| CP, LAN | 10 |
| Rack |
| Racks, max. | 1 |
| 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 |
| 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 |
| to MPI, slave | Yes |
| in AS, master | Yes |
| in AS, slave | Yes |
| Digital inputs |
| Number of digital inputs | 4 |
| Functions | technological functions, e.g. reference point detection (BERO); digital inputs can also be used (with restrictions) in STEP 7 user program. |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Number of simultaneously controllable inputs |
| all mounting positions |
| — up to 40 °C, max. | 4 |
| — up to 60 °C, max. | 4 |
| Input voltage |
| Rated value (DC) | 24 V |
| for signal "0" | -3 to +5V |
| for signal "1" | +15 to +30V |
| Input current |
| for signal "1", typ. | 7 mA |
| Input delay (for rated value of input voltage) |
| for technological functions |
| — at "0" to "1", max. | 10 µs; Typical |
| — at "1" to "0", max. | 10 µs; Typical |
| Cable length |
| shielded, max. | 1 000 m |
| unshielded, max. | 600 m |
| Digital outputs |
| Number of digital outputs | 8 |
| Functions | For technology functions, e.g. high-speed cam switch signals |
| Short-circuit protection | Yes |
| Response threshold, typ. | 1 A |
| Limitation of inductive shutdown voltage to | 2L+ (-48 V) |
| Controlling a digital input | No |
| Switching capacity of the outputs |
| on lamp load, max. | 5 W |
| Load resistance range |
| lower limit | 48 Ω |
| upper limit | 4 kΩ |
| Output voltage |
| for signal "0", max. | 3 V |
| for signal "1", min. | 2L+ (-2,5 V) |
| Output current |
| for signal "1" rated value | 0.5 A |
| for signal "1" permissible range for 0 to 60 °C, min. | 5 mA |
| for signal "1" permissible range for 0 to 60 °C, max. | 0.6 A |
| for signal "0" residual current, max. | 0.3 mA |
| Parallel switching of two outputs |
| for uprating | No |
| for redundant control of a load | No |
| Switching frequency |
| with resistive load, max. | 100 Hz |
| with inductive load, max. | 0.2 Hz; According to IEC 60947-5-1, DC-13 |
| on lamp load, max. | 100 Hz |
| Total current of the outputs (per group) |
| horizontal installation |
| — up to 40 °C, max. | 4 A |
| — up to 60 °C, max. | 3 A |
| all other mounting positions |
| — up to 40 °C, max. | 3 A |
| Cable length |
| shielded, max. | 1 000 m |
| unshielded, max. | 600 m |
| Encoder |
| Connectable encoders |
| 2-wire sensor | No |
| 1. Interface |
| Interface type | Integrated RS 485 interface |
| Physics | RS 485 |
| Isolated | Yes |
| Power supply to interface (15 to 30 V DC), max. | 200 mA |
| Protocols |
| MPI | Yes |
| PROFIBUS DP master | Yes |
| PROFIBUS DP slave | Yes |
| Point-to-point connection | No |
| MPI |
| Transmission rate, max. | 12 Mbit/s |
| Services |
| — PG/OP communication | Yes |
| — Routing | Yes |
| — Global data communication | Yes |
| — S7 basic communication | Yes |
| — S7 communication | Yes |
| — S7 communication, as client | Yes; Via CP and loadable FB |
| — S7 communication, as server | Yes |
| PROFIBUS DP master |
| Transmission rate, max. | 12 Mbit/s |
| Number of DP slaves, max. | 124 |
| Services |
| — PG/OP communication | Yes |
| — Routing | Yes |
| — Global data communication | No |
| — S7 basic communication | No |
| — S7 communication | No |
| — Equidistance | Yes |
| — SYNC/FREEZE | Yes |
| — DPV1 | Yes |
| Address area |
| — Inputs, max. | 244 kbyte; 244 byte per DP slave |
| — Outputs, max. | 244 kbyte; 244 byte per DP slave |
| PROFIBUS DP slave |
| Transmission rate, max. | 12 Mbit/s |
| automatic baud rate search | No |
| Address area, max. | 32 |
| User data per address area, max. | 32 byte |
| Services |
| — Routing | Yes |
| — Global data communication | No |
| — S7 basic communication | No |
| — S7 communication | No |
| — Direct data exchange (slave-to-slave communication) | Yes |
| — DPV1 | No |
| Transfer memory |
| — Inputs | 244 byte |
| — Outputs | 244 byte |
| 2. Interface |
| Interface type | Integrated RS 485 interface |
| Physics | RS 485 |
| Isolated | Yes |
| Power supply to interface (15 to 30 V DC), max. | 200 mA |
| Protocols |
| MPI | No |
| PROFIBUS DP master | Yes; DP(DRIVE)-Master |
| PROFIBUS DP slave | No |
| Point-to-point connection | No |
| PROFIBUS DP master |
| Transmission rate, max. | 12 Mbit/s |
| Number of DP slaves, max. | 32 |
| Services |
| — PG/OP communication | No |
| — Routing | No |
| — Global data communication | No |
| — S7 basic communication | No |
| — S7 communication | No |
| — Equidistance | Yes |
| — SYNC/FREEZE | No |
| — Activation/deactivation of DP slaves | No |
| — DPV1 | No |
| Address area |
| — Inputs, max. | 244 kbyte; 244 byte per DP slave |
| — Outputs, max. | 244 kbyte; 244 byte per DP slave |
| Communication functions |
| PG/OP communication | Yes |
| 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. | 64 byte; as server |
| S5 compatible communication |
| supported | Yes; via CP and loadable FC |
| Number of connections |
| overall | 16 |
| usable for PG communication | 15 |
| — reserved for PG communication | 1 |
| — adjustable for PG communication, min. | 1 |
| — adjustable for PG communication, max. | 15 |
| usable for OP communication | 15 |
| — reserved for OP communication | 1 |
| — adjustable for OP communication, min. | 1 |
| — adjustable for OP communication, max. | 15 |
| usable for S7 basic communication | 12 |
| — reserved for S7 basic communication | 0 |
| — adjustable for S7 basic communication, min. | 0 |
| — adjustable for S7 basic communication, max. | 12 |
| S7 message functions |
| Number of login stations for message functions, max. | 16; 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 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 |
| Diagnostic buffer |
| present | Yes |
| Number of entries, max. | 100 |
| — adjustable | No |
| Interrupts/diagnostics/status information |
| Alarms | No |
| Diagnostics function | No |
| Diagnostics indication LED |
| Status indicator digital input (green) | Yes |
| Status indicator digital output (green) | Yes |
| Potential separation |
| Potential separation digital inputs |
| between the channels and backplane bus | Yes |
| Potential separation digital outputs |
| between the channels and backplane bus | Yes |
| Permissible potential difference |
| between different circuits | 75 V DC/60 V AC |
| Isolation |
| Isolation tested with | 500 V DC |
| Configuration |
| Configuration software |
| STEP 7 | Yes; V5.2 SP1 or higher and S7 Technology option package |
| 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 |
| Cycle time monitoring |
| lower limit | 1 ms |
| upper limit | 6 000 ms |
| adjustable | Yes |
| preset | 150 ms |
| Dimensions |
| Width | 160 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weights |
| Weight, approx. | 750 g |
| last modified: | 03/13/2019 |
