SIMATIC S7-300 – CPU315-2DP – Siemens PLC
$ 853.11
SKU: 6ES7315-2AH14-0AB0
The CPU 315-2 DP is a CPU with a medium-sized to large program memory and PROFIBUS DP master/slave interface. It is used in plants containing distributed automation structures in addition to a centralized I/O.
It is often used as the standard-PROFIBUS DP master in SIMATIC S7-300. The CPU can also be used as distributed intelligence (DP slave).
Siemens PLC S7-300 Product Specifications:
Article number | 6ES7315-2AH14-0AB0 |
CPU315-2DP, 256 KB | |
General information | |
HW functional status | 1 |
Firmware version | V3.3 |
Product function | |
● Isochronous mode | Yes |
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) | 850 mA |
Current consumption (in no-load operation), typ. | 150 mA |
Inrush current, typ. | 3.5 A |
I²t | 1 A²·s |
Power loss | |
Power loss, typ. | 4.5 W |
Memory | |
Work memory | |
● integrated | 256 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) |
● without battery | Yes; Program and data |
CPU processing times | |
for bit operations, typ. | 0.05 µs |
for word operations, typ. | 0.09 µs |
for fixed point arithmetic, typ. | 0.12 µs |
for floating point arithmetic, typ. | 0.45 µs |
CPU-blocks | |
Number of blocks (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 DPV1 alarm OBs | 3; OB 55, 56, 57 |
● Number of isochronous mode OBs | 1; OB 61 |
● 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 | 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 | 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. | 128 kbyte |
Flag | |
● Size, 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; 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 | 2 048 byte |
● Outputs | 2 048 byte |
of which distributed | |
— Inputs | 2 048 byte |
— Outputs | 2 048 byte |
Process image | |
● Inputs | 2 048 byte |
● Outputs | 2 048 byte |
● Inputs, adjustable | 2 048 byte |
● Outputs, adjustable | 2 048 byte |
● Inputs, default | 128 byte |
● Outputs, default | 128 byte |
Subprocess images | |
● Number of subprocess images, max. | 1 |
Digital channels | |
● Inputs | 16 384 |
— of which central | 1 024 |
● Outputs | 16 384 |
— of which central | 1 024 |
Analog channels | |
● Inputs | 1 024 |
— of which central | 256 |
● Outputs | 1 024 |
— of which central | 256 |
Hardware configuration | |
Number of expansion units, max. | 3 |
Number of DP masters | |
● integrated | 1 |
● 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 |
● to MPI, slave | Yes |
● to DP, master | Yes; With DP slave only slave clock |
● to DP, slave | Yes |
● in AS, master | Yes |
● in AS, slave | No |
Digital inputs | |
Number of digital inputs | 0 |
Digital outputs | |
Number of digital outputs | 0 |
Analog inputs | |
Number of analog inputs | 0 |
Analog outputs | |
Number of analog outputs | 0 |
Interfaces | |
Number of industrial Ethernet interfaces | 0 |
Number of PROFINET interfaces | 0 |
Number of RS 485 interfaces | 2; MPI and PROFIBUS DP |
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 slave | No |
● Point-to-point connection | No |
MPI | |
● Transmission rate, max. | 187.5 kbit/s |
Services | |
— PG/OP communication | Yes |
— Routing | Yes |
— 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 |
2. Interface | |
Interface type | Integrated RS 485 interface |
Isolated | Yes |
Interface types | |
● RS 485 | Yes |
● Output current of the interface, max. | 200 mA |
Protocols | |
● MPI | No |
● PROFIBUS DP master | Yes |
● PROFIBUS DP slave | Yes |
● Point-to-point connection | No |
PROFIBUS DP master | |
● Transmission rate, max. | 12 Mbit/s |
● Number of DP slaves, max. | 124; Per station |
Services | |
— PG/OP communication | Yes |
— Routing | Yes |
— Global data communication | No |
— S7 basic communication | Yes; I blocks only |
— S7 communication | Yes; Only server, configured on one side |
— S7 communication, as client | No |
— S7 communication, as server | Yes |
— Equidistance | Yes |
— Isochronous mode | Yes; OB 61 |
— SYNC/FREEZE | Yes |
— Activation/deactivation of DP slaves | Yes |
— Number of DP slaves that can be simultaneously activated/deactivated, max. | 8 |
— DPV1 | Yes |
Address area | |
— Inputs, max. | 2 048 byte |
— Outputs, max. | 2 048 byte |
User data per DP slave | |
— Inputs, max. | 244 byte |
— Outputs, max. | 244 byte |
PROFIBUS DP slave | |
● GSD file | The latest GSD file is available at: http://www.siemens.com/profibus-gsd |
● Transmission rate, max. | 12 Mbit/s |
● automatic baud rate search | Yes; only with passive interface |
● Address area, max. | 32 |
● User data per address area, max. | 32 byte |
Services | |
— PG/OP communication | Yes |
— Routing | Yes; Only with active interface |
— Global data communication | No |
— S7 basic communication | No |
— S7 communication | Yes; Only server, configured on one side |
— S7 communication, as client | No |
— S7 communication, as server | Yes |
— Direct data exchange (slave-to-slave communication) | Yes |
— DPV1 | No |
Transfer memory | |
— Inputs | 244 byte |
— Outputs | 244 byte |
Protocols | |
PROFIsafe | No |
communication functions / header | |
PG/OP communication | Yes |
Data record routing | 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. | 240 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. | 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 |
— adjustable | No |
— of which powerfail-proof | 100; Only the last 100 entries are retained |
● Number of entries readable in RUN, max. | |
— adjustable | Yes; From 10 to 499 |
— preset | 10 |
Service data | |
● can be read out | Yes |
Ambient conditions | |
Ambient temperature during operation | |
● min. | 0 °C |
● max. | 60 °C |
configuration / header | |
Configuration software | |
● STEP 7 | Yes; V5.2 SP1 or higher with HW update |
configuration / programming / header | |
● 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. | 290 g |
Weight | 0.331 kg |
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Dimensions | 13.1 × 15.3 × 5.2 cm |
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