| Article number | 6ES7312-1AE14-0AB0 |
| CPU312, 32KB |
| General information |
|
| HW functional status | 01 |
| Firmware version | V3.3 |
| 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 DC | Yes |
| 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 |
| I⊃2;t | 1 A⊃2;·s |
| Power loss |
|
| Power loss, typ. | 4 W |
| Memory |
|
| Work memory |
|
|
● integrated | 32 kbyte |
|
● expandable | No |
|
● Size of retentive memory for retentive data blocks | 32 kbyte |
| 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. | 0.1 µs |
| for word operations, typ. | 0.24 µs |
| for fixed point arithmetic, typ. | 0.32 µs |
| for floating point arithmetic, typ. | 1.1 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. | 32 kbyte |
| FB |
|
|
● Number, max. | 1 024; Number range: 0 to 7999 |
|
● Size, max. | 32 kbyte |
| FC |
|
|
● Number, max. | 1 024; Number range: 0 to 7999 |
|
● Size, max. | 32 kbyte |
| OB |
|
|
● Description | see instruction list |
|
● Size, max. | 32 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 |
|
— 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 in total | all (incl. memory bits, times, counters) |
| 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 |
|
|
● 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 | 256 |
|
— of which central | 256 |
|
● Outputs | 256 |
|
— of which central | 256 |
| Analog channels |
|
|
● Inputs | 64 |
|
— of which central | 64 |
|
● Outputs | 64 |
|
— of which central | 64 |
| Hardware configuration |
|
| Number of expansion units, max. | 0 |
| Number of DP masters |
|
|
● integrated | 0 |
|
● via CP | 4 |
| Number of operable FMs and CPs (recommended) |
|
|
● FM | 8 |
|
● CP, PtP | 8 |
|
● CP, LAN | 4 |
| Rack |
|
|
● Racks, max. | 1 |
|
● Modules per rack, max. | 8 |
| Time of day |
|
| Clock |
|
|
● Software clock | Yes |
|
● retentive and synchronizable | No; Buffered: No, Can be synchronized: Yes |
|
● Deviation per day, max. | 10 s; Typ.: 2 s |
|
● Behavior of the clock following POWER-ON | 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 |
|
● 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 | 1; MPI |
| Number of RS 422 interfaces | 0 |
| 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 |
