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| 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 |
| I²t | 1 A²·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 |
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