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Siemens 6ES73121AE140AB0
SIMATIC S7-300, CPU 312 Central processing unit with MPI, Integr. power supply 24 V DC, Work memory 32 KB, Micro Memory Card required
This Siemens 6ES73121AE140AB0 is supplied brand new by PartLogic for machine control, process automation, industrial communication, equipment maintenance and replacement applications. It forms part of our Industrial automation > Plc controllers > Modular plcs range and is referenced internally as PartLogic SKU PL27100675918.
Before ordering, please confirm the manufacturer part number, product specifications and compatibility with your existing equipment. If you are replacing a failed, obsolete or hard-to-find part, contact PartLogic and we can help check suitability or source related components.
Brand New - 12 Months Warranty
$451.55
(inc. GST)
In Stock
| Product type designation | CPU 312 |
| HW functional status | 01 |
| Firmware version | V3.3 |
| Programming package | STEP 7 V5.5 + SP1 or higher or STEP 7 V5.2 + SP1 or higher with HSP 218 |
| 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/voltage failure stored energy time | 5 ms |
| Repeat rate, min. | 1 s |
| 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, typ. | 4 W |
| integrated | 32 kbyte0 |
| expandable | No |
| Plug-in (MMC) | Yes |
| Plug-in (MMC), max. | 8 Mbyte |
| Data management on MMC (after last programming), min. | 10 a |
| present | Yes; Guaranteed by MMC (maintenance-free)Yes |
| without battery | Yes; Program and data |
| 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 |
| Number of blocks (total) | 1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used. |
| Number, max. | 1 024; Number range: 1 to 160001 024; Number range: 0 to 7999see instruction list |
| Size, max. | 32 kbyte256 byte |
| 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 |
| per priority class | 16 |
| additional within an error OB | 4 |
| Number | 256Unlimited (limited only by RAM capacity)1 |
| — adjustable | YesNoYes; From 10 to 499 |
| — preset | Z 0 to Z 7No retentivity10 |
| — lower limit | 010 ms |
| — upper limit | 9999 990 s |
| Type | SFB |
| Retentive data area (incl. timers, counters, flags), max. | 32 kbyte |
| Retentivity available | Yes; MB 0 to MB 255 |
| Retentivity preset | MB 0 to MB 15Yes |
| Number of clock memories | 8; 1 memory byte |
| Retentivity adjustable | Yes; via non-retain property on DB |
| per priority class, max. | 32 kbyte; Max. 2 KB per block |
| Inputs | 1 024 byte25664 |
| Outputs | 1 024 byte25664 |
| Inputs, adjustable | 1 024 byte |
| Outputs, adjustable | 1 024 byte |
| Inputs, default | 128 byte |
| Outputs, default | 128 byte |
| — of which central | 25664 |
| Number of expansion units, max. | 0 |
| via CP | 4 |
| FM | 8 |
| CP, PtP | 8 |
| CP, LAN | 4 |
| Racks, max. | 1 |
| Modules per rack, max. | 8 |
| 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 |
| 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 |
| supported | YesYes; via CP and loadable FC |
| to MPI, master | Yes |
| on MPI, device | Yes |
| in AS, master | Yes |
| in AS, device | No |
| Number of digital inputs | 0 |
| Number of digital outputs | 0 |
| Number of analog inputs | 0 |
| Number of PROFINET interfaces | 0 |
| Number of RS 485 interfaces | 1; MPI |
| Number of RS 422 interfaces | 0 |
| Interface type | Integrated RS 485 interface |
| Isolated | No |
| RS 485 | Yes |
| Output current of the interface, max. | 200 mA |
| MPI | Yes |
| PROFIBUS DP master | No |
| PROFIBUS DP device | No |
| Point-to-point connection | No |
| Transmission rate, max. | 187.5 kbit/s |
| — 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 |
| PROFIsafe | No |
| PG/OP communication | Yes |
| Data record routing | No |
| 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 |
| User data per job, max. | 76 byte180 byte; With PUT/GET |
| 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)240 byte; as server |
| as server | Yes |
| as client | Yes; Via CP and loadable FB |
| overall | 6 |
| usable for PG communication | 5 |
| — reserved for PG communication | 1 |
| — adjustable for PG communication, min. | 1 |
| — adjustable for PG communication, max. | 5 |
| usable for OP communication | 5 |
| — reserved for OP communication | 1 |
| — adjustable for OP communication, min. | 1 |
| — adjustable for OP communication, max. | 5 |
| usable for S7 basic communication | 2 |
| — reserved for S7 basic communication | 0 |
| — adjustable for S7 basic communication, min. | 0 |
| — adjustable for S7 basic communication, max. | 2 |
| Number of login stations for message functions, max. | 6; Depending on the configured connections for PG/OP and S7 basic communication |
| Process diagnostic messages | Yes |
| simultaneously active Alarm_S blocks, max. | 300 |
| Status block | Yes; Up to 2 simultaneously |
| Single step | Yes |
| Number of breakpoints | 4 |
| Status/control variable | Yes |
| Variables | Inputs, outputs, memory bits, DB, times, counters |
| Number of variables, max. | 3010 |
| — of which status variables, max. | 30 |
| — of which control variables, max. | 14 |
| Forcing | Yes |
| Forcing, variables | Inputs, outputs |
| Number of entries, max. | 500 |
| — of which powerfail-proof | 100; Only the last 100 entries are retained |
| Number of entries readable in RUN, max. | 499 |
| can be read out | Yes |
| min. | 0 °C |
| max. | 60 °C |
| STEP 7 | Yes; V5.2 SP1 or higher with HW update |
| Command set | see instruction list |
| Nesting levels | 8 |
| System functions (SFC) | see instruction list |
| System function blocks (SFB) | see instruction list |
| — LAD | Yes |
| — FBD | Yes |
| — STL | Yes |
| — SCL | Yes |
| — GRAPH | Yes |
| — HiGraph® | Yes |
| User program protection/password protection | Yes |
| Block encryption | Yes; With S7 block Privacy |
| Width | 40 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weight, approx. | 270 g |
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