Siemens 6ES73125BF040AB0
SIMATIC S7-300, CPU 312C COMPACT CPU WITH MPI, 10 DI,6 DO, 2 FAST COUNTERS (10 KHZ), INTEGRATED 24V DC POWER SUPPLY, 64 KBYTE WORKING MEMORY, FRONT CONNECTOR (1 X 40PIN) AND MICRO MEMORY CARD REQUIRED
This Siemens 6ES73125BF040AB0 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 PL27100686359.
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.
| Product type designation | CPU 312C |
| HW functional status | 01 |
| Firmware version | V3.3 |
| Programming package | STEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203 |
| 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) | Miniature circuit breaker, type C; min. 2 A; miniature circuit breaker type B, min. 4 A |
| Mains/voltage failure stored energy time | 5 ms |
| Repeat rate, min. | 1 s |
| — Rated value (DC) | 24 V |
| — Reverse polarity protection | No |
| Current consumption (rated value) | 570 mA |
| Current consumption (in no-load operation), typ. | 90 mA |
| Inrush current, typ. | 5 A |
| I²t | 0.7 A²·s |
| from load voltage L+, max. | 25 mA |
| Power loss, typ. | 8 W |
| integrated | 64 kbytenone |
| 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. | 64 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. | 64 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. 2048 bytes per block |
| Inputs | 1 024 byte26664 |
| Outputs | 1 024 byte26264 |
| — Inputs | none |
| — Outputs | none |
| Inputs, adjustable | 1 024 byte |
| Outputs, adjustable | 1 024 byte |
| Inputs, default | 128 byte |
| Outputs, default | 128 byte |
| — Digital inputs | 124.0 to 125.1 |
| — Digital outputs | 124.0 to 124.5 |
| — of which central | 26626264 |
| 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 | 10 |
| of which inputs usable for technological functions | 8 |
| integrated channels (DI) | 10 |
| Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| — up to 40 °C, max. | 1052 A1.5 A |
| — up to 60 °C, max. | 51.5 A |
| for signal "0" | -3 to +5V |
| for signal "1" | +15 to +30 V |
| for signal "1", typ. | 8 mA |
| — parameterizable | Yes; 0.1 / 0.3 / 3 / 15 ms (You can reconfigure the input delay of the standard inputs during program runtime. Please note that under certain circumstances your newly set filter time may not be effective until the next filter cycle.) |
| — Rated value | 3 ms |
| — at "0" to "1", max. | 48 µs; Minimum pulse width/minimum pause between pulses at maximum counting frequency |
| shielded, max. | 1 000 m; 100 m for technological functions1 000 m |
| unshielded, max. | 600 m; for technological functions: No600 m |
| — shielded, max. | 100 m; at maximum count frequency |
| — unshielded, max. | not allowed |
| Number of digital outputs | 6 |
| of which high-speed outputs | 2; Notice: You cannot connect the fast outputs of your CPU in parallel |
| integrated channels (DO) | 6 |
| Short-circuit protection | Yes; Clocked electronically |
| Response threshold, typ. | 1 A |
| Limitation of inductive shutdown voltage to | L+ (-48 V) |
| Controlling a digital input | Yes |
| on lamp load, max. | 5 W100 Hz |
| lower limit | 48 Ω |
| upper limit | 4 kΩ |
| for signal "1", min. | L+ (-0.8 V) |
| for signal "1" rated value | 500 mA |
| for signal "1" permissible range, min. | 5 mA |
| for signal "1" permissible range, max. | 0.6 A |
| for signal "1" minimum load current | 5 mA |
| for signal "0" residual current, max. | 0.5 mA |
| for uprating | No |
| for redundant control of a load | Yes |
| with resistive load, max. | 100 Hz |
| with inductive load, max. | 0.5 Hz |
| of the pulse outputs, with resistive load, max. | 2.5 kHz |
| Number of analog inputs | 0 |
| integrated channels (AI) | 0 |
| integrated channels (AO) | 0 |
| 2-wire sensor | Yes |
| — permissible quiescent current (2-wire sensor), max. | 1.5 mA |
| 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; but via CP and loadable FB |
| — 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 |
| Status indicator digital input (green) | Yes |
| Status indicator digital output (green) | Yes |
| Number of counters | 2; See "Technological Functions" manual |
| Counting frequency, max. | 10 kHz |
| Frequency measurement | Yes |
| Number of frequency meters | 2; up to 10 kHz (see "Technological Functions" manual) |
| controlled positioning | No |
| integrated function blocks (closed-loop control) | No |
| PID controller | No |
| Number of pulse outputs | 2; Pulse width modulation up to 2.5 kHz (see "Technological Functions" Manual) |
| Limit frequency (pulse) | 2.5 kHz |
| Potential separation digital inputs | Yes |
| between the channels | No |
| between the channels and backplane bus | Yes |
| Potential separation digital outputs | Yes |
| Isolation tested with | 600 V DC |
| min. | 0 °C |
| max. | 60 °C |
| STEP 7 | Yes; STEP 7 V5.5 + SP1 or higher or STEP 7 V5.3 + SP2 or higher with HSP 203 |
| STEP 7 Lite | No |
| 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 | 80 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weight, approx. | 410 g |
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