| | SIMATIC DP, BASIC MODULE ET200X: BM147-2 CPU, 128KB WORK MEMORY FOR PREPROCESSING WITH INT. PLC FUNCTIONS, INT.PROFIBUS DP SLAVE IF WITH ADD. PROFIBUS DP MASTER IF, PROT. IP65/67 |
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| Supply voltage |
| Rated value (DC) | 24 V; Permissible range: 20.4 to 28.8 V |
| Reverse polarity protection | No |
| Short-circuit protection | Yes; internal (thermally reversible); no for looping through |
| Load voltage 2L+ |
| Rated value (DC) | 24 V; Permissible range: 20.4 to 28.8 V |
| Reverse polarity protection | No |
| Power losses |
| Power loss, typ. | 3 W |
| Memory |
| Work memory |
| integrated | 128 kbyte; 42 K instructions |
| expandable | No |
| Load memory |
| expandable FEPROM, max. | 8 Mbyte; can be plugged in as MMC |
| Backup |
| present | Yes; Guaranteed by MMC (maintenance-free) |
| CPU processing times |
| for bit operations, min. | 0.1 µs |
| for word operations, min. | 0.2 µs |
| for fixed point arithmetic, min. | 2 µs |
| for floating point arithmetic, min. | 3 µs |
| CPU-blocks |
| Number of blocks (total) | 1024; DBs, FCs, FBs |
| DB |
| Number, max. | 511 |
| Size, max. | 16 kbyte |
| FB |
| Number, max. | 512; In number range from FB 0 to FB 2047 |
| Size, max. | 16 kbyte |
| FC |
| Number, max. | 512; In number band of FC0 to FC2047 |
| Size, max. | 16 kbyte |
| OB |
| Description | see instruction list |
| Size, max. | 16 kbyte |
| Nesting depth |
| per priority class | 8 |
| additional within an error OB | 4 |
| Counters, timers and their retentivity |
| S7 counter |
| Number | 256 |
| Retentivity |
| adjustable | Yes |
| preset | Z 0 to Z 7 |
| Counting range |
| lower limit | 0 |
| upper limit | 999 |
| IEC counter |
| present | Yes; Number unlimited (limited only by work memory) |
| Type | SFB |
| S7 times |
| Number | 256 |
| Retentivity |
| adjustable | Yes |
| preset | No retentivity |
| Time range |
| lower limit | 10 ms |
| upper limit | 9990 s |
| IEC timer |
| present | Yes; Number unlimited (limited only by work memory) |
| Type | SFB |
| Data areas and their retentivity |
| retentive data area in total (incl. times, counters, flags), max. | all |
| Flag |
| Number, max. | 256 byte |
| Retentivity available | Yes |
| Retentivity preset | MB 0 to MB 15 |
| Number of clock memories | 8; 1 memory byte |
| Local data |
| per priority class, max. | 510 byte |
| Address area |
| I/O address area |
| Inputs | 1 kbyte |
| Outputs | 1 kbyte |
| Process image |
| Inputs | 128 byte |
| Outputs | 128 byte |
| Digital channels |
| Inputs | 8192 bits |
| Outputs | 8192 bits |
| Inputs, of which central | 56 bytes |
| Outputs, of which central | 56 bytes |
| Analog channels |
| Inputs | 512 words |
| Outputs | 512 words |
| Inputs, of which central | 14 words |
| Outputs, of which central | 14 words |
| Hardware configuration |
| Expansion modules |
| Number of expansion modules, max. | 7 |
| of which motor starters/frequency converters, max. | 6 |
| of which, pneumatic interfaces, max. | 6 |
| Time of day |
| Clock |
| Hardware clock (real-time clock) | Yes |
| battery-backed and synchronizable | Yes; Backup time typically 6 weeks (at 40 °C ambient temperature) |
| Deviation per day, max. | 10 s |
| Operating hours counter |
| Number | 1 |
| Number/Number range | 0 |
| Range of values | 0 to 2^31 hours (when using SFC 101) |
| Granularity | 1 hour |
| retentive | Yes; Must be restarted at each restart |
| Clock synchronization |
| supported | Yes |
| to MPI, slave | Yes |
| in AS, master | Yes |
| in AS, slave | Yes |
| 1st interface |
| Type of interface | Coexistent, integrated RS 485 interface |
| Physics | RS 485 |
| Isolated | Yes |
| Functionality |
| MPI | Yes |
| DP master | Yes |
| DP slave | Yes; active / passive |
| Point-to-point connection | No |
| MPI |
| Services |
| PG/OP communication | Yes |
| Routing | Yes |
| Global data communication | Yes |
| S7 basic communication | Yes |
| S7 communication | Yes |
S7
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