| | SIMATIC C7-621, COMPACT UNIT WITH INTEGRATED COMPONENTS: S7-300 CPU, OP 3, IM 621, 16DI, 16DO, 4AI, 1AO |
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| Operator control and monitoring |
| Password protection | Yes |
| Graphics object |
| Number of process images | 40 |
| Number of variables in message text, max. | 8 |
| Entries per process image | 20 |
| Password levels | 9 |
| Operating / fault messages |
| Number of lines | 2 |
| Number of characters per line | 20 |
| Character size | 5 mm |
| Operating messages, max. | 499 |
| Scroll operating messages, max. | 50 |
| Number of symbol/character sets | 1 |
| Display |
| Design of display | LCD backlit |
| Resolution (pixels) |
| dynamic objects | Input, output, input/output fields, date/time fields, symbolic input/output fields |
| Backlighting |
| MTBF backlighting (at 20 °C) | 100000 h; about 11 years |
| Control elements |
| Keyboard fonts |
| Number of function keys | 0 |
| Number of softkeys | 5 |
| Supply voltage |
| 24 V DC | Yes |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 30.2 V |
| Load voltage L+ |
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 20.4 V |
| permissible range, upper limit (DC) | 28.8 V |
| Input current |
| Current consumption, typ. | 0.3 mA |
| Current consumption, max. | 1 A |
| Power losses |
| Power loss, typ. | 8 W |
| Memory |
| Work memory |
| integrated | 32 kbyte; 10 K instructions RAM (integrated) |
| Load memory |
| integrated FEPROM, max. | 48 kbyte |
| integrated RAM, max. | 48 kbyte |
| Backup |
| without battery | Yes; 144 bytes: Parameterizable for bit memories, counters, data |
| CPU processing times |
| for bit operations, min. | 0.3 µs |
| for bit operations, max. | 0.6 µs |
| for word operations, min. | 1 µs |
| for fixed point arithmetic, min. | 2 µs |
| for floating point arithmetic, min. | 50 µs |
| for timer/counter operations, min. | 12 µs |
| CPU-blocks |
| DB |
| Number, max. | 127; DB 0 reserved |
| FB |
| Number, max. | 128; see instruction list |
| FC |
| Number, max. | 128; see instruction list |
| OB |
| Number, max. | see instruction list |
| Number of free cycle OBs | 1; OB 1 |
| Number of process alarm OBs | 1; OB 40 |
| Number of startup OBs | 1; OB 100 |
| Number of asynchronous error OBs | 7; OB 80, 81, 82, 85, 87, 121, 122 |
| Nesting depth |
| per priority class | 8 |
| Counters, timers and their retentivity |
| S7 counter |
| Number | 64 |
| of which retentive without battery |
| adjustable | Yes |
| lower limit | 0 |
| upper limit | 31 |
| Counting range |
| lower limit | 0 |
| upper limit | 999 |
| S7 times |
| Number | 128 |
| of which retentive without battery |
| adjustable | Yes |
| lower limit | 0 |
| upper limit | 63 |
| Time range |
| lower limit | 1 s |
| upper limit | 9990 s |
| Data areas and their retentivity |
| Flag |
| Number, max. | 256 byte |
| Retentivity available | Yes |
| of which retentive without battery | 0 to 1023 |
| Address area |
| I/O address area |
| Inputs | 78 kbyte |
| Outputs | 78 kbyte |
| Process image |
| Inputs | 124 byte |
| Outputs | 124 byte |
| Hardware configuration |
| Rack, number of rows, max. | 1 |
| Number of modules per system, max. | 8; per ET 200M |
| Connectable programming devices/PCs | SIMATIC PG/PC, standard PC |
| Number of modules per DP slave interface, max. | 8; 64 byte address space per DP-station |
| Number of DP masters |
| integrated | 0 |
| via CP | 1; CP 342-5 |
| Number of operable FMs and CPs (recommended) |
| FM | 4 |
| CP, point-to-point | 2 |
| CP, LAN | 1 |
| Expansion modules |
| Number of expansion modules, max. | 4 |
| Analog inputs/outputs, max. | 37 |
| Digital inputs/outputs, max. | 160 |
| Time of day |
| Clock |
| Software clock | Yes |
| Digital inputs |
| Number/binary inputs | 16 |
| Input voltage |
| Rated value, DC | 24 V |
| for signal "0" | -3 to +5 V |
| for signal "1" | 15 to 30 V |
| Input current |
| for signal "1", typ. | 11.5 mA |
| Input delay (for rated value of input voltage) |
| for standard inputs |
| at "0" to "1", max. | 4.8 ms; Назад в раздел
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