| SIMATIC C7-621 ASI,COMPACT UNIT WITH INTEGRATED COMPONENTS: S7-300 CPU, OP 3 AND AS-INTERFACE (MASTER) |
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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 softkeys | 5 |
Supply voltage |
24 V DC | Yes |
permissible range, lower limit (DC) | 20.4 V |
permissible range, upper limit (DC) | 30.2 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; see instruction list |
FB |
Number, max. | 128; see instruction list |
FC |
Number, max. | 128; see instruction list |
OB |
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 |
Interfaces |
MPI |
Cable length, max. | 9100 m; without repeaters 50 m; with 2 repeaters: 1100 m; with 10 repeaters in series: 9100 m; via fiber optic cable: 23.8 km (with star hubs or OLMs) |
AS-Interface |
Number of AS-Interface masters, integrated | 1 |
1st interface |
Functionality |
MPI | Yes |
MPI |
Services |
Number of nodes, max. | 32; PG/PC, OP, C7, S7-300/400, M7 |
Transmission rate, max. | 187.5 kbit/s |
DP master |
Services |
Number of DP slaves, max. | 8 |
User data per DP slave |
User data per DP slave, max. | 64 byte |
Communication functions |
PG/OP communication | Yes |
Global data communication |
supported | Назад в раздел
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