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SIMATIC C7-621, COMPACT UNIT WITH INTEGRATED COMPONENTS: S7-300 CPU, OP 3, IM 621, 16DI, 16DO, 4AI, 1AO |
| Operator control and monitoring |
| Password protection |
Yes |
| Password levels |
9 |
| Process images |
| ● Number of process images |
40 |
| ● Number of variables in message text, max. |
8 |
| ● Entries per process image |
20 |
| 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 |
| dynamic objects |
Input, output, input/output fields, date/time fields, symbolic input/output fields |
| Backlighting |
| ● MTBF backlighting (at 20 °C) |
100 000 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 loss |
| 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, typ. |
0.3 µs |
| for bit operations, max. |
0.6 µs |
| for word operations, typ. |
1 µs |
| for fixed point arithmetic, typ. |
2 µs |
| for floating point arithmetic, typ. |
50 µs |
| for timer/counter operations, typ. |
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 |
9 990 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 |
| Number of modules per system, max. |
8; per ET 200M |
| Number of modules per DP slave interface, max. |
8; 64 byte address space per DP-station |
| connectable programming devices/PCs |
SIMATIC PG/PC, standard PC |
| 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 |
| Rack |
| ● Rack, number of rows, max. |
1 |
| Time of day |
| Clock |
| ● Software clock |
Yes |
| Digital inputs |
| Number of digital 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; typically 3 ms |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m |
| ● Cable length unshielded, max. |
600 m |
| Digital outputs |
| Number of digital outputs |
16 |
| Short-circuit protection |
Yes; Clocked electronically |
| Limitation of inductive shutdown voltage to |
48 V |
| Switching capacity of the outputs |
| ● Lamp load, max. |
5 W |
| Output voltage |
| ● for signal "1", min. |
L (-0.8 V) |
| Output current |
| ● for signal "1" rated value |
0.5 A |
| ● for signal "1" minimum load current |
5 mA |
| ● for signal "0" residual current, max. |
0.5 mA |
| Switching frequency |
| ● with resistive load, max. |
100 Hz |
| ● with inductive load, max. |
0.5 Hz |
| Total current of the outputs (per group) |
| all mounting positions |
| — up to 20 °C, max. |
4 A |
| — up to 40 °C, max. |
2 A |
| Cable length |
| ● Cable length, shielded, max. |
1 000 m |
| ● Cable length unshielded, max. |
600 m |
| Analog inputs |
| Number of analog inputs |
4 |
| permissible input voltage for voltage input (destruction limit), max. |
30 V |
| permissible input current for current input (destruction limit), max. |
30 mA |
| Input ranges |
| ● Voltage |
Yes |
| ● Current |
Yes |
| Input ranges (rated values), voltages |
| ● -10 V to 10 V |
Yes |
| ● Input resistance (-10 V to 10 V) |
50 kΩ |
| Input ranges (rated values), currents |
| ● -20 to 20 mA |
Yes |
| ● Input resistance (-20 to 20 mA) |
105.5 Ω |
| Analog outputs |
| Number of analog outputs |
1 |
| Voltage output, short-circuit protection |
Yes |
| Voltage output, short-circuit current, max. |
11 mA |
| Current output, no-load voltage, max. |
15 V |
| Cycle time (all channels) max. |
0.5 ms |
| Output ranges, voltage |
| ● -10 to 10 V |
Yes |
| Output ranges, current |
| ● -20 to 20 mA |
Yes |
| Load impedance (in rated range of output) |
| ● with voltage outputs, min. |
2 kΩ |
| ● with voltage outputs, capacitive load, max. |
1 µF |
| ● with current outputs, max. |
0.5 kΩ |
| ● with current outputs, inductive load, max. |
1 mH |
| Cable length |
| ● Cable length, shielded, max. |
100 m |
| Analog value generation |
| Integration and conversion time/resolution per channel |
| ● Resolution with overrange (bit including sign), max. |
12 bit |
| ● Conversion time (per channel) |
100 µs |
| Settling time |
| ● for resistive load |
0.6 ms |
| ● for capacitive load |
3 ms |
| ● for inductive load |
0.5 ms |
| Encoder |
| Connectable encoders |
| ● 2-wire sensor |
Yes |
| — permissible quiescent current (2-wire sensor), max. |
2 mA |
| Errors/accuracies |
| Operational error limit in overall temperature range |
| ● Voltage, relative to input area, ( /-) |
1 % |
| ● Current, relative to input area, ( /-) |
1 % |
| ● Voltage, relative to output area, ( /-) |
1 % |
| ● Current, relative to output area, ( /-) |
1 % |
| Basic error limit (operational limit at 25 °C) |
| ● Voltage, relative to input area, ( /-) |
0.9 % |
| ● Current, relative to input area, ( /-) |
0.8 % |
| ● Voltage, relative to output area, ( /-) |
0.8 % |
| ● Current, relative to output area, ( /-) |
0.9 % |
| Interfaces |
| MPI |
| ● Cable length, max. |
9 100 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) |
| 1. Interface |
| Functionality |
| ● MPI |
Yes |
| MPI |
| ● Number of nodes, max. |
32; PG/PC, OP, C7, S7-300/400, M7 |
| ● Transmission rate, max. |
187.5 kbit/s |
| Communication functions |
| PG/OP communication |
Yes |
| Global data communication |
| ● supported |
Yes |
| S7 basic communication |
| ● supported |
Yes |
| S7 communication |
| ● S7 extended communication |
Yes; Server |
| Number of connections |
| ● overall |
|
| — of which dynamic |
4 |
| — of which static |
4 |
| Interrupts/diagnostics/status information |
| Alarms |
| ● Diagnostic alarm |
No |
| Diagnostic messages |
| ● Diagnostic functions |
Yes |
| Galvanic isolation |
| Galvanic isolation digital inputs |
| ● Galvanic isolation digital inputs |
No |
| Galvanic isolation digital outputs |
| ● Galvanic isolation digital outputs |
No |
| Galvanic isolation analog inputs |
| ● Galvanic isolation analog inputs |
No |
| Galvanic isolation analog outputs |
| ● Galvanic isolation analog outputs |
No |
| Isolation |
| Isolation tested with |
500 V DC |
| EMC |
| Emission of radio interference acc. to EN 55 022 |
| ● Interference emission acc. to EN 55022, class B |
Yes; Noise emission: Class A / EN 55022; conducted interference: IEC 1000-4-4, IEC 1000-4-5; noise immunity: IEC 1000-4-2, IEC 1000-4-3, IEC 1000-4-4, IEC 1000-4-6, EN 50140 |
| Degree and class of protection |
| IP20 |
Yes; Housing |
| IP65 |
Yes; Front |
| Standards, approvals, certificates |
| DIN/ISO 9001 |
Yes; Certification of production and development |
| CSA approval |
Yes |
| UL approval |
Yes; UL 508 |
| FM approval |
Yes; FM-Standards No. 3611, 3600, 3810 Class I, Division 2, Group A, B, C, D |
| developed in accordance with IEC 61131 |
Yes |
| Ambient conditions |
| Operating temperature |
| ● 45 degree installation, min. |
0 °C |
| ● 45 degree installation, max. |
45 °C; limited readability when vertically mounted |
| ● vertical installation, min. |
0 °C |
| ● vertical installation, max. |
50 °C |
| Air pressure |
| ● permissible range, min. |
795 hPa |
| ● permissible range, max. |
1 080 hPa |
| Relative humidity |
| ● Operation, min. |
5 % |
| ● Operation, max. |
95 %; RH class 2 in accordance with IEC 1131-2 |
| Vibrations |
| ● Operation, tested according to IEC 60068-2-6 |
Yes; IEC 68, Part 2-6; 10 to 58 Hz; (constant amplitude 0.075 mm); 58 to 500 Hz; (constant acceleration 9.8 m/s2) |
| Shock test |
| ● tested according to IEC 60068-2-29 |
Yes; IEC 68, Part 2-29 half-sine: 100 m/s2 (10 g), 16 ms, 100 shocks |
| Configuration |
| Configuration software |
| ● STEP 7 Lite |
Yes |
| ● ProTool |
Yes |
| ● ProTool/Lite |
Yes |
| ● ProTool/Pro |
Yes |
| Programming |
| ● Command set |
see instruction list |
| ● Nesting levels |
8 |
| ● Program organization |
Linear, structured |
| ● System functions (SFC) |
see instruction list |
| Programming language |
| — SCL |
Yes |
| Software libraries |
| — Process diagnostics |
Yes; S7-CPU |
| — Software controller |
Yes; 8 loops |
| Know-how protection |
| ● User program protection/password protection |
Yes |
| Cycle time monitoring |
| ● lower limit |
1 ms |
| ● upper limit |
6 000 ms |
| ● adjustable |
Yes |
| ● preset |
150 ms |
| Languages |
| Online languages |
| ● Number of online/runtime languages |
3 |
| Dimensions |
| Width |
168 mm |
| Height |
120 mm |
| Depth |
69 mm |
| Mounting cutout/device depth (W x H x D) |
|
| ● Mounting cutout, width |
158.5 mm |
| ● Mounting cutout, height |
110.5 mm |
| Weights |
| Weight, approx. |
800 g |
| last modified: |
31.07.2014 |
