Technical data
|
SIMATIC S7-300, CPU 312C COMPACT CPU WITH MPI, 10 DI/6 DO, 2 FAST COUNTERS (10 KHZ), INTEGRATED 24V DC POWER SUPPLY, 16 KBYTE WORKING MEMORY, MICRO MEMORY CARD REQUIRED |
Supply voltage |
|
Rated value (DC) |
24 V |
permissible range, lower limit (DC) |
20.4 V |
permissible range, upper limit (DC) |
28.8 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 (rated value) |
500 mA |
Inrush current, typ. |
11 A |
Power loss |
|
Power loss, typ. |
6 W; incl. integrated inputs/outputs |
Memory |
|
Work memory |
|
● integrated |
16 kbyte; For program and data |
● expandable |
No |
Load memory |
|
● expandable FEPROM |
Yes; with Micro Memory Card (MMC) |
● expandable FEPROM, max. |
4 Mbyte |
Backup |
|
● present |
Yes; Guaranteed by MMC (maintenance-free) |
● without battery |
Yes; Program and data |
CPU processing times |
|
for bit operations, typ. |
0.2 µs |
for bit operations, max. |
0.4 µs |
for word operations, typ. |
1 µs |
for fixed point arithmetic, typ. |
2 µs |
for floating point arithmetic, typ. |
30 µs |
CPU-blocks |
|
DB |
|
● Number, max. |
63; DB 0 reserved |
FB |
|
● Number, max. |
64 |
FC |
|
● Number, max. |
64 |
OB |
|
● Size, max. |
16 kbyte |
● Number of time alarm OBs |
1 |
● Number of delay alarm OBs |
1 |
● Number of cyclic interrupt OBs |
1 |
● Number of process alarm OBs |
1 |
Nesting depth |
|
● per priority class |
8 |
● additional within an error OB |
4 |
Counters, timers and their retentivity |
|
S7 counter |
|
● Number |
128 |
Retentivity |
|
— adjustable |
Yes |
— lower limit |
0 |
— upper limit |
128 |
Counting range |
|
— lower limit |
1 |
— upper limit |
999 |
IEC counter |
|
● present |
Yes |
● Type |
SFB |
S7 times |
|
● Number |
128 |
Retentivity |
|
— adjustable |
Yes |
— lower limit |
0 |
— upper limit |
128 |
Time range |
|
— lower limit |
10 ms |
— upper limit |
9 990 s |
IEC timer |
|
● present |
Yes |
● Type |
SFB |
Data areas and their retentivity |
|
Flag |
|
● Number, max. |
128 byte |
● Retentivity preset |
MB 0 to MB 15 |
Address area |
|
I/O address area |
|
● Inputs |
1 kbyte |
● Outputs |
1 kbyte |
Process image |
|
● Inputs |
128 byte |
● Outputs |
128 byte |
Digital channels |
|
● Inputs |
256 |
● Outputs |
256 |
Analog channels |
|
● Inputs |
64 |
● Outputs |
32 |
Hardware configuration |
|
Number of expansion units, max. |
0 |
Number of DP masters |
|
● via CP |
1 |
Number of operable FMs and CPs (recommended) |
|
● FM |
4 |
● CP, PtP |
2 |
● CP, LAN |
1 |
Rack |
|
● Racks, max. |
1 |
● Modules per rack, max. |
8 |
Time of day |
|
Clock |
|
● Software clock |
Yes |
● retentive and synchronizable |
No |
Operating hours counter |
|
● Number |
1 |
Clock synchronization |
|
● supported |
Yes |
Digital inputs |
|
Number of digital inputs |
10 |
Input voltage |
|
● Rated value (DC) |
24 V |
● for signal "0" |
-3 to +5V |
● for signal "1" |
+15 to +30 V |
Input current |
|
● for signal "1", typ. |
8 mA |
Input delay (for rated value of input voltage) |
|
for standard inputs |
|
— parameterizable |
Yes |
— at "0" to "1", max. |
100 µs; 0.1 / 0.3 / 3 / 15 ms |
For technological functions |
|
— at "0" to "1", max. |
50 µs |
Cable length |
|
● shielded, max. |
1 000 m; 100 m for technological functions |
● unshielded, max. |
600 m |
Digital outputs |
|
Number of digital outputs |
6 |
Short-circuit protection |
Yes; Clocked electronically |
Limitation of inductive shutdown voltage to |
L+ (-48 V) |
Output voltage |
|
● for signal "1", min. |
L+ (-0.8 V) |
Output current |
|
● for signal "1" permissible range for 0 to 60 °C, max. |
500 mA |
● 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 40 °C, max. |
3 000 mA |
— up to 60 °C, max. |
1 500 mA |
Cable length |
|
● shielded, max. |
1 000 m |
● unshielded, max. |
600 m |
Encoder |
|
Connectable encoders |
|
● 2-wire sensor |
Yes |
— permissible quiescent current (2-wire sensor), max. |
1.5 mA |
Interfaces |
|
MPI |
|
● Cable length, max. |
50 m; without repeater |
1. Interface |
|
Protocols |
|
● MPI |
Yes |
● PROFIBUS DP master |
No |
● PROFIBUS DP slave |
No |
● Point-to-point connection |
No |
MPI |
|
● Number of connections |
6 |
● Transmission rate, max. |
187.5 kbit/s |
Services |
|
— PG/OP communication |
Yes |
— Global data communication |
Yes |
— S7 basic communication |
Yes |
— S7 communication |
Yes |
— S7 communication, as client |
No |
— S7 communication, as server |
Yes |
Communication functions |
|
PG/OP communication |
Yes |
Global data communication |
|
● supported |
Yes |
● Number of GD packets, transmitter, max. |
4 |
● Number of GD packets, receiver, max. |
4 |
● Size of GD packets, max. |
22 byte |
S7 basic communication |
|
● supported |
Yes |
● User data per job, max. |
76 byte |
S7 communication |
|
● supported |
Yes |
● as server |
Yes |
● as client |
No |
● User data per job, max. |
64 kbyte |
Number of connections |
|
● overall |
6 |
● usable for PG communication |
|
— reserved for PG communication |
1 |
— adjustable for PG communication, max. |
5 |
● usable for OP communication |
|
— reserved for OP communication |
1 |
— adjustable for OP communication, max. |
5 |
● usable for S7 basic communication |
|
— reserved for S7 basic communication |
2 |
— adjustable for S7 basic communication, max. |
2 |
S7 message functions |
|
Number of login stations for message functions, max. |
3 |
Integrated Functions |
|
Number of counters |
2 |
Counting frequency (counter) max. |
10 kHz |
Frequency measurement |
Yes |
Number of pulse outputs |
2 |
Limit frequency (pulse) |
2.5 kHz |
Potential separation |
|
Potential separation digital inputs |
|
● Potential separation digital inputs |
Yes |
● between the channels, in groups of |
10 |
● between the channels and backplane bus |
Yes |
Potential separation digital outputs |
|
● Potential separation digital outputs |
Yes |
● between the channels, in groups of |
6 |
● between the channels and backplane bus |
Yes |
Configuration |
|
Configuration software |
|
● STEP 7 |
Yes; V5.1 SP2 |
Programming |
|
● Nesting levels |
8 |
Programming language |
|
— LAD |
Yes |
— FBD |
Yes |
— STL |
Yes |
— SCL |
Yes |
— GRAPH |
Yes |
— HiGraph® |
Yes |
Know-how protection |
|
● User program protection/password protection |
Yes |
Dimensions |
|
Width |
80 mm |
Height |
125 mm |
Depth |
130 mm |
Weights |
|
Weight, approx. |
410 g |
last modified: |
04/07/2020 |
http://www.plcchinasupplier.com/