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6ES7 151-7AB00-0AB0 |
6ES7 151-7AA20-0AB0 |
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Product version |
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associated programming package |
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STEP 7 V5.2 + SP1 or higher with HW update |
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Supply voltages |
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Rated value |
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20.4 V |
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Load voltage L+ |
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24 V |
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20.4 V |
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28.8 V |
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Yes |
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Yes |
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Current consumption |
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Inrush current, max. |
3.5 A |
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Current output to backplane bus (DC 5 V), max. |
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700 mA |
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from supply voltage 1L+, max. |
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250 mA; 280 mA with DP master module |
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Power losses |
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Power loss, typ. |
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3.3 W |
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Memory |
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Work memory |
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48 Kibyte; as of FW V1.13 48 KB; previously 24 KB |
96 Kibyte; For program and data |
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No |
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Load memory |
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Yes |
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8 Mbyte |
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CPU/ blocks |
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Number of blocks (total) |
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1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used. |
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DB |
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127 |
511; Number range: 1 to 511 |
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16 Kibyte |
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FB |
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128 |
1 024; Number range: 0 to 2047 |
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16 Kibyte |
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FC |
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128 |
1 024; Number range: 0 to 2047 |
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16 Kibyte |
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OB |
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16 Kibyte |
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Nesting depth |
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8 |
8 |
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4 |
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CPU processing times |
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for bit operations, min. |
0.1 µs |
0.1 µs |
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for word operations, min. |
1 µs |
0.2 µs |
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for fixed point arithmetic, min. |
2 µs |
2 µs |
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for floating point arithmetic, min. |
20 µs |
3 µs |
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Counters, timers and their retentivity |
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S7 counter |
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256 |
256 |
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Yes |
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0 |
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255 |
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Z 0 to Z 7 |
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Yes |
Yes |
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1 |
0 |
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999 |
999 |
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IEC counter |
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SFB |
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Unlimited (limited only by RAM capacity) |
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S7 times |
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256 |
256 |
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Yes |
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0 |
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255 |
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No retentivity |
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10 ms |
10 ms |
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9 990 s |
9 990 s |
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IEC timer |
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SFB |
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Unlimited (limited only by RAM capacity) |
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Data areas and their retentivity |
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retentive data area in total (incl. times, counters, flags), max. |
4 Kibyte |
64 Kibyte |
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Flag |
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256 byte |
256 byte |
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Yes |
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MB 0 to MB 15 |
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8; 1 memory byte |
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Data blocks |
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511; Number range: 1 to 511 |
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16 Kibyte |
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Local data |
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510 byte |
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Address area |
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I/O address area |
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2 048 byte |
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2 048 byte |
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Process image |
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128 byte; Not adjustable |
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128 byte; Not adjustable |
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Digital channels |
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16 336 |
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16 336 |
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248 |
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248 |
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Analog channels |
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1 021 |
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1 021 |
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124 |
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124 |
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Addressing volume |
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244 byte |
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244 byte |
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Hardware configuration |
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Number of modules per system, max. |
63 |
63; Centralized |
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Connectable programming devices/PCs |
PGs/OPs with STEP 7 connectable via PROFIBUS interface |
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Time of day |
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Clock |
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Yes |
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Yes |
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6 wk; At 40 °C ambient temperature, typically |
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10 s |
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Runtime meter |
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1 |
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0 |
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0 to 2^31 hours (when using SFC 101) |
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1 hour |
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Yes; Must be restarted at each restart |
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Clock synchronization |
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Yes |
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Yes |
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Yes |
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Yes |
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Yes |
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No |
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No |
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S7 message functions |
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Number of login stations for message functions, max. |
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12; Depending on the configured connections for PG/OP and S7 basic communication |
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Process diagnostic messages |
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Yes; ALARM_S, ALARM_SC, ALARM_SQ, ALARM_D, ALARM_DQ |
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simultaneously active Alarm-S blocks, max. |
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40 |
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Test commissioning functions |
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Status/control |
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Yes |
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Inputs, outputs, memory bits, DB, times, counters |
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30 |
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30 |
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14 |
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Forcing |
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Yes |
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Status block |
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Yes |
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Single step |
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Yes |
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Number of breakpoints |
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2 |
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Diagnostic buffer |
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Yes |
Yes |
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100 |
100 |
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No |
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Communication functions |
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PG/OP communication |
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Yes |
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Global data communication |
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Yes |
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4 |
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4 |
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4 |
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22 byte |
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22 byte |
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S7 basic communication |
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Yes |
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76 byte |
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76 byte; 76 bytes (with X_SEND or X_RCV); 64 bytes (with X_PUT or X_GET as server) |
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S7 communication |
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Yes |
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Yes |
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No |
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180 byte |
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64 byte |
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S5-compatible communication |
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No |
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Standard communication (FMS) |
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No |
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Number of connections |
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12 |
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11 |
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1 |
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11 |
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1 |
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10 |
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0 |
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4; As slave only with active interface, with IM 151-7 CPU as DP master |
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1st interface |
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Type of interface |
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Integrated RS 485 interface |
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Physics |
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RS 485 |
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Isolated |
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Yes |
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Power supply to interface (15 to 30 V DC), max. |
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80 mA |
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Functionality |
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Yes |
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No |
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Yes |
Yes; active / passive |
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No |
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MPI |
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12; Notice: 12 connections per CPU, not per interface |
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Yes |
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Yes; With master module |
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Yes |
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Yes |
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Yes |
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No |
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Yes |
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12 Mbit/s |
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DP slave |
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11 |
12; Notice: 12 connections per CPU, not per interface |
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Yes; Only when interface active and in master mode |
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Yes |
Yes |
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No |
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http://www.siemens.de/profibus-gsd |
http://www.siemens.de/profibus-gsd |
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12 Mbit/s |
12 Mbit/s |
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Yes; only with passive interface |
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244 byte |
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244 byte |
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32 |
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32 byte; Up to max. size of the transfer memory |
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2nd interface |
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Type of interface |
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External interface via master module 6ES7138-4HA00-0AB0 |
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Physics |
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RS 485 |
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Isolated |
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Yes |
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Power supply to interface (15 to 30 V DC), max. |
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No |
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Functionality |
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No |
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Yes |
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No |
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DP master |
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12; Notice: 12 connections per CPU, not per interface |
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Yes |
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Yes |
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No |
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Yes; I blocks only |
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Yes |
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No |
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Yes |
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Yes |
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Yes |
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Yes |
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Yes |
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Yes |
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12 Mbit/s |
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32; Per station |
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2 Kibyte |
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2 Kibyte |
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244 byte |
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244 byte |
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Isochronous mode |
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Isochronous mode |
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No |
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CPU/ programming |
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Configuration rules |
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max. 63 peripheral modules per station; station width < 1 m or < 2 m; max. 10 A per load group (power module); master interface module on right next to IM 151-7 CPU (X2 interface) |
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Programming language |
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Yes |
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Yes |
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Yes |
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Yes |
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Yes |
Yes; Optional |
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Yes; Optional |
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Command set |
Binary logic operations, bracketed operations, result allocation, saving, counting, loading, transferring, comparing, shifting, rotating, complementation, calling blocks, fixed point arithmetic, floating point arithmetic, jump functions |
See instruction list |
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Nesting levels |
8 |
8 |
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Know-how protection |
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Yes |
Yes |
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System functions (SFC) |
Interrupt and error processing, copy data, clock functions, diagnostic functions, module parameterization, operating mode transitions |
See instruction list |
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System function blocks (SFB) |
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See instruction list |
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Isolation |
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Isolation checked with |
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500 VDC |
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Galvanic isolation |
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between load voltage and all other switching components |
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Yes |
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between PROFIBUS DP and all other circuit components |
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Yes |
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Permissible potential difference |
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between different circuits |
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75 VDC / 60 VAC |
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Environmental requirements |
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Operating temperature |
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0 °C |
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Dimensions and weight |
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Dimensions |
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60 mm |
60 mm; DP master module: 35 mm |
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119.5 mm |
119.5 mm |
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75 mm |
75 mm |
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Weight |
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200 g |
200 g; DP master module: Approx. 100 g |