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SIMATIC S7-400, CPU 412-2 CENTRAL PROCESSING UNIT WITH: 256 KB WORKING MEMORY, (128 KB CODE, 128 KB DATA), 1. INTERFACE MPI/DP 12 MBIT/S, 2. INTERFACE PROFIBUS DP |
| General information |
| Firmware version |
V4.0 |
| Engineering with |
| ● Programming package |
STEP7 V5.2 SP1 HF3 or higher with HW update |
| CiR - Configuration in RUN |
| CiR synchronization time, basic load |
100 ms |
| CiR synchronization time, time per I/O slave |
200 µs |
| Supply voltage |
| 24 V DC |
Yes |
| Input current |
| from backplane bus 5 V DC, typ. |
1 A |
| from backplane bus 5 V DC, max. |
1.2 A |
| from backplane bus 24 V DC, max. |
Total current consumption of the components connected to the MPI/DP interfaces, but no more than 150 mA per interface |
| Power loss |
| Power loss, typ. |
4.5 W |
| Memory |
| Work memory |
| ● integrated (for program) |
128 kbyte |
| ● integrated (for data) |
128 kbyte |
| ● expandable |
No |
| Load memory |
| ● expandable FEPROM |
Yes; with Memory Card (FLASH) |
| ● expandable FEPROM, max. |
64 Mbyte |
| ● integrated RAM, max. |
256 kbyte |
| ● expandable RAM |
Yes; with Memory Card (RAM) |
| ● expandable RAM, max. |
16 Mbyte |
| Backup |
| ● present |
Yes |
| ● with battery |
Yes; all data |
| ● without battery |
No |
| Battery |
| Backup battery |
| ● Backup current, typ. |
350 µA |
| ● Backup current, max. |
890 µA |
| ● Backup time, max. |
226 d |
| ● Feeding of external backup voltage to CPU |
5 to 15 VDC |
| CPU processing times |
| for bit operations, typ. |
0.1 µs |
| for word operations, typ. |
0.1 µs |
| for fixed point arithmetic, typ. |
0.1 µs |
| for floating point arithmetic, typ. |
0.3 µs |
| CPU-blocks |
| DB |
| ● Number, max. |
512; DB 0 reserved |
| ● Size, max. |
64 kbyte |
| FB |
| ● Number, max. |
256 |
| ● Size, max. |
64 kbyte |
| FC |
| ● Number, max. |
256 |
| ● Size, max. |
64 kbyte |
| OB |
| ● Number, max. |
see instruction list |
| ● Size, max. |
64 kbyte |
| ● Number of time alarm OBs |
2 |
| ● Number of delay alarm OBs |
2 |
| ● Number of time interrupt OBs |
2 |
| ● Number of process alarm OBs |
2 |
| ● Number of multicomputing OBs |
1 |
| Nesting depth |
| ● per priority class |
24 |
| ● additional within an error OB |
1 |
| Counters, timers and their retentivity |
| S7 counter |
| ● Number |
2 048 |
| Retentivity |
| — adjustable |
Yes |
| — lower limit |
0 |
| — upper limit |
2 047 |
| — preset |
Z 0 to Z 7 |
| Counting range |
| — lower limit |
0 |
| — upper limit |
999 |
| IEC counter |
| ● present |
Yes |
| ● Type |
SFB |
| S7 times |
| ● Number |
2 048 |
| Retentivity |
| — adjustable |
Yes |
| — lower limit |
0 |
| — upper limit |
2 047 |
| — preset |
No times retentive |
| Time range |
| — lower limit |
10 ms |
| — upper limit |
9 990 s |
| IEC timer |
| ● present |
Yes |
| ● Type |
SFB |
| Data areas and their retentivity |
| retentive data area, total |
Total working and load memory (with backup battery) |
| Flag |
| ● Number, max. |
4 kbyte |
| ● Retentivity available |
Yes; From MB 0 to MB 4095 |
| ● Retentivity preset |
MB 0 to MB 15 |
| ● Number of clock memories |
8; 1 memory byte |
| Data blocks |
| ● Number, max. |
512; DB 0 reserved |
| ● Size, max. |
64 kbyte |
| Local data |
| ● adjustable, max. |
8 kbyte |
| ● preset |
4 kbyte |
| Address area |
| I/O address area |
| ● Inputs |
4 kbyte |
| ● Outputs |
4 kbyte |
| of which distributed |
| — MPI/DP interface, inputs |
2 kbyte |
| — MPI/DP interface, outputs |
2 kbyte |
| — DP interface, inputs |
4 kbyte; for each line that is operated in isochronous mode, i.e. to which an OB61 to 62 has been assigned, the distributed IO address areas are halved |
| — DP interface, outputs |
4 kbyte; for each line that is operated in isochronous mode, i.e. to which an OB61 to 62 has been assigned, the distributed IO address areas are halved |
| Process image |
| ● Inputs, adjustable |
4 kbyte |
| ● Outputs, adjustable |
4 kbyte |
| ● Inputs, default |
128 byte |
| ● Outputs, default |
128 byte |
| ● consistent data, max. |
244 byte |
| ● Access to consistent data in process image |
Yes |
| Subprocess images |
| ● Number of subprocess images, max. |
15 |
| Digital channels |
| ● Inputs |
32 768 |
| ● Outputs |
32 768 |
| ● Inputs, of which central |
32 768 |
| ● Outputs, of which central |
32 768 |
| Analog channels |
| ● Inputs |
2 048 |
| ● Outputs |
2 048 |
| ● Inputs, of which central |
2 048 |
| ● Outputs, of which central |
2 048 |
| Hardware configuration |
| Expansion devices, max. |
21; of which 6 ER with K-bus |
| connectable OPs |
15 without message processing, 8 with message processing |
| Multicomputing |
Yes; 4 CPUs max. (with UR1 or UR2) |
| Interface modules |
| ● Number of connectable IMs (total), max. |
6 |
| ● Number of connectable IM 460s, max. |
6 |
| ● Number of connectable IM 463s, max. |
4; IM 463-2 |
| Number of DP masters |
| ● integrated |
2 |
| ● via IM 467 |
4 |
| ● via CP |
10; CP 443-5 Extended |
| ● Mixed mode IM CP permitted |
No; IM 467 cannot be used jointly with CP 443-5 Ext. |
| ● via interface module |
0 |
| ● Number of pluggable S5 modules (via adapter capsule in central device), max. |
6 |
| Number of operable FMs and CPs (recommended) |
| ● FM |
Limited by number of slots and number of connections |
| ● CP, point-to-point |
CP 440: Limited by number of slots; CP 441: limited by number of connections |
| ● CP, LAN |
Limited by number of slots and number of connections |
| ● PROFIBUS and Ethernet CPs |
14; incl. CP 443-5 Ext. and IM 467 |
| Slots |
| ● required slots |
1 |
| Time of day |
| Clock |
| ● Hardware clock (real-time clock) |
Yes |
| ● battery-backed and synchronizable |
Yes |
| ● Resolution |
1 ms |
| ● Deviation per day (buffered), max. |
1.7 s; Power off |
| ● Deviation per day (unbuffered) max. |
8.6 s; Power on |
| Operating hours counter |
| ● Number |
8 |
| ● Number/Number range |
0 to 7 |
| ● Range of values |
0 to 32767 hours |
| ● Granularity |
1 hour |
| ● retentive |
Yes |
| Clock synchronization |
| ● supported |
Yes |
| ● to MPI, master |
Yes |
| ● to MPI, slave |
Yes |
| ● to DP, master |
Yes |
| ● to DP, slave |
Yes |
| ● in AS, master |
Yes |
| ● in AS, slave |
Yes |
| 1. Interface |
| Interface type |
Integrated |
| Physics |
RS 485 / PROFIBUS |
| isolated |
Yes |
| Power supply to interface (15 to 30 V DC), max. |
150 mA |
| Number of connection resources |
MPI: 16, DP: 16 |
| Functionality |
| ● MPI |
Yes |
| ● DP master |
Yes |
| ● DP slave |
Yes |
| MPI |
| ● Number of connections |
16 |
| ● Transmission rate, max. |
12 Mbit/s |
| Services |
| — PG/OP communication |
Yes |
| — Routing |
Yes |
| — Global data communication |
Yes |
| — S7 basic communication |
Yes |
| — S7 communication |
Yes |
| DP master |
| ● Number of connections, max. |
16 |
| ● Transmission rate, max. |
12 Mbit/s |
| ● Number of DP slaves, max. |
32 |
| Services |
| — PG/OP communication |
Yes |
| — Routing |
Yes |
| — S7 basic communication |
Yes |
| — S7 communication |
Yes |
| — Equidistance mode support |
Yes |
| — SYNC/FREEZE |
Yes |
| — Activation/deactivation of DP slaves |
Yes |
| — Direct data exchange (slave-to-slave communication) |
Yes |
| Address area |
| — Inputs, max. |
2 kbyte |
| — Outputs, max. |
2 kbyte |
| User data per DP slave |
| — Inputs, max. |
244 byte |
| — Outputs, max. |
244 byte |
| — Slots, max. |
244 |
| — per slot, max. |
128 byte |
| DP slave |
| ● Number of connections |
1 |
| ● GSD file |
http://www.ad.siemens.de/csi_e/gsd |
| ● Transmission rate, max. |
12 Mbit/s |
| ● Address area, max. |
32 |
| ● User data per address area, max. |
32 byte |
| ● User data per address area, of which consistent, max. |
32 byte |
| Services |
| — PG/OP communication |
Yes |
| — Routing |
Yes |
| Transfer memory |
| — Inputs |
244 byte |
| — Outputs |
244 byte |
| 2. Interface |
| Interface type |
Integrated |
| Physics |
RS 485 / PROFIBUS |
| isolated |
Yes |
| Power supply to interface (15 to 30 V DC), max. |
150 mA |
| Number of connection resources |
16 |
| Functionality |
| ● DP master |
Yes |
| ● DP slave |
Yes |
| DP master |
| ● Number of connections, max. |
16 |
| ● Transmission rate, max. |
12 Mbit/s |
| ● Number of DP slaves, max. |
64 |
| Services |
| — PG/OP communication |
Yes |
| — Routing |
Yes |
| — Global data communication |
Yes |
| — S7 basic communication |
Yes |
| — S7 communication |
Yes |
| — Equidistance mode support |
Yes |
| — SYNC/FREEZE |
Yes |
| — Activation/deactivation of DP slaves |
Yes |
| — Direct data exchange (slave-to-slave communication) |
Yes |
| Address area |
| — Inputs, max. |
4 kbyte |
| — Outputs, max. |
4 kbyte |
| User data per DP slave |
| — Inputs, max. |
244 byte |
| — Outputs, max. |
244 byte |
| — Slots, max. |
244 |
| — per slot, max. |
128 byte |
| DP slave |
| ● GSD file |
http://www.ad.siemens.de/csi_e/gsd |
| ● Transmission rate, max. |
12 Mbit/s |
| ● Address area, max. |
32 |
| ● User data per address area, max. |
32 byte |
| ● User data per address area, of which consistent, max. |
32 byte |
| Services |
| — Routing |
Yes |
| Transfer memory |
| — Inputs |
244 byte |
| — Outputs |
244 byte |
| Isochronous mode |
| Isochronous mode (application synchronized up to terminal) |
Yes |
| User data per isochronous slave, max. |
244 byte |
| Equidistance |
Yes |
| shortest clock pulse |
1 ms |
| max. cycle |
32 ms |
| Communication functions |
| PG/OP communication |
Yes |
| ● Number of connectable OPs without message processing |
15 |
| ● Number of connectable OPs with message processing |
8 |
| Global data communication |
| ● supported |
Yes |
| ● Number of GD loops, max. |
8 |
| ● Number of GD packets, transmitter, max. |
8 |
| ● Number of GD packets, receiver, max. |
16 |
| ● Size of GD packets, max. |
64 byte |
| ● Size of GD packet (of which consistent), max. |
1 variable |
| S7 basic communication |
| ● supported |
Yes; in MPI mode via: SFC X_SEND, X_RCV, X_GET and X_PUT; in DP master mode via: SFC I_GET and I_PUT |
| ● User data per job, max. |
76 byte |
| ● User data per job (of which consistent), max. |
1 variable |
| S7 communication |
| ● supported |
Yes |
| ● as server |
Yes |
| ● as client |
Yes |
| ● User data per job, max. |
64 kbyte |
| ● User data per job (of which consistent), max. |
462 byte; 1 variable |
| S5 compatible communication |
| ● supported |
Yes; Via FC AG_SEND and AG_RECV, max. via 10 CP 443-1 or 443-5 |
| ● User data per job, max. |
8 kbyte |
| ● User data per job (of which consistent), max. |
240 byte |
| Standard communication (FMS) |
| ● supported |
Yes; Via CP and loadable FB |
| Number of connections |
| ● overall |
16 |
| ● usable for PG communication |
|
| — reserved for PG communication |
1 |
| ● usable for OP communication |
|
| — reserved for OP communication |
1 |
| S7 message functions |
| Number of login stations for message functions, max. |
8 |
| Symbol-related messages |
Yes |
| Block related messages |
Yes |
| simultaneously active Alarm-S blocks, max. |
70; ALARM_S/SQ blocks or ALARM_D/DQ blocks |
| Alarm 8-blocks |
Yes |
| ● Number of instances for alarm 8 and S7 communication blocks, max. |
300 |
| ● preset, max. |
150 |
| Process control messages |
Yes |
| Number of archives that can log on simultaneously (SFB 37 AR_SEND) |
4 |
| Number of messages |
| ● overall, max. |
512 |
| ● in 100 ms grid, max. |
0 |
| ● in 500 ms grid, max. |
256 |
| ● in 1000 ms grid, max. |
256 |
| Number of additional values |
| ● per message |
1 |
| ● with 100 ms grid, max. |
0 |
| ● with 500, 1000 ms grid, max. |
1 |
| Test commissioning functions |
| Status block |
Yes |
| Single step |
Yes |
| Number of breakpoints |
4 |
| Status/control |
| ● Status/control variable |
Yes |
| ● Variables |
Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters |
| ● Number of variables, max. |
70 |
| Forcing |
| ● Forcing |
Yes |
| ● Forcing, variables |
Inputs/outputs, bit memories, distributed I/Os |
| ● Number of variables, max. |
64 |
| Diagnostic buffer |
| ● present |
Yes |
| ● Number of entries, max. |
400 |
| — adjustable |
Yes |
| — preset |
120 |
| Configuration |
| Configuration software |
| ● STEP 7 |
Yes |
| Programming |
| ● Command set |
see instruction list |
| ● Nesting levels |
8 |
| ● Access to consistent data in process image |
Yes |
| ● System functions (SFC) |
see instruction list |
| ● System function blocks (SFB) |
see instruction list |
| Programming language |
| — LAD |
Yes |
| — FBD |
Yes |
| — STL |
Yes |
| — SCL |
Yes |
| — CFC |
Yes |
| — GRAPH |
Yes |
| — HiGraph® |
Yes |
| Number of simultaneously active SFCs |
| — DPSYC_FR |
2 |
| — D_ACT_DP |
4 |
| — RD_REC |
8 |
| — WR_REC |
8 |
| — WR_PARM |
8 |
| — PARM_MOD |
1 |
| — WR_DPARM |
2 |
| — DPNRM_DG |
8 |
| — RDSYSST |
8; 1 to 8 |
| — DP_TOPOL |
1 |
| Number of simultaneously active SFBs |
| — RD_REC |
8 |
| — WR_REC |
8 |
| Know-how protection |
| ● User program protection/password protection |
Yes |
| Dimensions |
| Width |
25 mm |
| Height |
290 mm |
| Depth |
219 mm |
| Weights |
| Weight, approx. |
720 g |
| last modified: |
31.07.2014 |
