Siemens S7-400H fault-tolerant CPU, 6AG1414-4HM14-4AB0, type SFB, supports multiple programming languages, 4096 I/O, 0-60°C, CE.
| Parameter | Value |
|---|---|
| Type | SFB |
| Interface | Pluggable synchronization submodule (FO) |
| Type of memory | RAM |
| Feeding of external backup voltage to CPU | 5 V DC to 15 V DC |
| Backup current, max. | 660 µA |
| Backup current, typ. | 190 µA; Valid up to 40°C |
| Output current of the interface, max. | 150 mA |
| Power loss, typ. | 6 W |
| S7 communication | Yes |
| Optical interface | No |
| PG (OP communication) | Yes |
| S7 basic communication | No |
| Parameter | Value |
|---|---|
| Global data communication | No |
| Plug-in interface modules | Synchronization submodule IF 960 6ES7960-1AA04-0XA0 or 6ES7960-1AB04-0XA0 |
| Number of other interfaces | 0 |
| Number of RS 485 interfaces | 2 |
| From interface 5 v DC, max. | 90 mA; At each DP interface |
| Reserved for OP communication | 1 |
| Reserved for PG communication | 1 |
| Reserved for s7 communication | 0 |
| Reserved for s7 basic communication | 0 |
| Adjustable for OP communication, max. | 0 |
| Adjustable for PG communication, max. | 0 |
| Adjustable for s7 communication, max. | 0 |
| Adjustable for s7 basic communication, max. | 0 |
| Direct data exchange (slave-to-slave communication) | No |
| Number of instances for alarm 8 and s7 communication blocks, max. | 1 200 |
| Number of connections | 32 |
| Number of connections, max. | 16 |
| Number of connection resources | 16 |
| Ambient air temperature-barometric pressure-altitude | Tmin ... Tmax at 1 080 hPa ... 795 hPa (-1 000 m ... +2 000 m) // Tmin ... (Tmax - 10 K) at 795 hPa ... 658 hPa (+2 000 m ... +3 500 m) // Tmin ... (Tmax - 20 K) at 658 hPa ... 540 hPa (+3 500 m ... +5 000 m) |
| Depth | 219 mm |
| Width | 50 mm |
| Height | 290 mm |
| Weight, approx. | 995 g |
| CE mark | Yes |
| FM | See manual Automation System S7-400H fault-tolerant systems. Limited by number of slots and number of connections |
| CFC | Yes |
| FBD | Yes |
| LAD | Yes |
| MPI | Yes |
| SCL | Yes |
| STL | Yes |
| Max. | 60 °C; = Tmax |
| Min. | 0 °C; = Tmin |
| GRAPH | Yes |
| RDREC | 8 |
| WRREC | 8 |
| Inputs | 4 096 |
| Number | 8 |
| Preset | 120 |
| RD_REC | 8 |
| RS 485 | Yes |
| STEP 7 | Yes |
| WR_REC | 8 |
| Via CP | 10 |
| CP, PtP | See manual Automation System S7-400H fault-tolerant systems. Limited by number of slots and number of connections |
| Forcing | Yes |
| Outputs | 4 096 |
| Overall | 32 |
| Present | Yes |
| RDSYSST | 8 |
| Routing | Yes |
| WR_PARM | 8 |
| DPNRM_DG | 8 |
| DP_TOPOL | 1 |
| Isolated | Yes |
| PARM_MOD | 1 |
| WR_DPARM | 2 |
| As client | Yes |
| As server | Yes |
| HiGraph® | Yes |
| MPI, max. | 200 ms |
| Retentive | Yes |
| Supported | Yes; Via CP and loadable FB |
| Variables | Inputs/outputs, memory bits, DBs, distributed I/Os, timers, counters |
| Adjustable | Yes |
| Expandable | No |
| Integrated | 2 |
| Resolution | 1 ms |
| Size, max. | 8 kbyte |
| Command set | see instruction list |
| Granularity | 1 h |
| Lower limit | 10 ms |
| SYNC (FREEZE) | No |
| Single step | Yes |
| Slots, max. | 244 |
| Upper limit | 9 990 s |
| Equidistance | No |
| Inputs, max. | 244 byte |
| Number, max. | 2 048; Number range: 0 to 2047 |
| Preset, max. | 900 |
| Status block | Yes |
| With battery | Yes; all data |
| In AS, slave | Yes |
| To DP, slave | Yes |
| Outputs, max. | 244 byte |
| In AS, master | Yes |
| To DP, master | Yes |
| To MPI, slave | Yes |
| Alarm 8-blocks | Yes |
| Multicomputing | No |
| Nesting levels | 8 |
| Per slot, max. | 128 byte |
| Program alarms | Yes |
| Required slots | 2 |
| Expandable RAM | Yes |
| To MPI, master | Yes |
| Inputs, default | 256 byte |
| Range of values | 0 to 32767 hours |
| Without battery | No |
| Connectable OPs | 31 without message processing, 8 with message processing |
| Adjustable, max. | 16 kbyte |
| Firmware version | V4.5 |
| Of which central | 4 096 |
| Outputs, default | 256 byte |
| Rated value | Power supply via system power supply |
| Backup time, max. | Dealt with in the module data manual with the secondary conditions and the factors of influence |
| PROFIBUS DP slave | No |
| Expandable FEPROM | Yes |
| Forcing, variables | Inputs/outputs, bit memories, distributed I/Os |
| Inputs, adjustable | 8 kbyte |
| PROFIBUS DP master | Yes |
| Per priority class | 24 |
| Retentivity preset | MB 0 to MB 15 |
| Number (Number range) | 0 to 7 |
| Outputs, adjustable | 8 kbyte |
| Programming package | STEP 7 V5.3 SP2 or higher with HW update |
| HW functional status | 1 |
| Reserved for routing | 0 |
| Expandable RAM, max. | 64 Mbyte |
| Integrated RAM, max. | 256 kbyte |
| Consistent data, max. | 244 byte |
| Integrated (For data) | 1.4 Mbyte |
| Number of breakpoints | 4 |
| Retentivity available | Yes |
| System functions | see instruction list |
| Number of entries, max. | 3 200 |
| Status (control variable) | Yes |
| Symbol-related messages | No |
| Transmission rate, max. | 12 Mbit/s |
| User data per job, max. | 8 kbyte |
| Expandable FEPROM, max. | 64 Mbyte |
| For bit operations, typ. | 0.045 µs |
| Integrated (For program) | 1.4 Mbyte |
| Number of clock memories | 8; in 1 memory byte |
| Number of time alarm OBs | 4 |
| Process control messages | Yes |
| For word operations, typ. | 0.045 µs |
| Number of DP slaves, max. | 96 |
| Number of delay alarm OBs | 4 |
| Number of variables, max. | 256 |
| PROFIBUS and ethernet CPs | 14; Of which max. 10 CP as DP master |
| Hardware clock (real-time) | Yes |
| Number of process alarm OBs | 4 |
| Adjustable for routing, max. | 0 |
| Mixed mode IM + CP permitted | No |
| Retentive and synchronizable | Yes |
| System function blocks | see instruction list |
| User data per DP slave, max. | 244 byte |
| Additional within an error OB | 1 |
| Number of cyclic interrupt OBs | 4 |
| Number of expansion units, max. | 21 |
| From backplane bus 5 v DC, max. | 1.7 A |
| From backplane bus 5 v DC, typ. | 1.4 A |
| For fixed point arithmetic, typ. | 0.045 µs |
| From backplane bus 24 v DC, max. | 150 mA; Per DP interface |
| Number of subprocess images, max. | 15 |
| Deviation per day (buffered), max. | 1.7 ms; Power off |
| For floating point arithmetic, typ. | 0.135 µs |
| Number of connectable IM 460s, max. | 6 |
| Number of connectable IM 463s, max. | 4; Single mode only |
| Activation (deactivation of DP slaves) | No |
| CiR synchronization time, basic load | 100 ms |
| Deviation per day (unbuffered), max. | 8.6 ms; Power on |
| Number of connectable IMs (total), max. | 6 |
| Simultaneously active Alarm-S blocks, max. | 100 |
| CiR synchronization time, time per i (O byte) | 25 µs |
| User program protection (password protection) | Yes |
| User data per job (of which consistent), max. | 240 byte |
| Number of connectable OPs with message processing | 8 |
| Number of connectable OPs without message processing | 31 |
| Number of login stations for message functions, max. | 8 |
| Retentive data area (incl. timers, counters, flags), max. | Total working and load memory (with backup battery) |
| Number of simultaneous AG-SEND (AG-RECV orders per CPU, max.) | 24/24 |
| Number of archives that can log on simultaneously (SFB 37 AR_SEND) | 16 |
Siemens 6AG1414-4HM14-4AB0 is an S7-400H CPU module for fault-tolerant automation, type SFB. Supports CFC, FBD, LAD, SCL, STL, and GRAPH programming. Communication via MPI, with routing enabled. Operating temperature range 0-60°C. CE marked.
The FM value is referenced to the S7-400H manual; it is limited by the number of slots and connections.
Yes, CFC is listed as supported.
The module is CE marked.
Alternative models and sibling configurations in the same Siemens series. For obsolete or discontinued parts, these models can serve as compatible replacements or functional alternatives for plant maintenance.
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