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- Manufacturer
- Siemens
- Manufacturer part number
- 6ES7314-6EH04-0AB0
- Product family
- SIMATIC S7-300 PLC Modules
- Category
- PLCs and I/O › CPU and processor modules
- Technical datasheet
- Data sheet
Specifications
| Attribute | Value |
|---|---|
| Type | PLC CPU |
| Manufacturer lifecycle | Discontinued |
| Product type designation | CPU 314C-2 PN/DP |
| HW functional status | 01 |
| Firmware version | V3.3 |
| Product function / Isochronous mode | Yes; For PROFINET only |
| Engineering with / Programming package | STEP 7 V5.5 or higher with HSP 191 |
| Supply voltage / Rated value (DC) | 24 V |
| Supply voltage / permissible range, lower limit (DC) | 19.2 V |
| Supply voltage / permissible range, upper limit (DC) | 28.8 V |
| external protection for power supply lines (recommendation) | Miniature circuit breaker, type C; min. 2 A; miniature circuit breaker type B, min. 4 A |
| Mains buffering / Mains/voltage failure stored energy time | 5 ms |
| Mains buffering / Repeat rate, min. | 1 s |
| Load voltage L+ / Digital inputs / Rated value (DC) | 24 V |
| Load voltage L+ / Digital inputs / Reverse polarity protection | Yes |
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| Load voltage L+ / Digital outputs / Rated value (DC) | 24 V |
|---|---|
| Load voltage L+ / Digital outputs / Reverse polarity protection | No |
| Input current / Current consumption (rated value) | 850 mA |
| Input current / Current consumption (in no-load operation), typ. | 190 mA |
| Input current / Inrush current, typ. | 5 A |
| Input current / I²t | 0.7 A²·s |
| Digital inputs / from load voltage L+ (without load), max. | 80 mA |
| Digital outputs / from load voltage L+, max. | 50 mA |
| Power loss, typ. | 14 W |
| Work memory / integrated | 192 kbyte |
| Work memory / expandable | No |
| Load memory / Plug-in (MMC) | Yes |
| Load memory / Plug-in (MMC), max. | 8 Mbyte |
| Load memory / Data management on MMC (after last programming), min. | 10 a |
| Backup / present | Yes; Guaranteed by MMC (maintenance-free) |
| Backup / without battery | Yes; Program and data |
| CPU processing times / for bit operations, typ. | 0.06 µs |
| CPU processing times / for word operations, typ. | 0.12 µs |
| CPU processing times / for fixed point arithmetic, typ. | 0.16 µs |
| CPU processing times / for floating point arithmetic, typ. | 0.59 µs |
| CPU-blocks / Number of elements (total) | 1 024; (DBs, FCs, FBs); the maximum number of loadable blocks can be reduced by the MMC used. |
| DB / Number, max. | 1 024; Number range: 1 to 16000 |
| DB / Size, max. | 64 kbyte |
| FB / Number, max. | 1 024; Number range: 0 to 7999 |
| FB / Size, max. | 64 kbyte |
| FC / Number, max. | 1 024; Number range: 0 to 7999 |
| FC / Size, max. | 64 kbyte |
| OB / Number, max. | see instruction list |
| OB / Size, max. | 64 kbyte |
| OB / Number of free cycle OBs | 1; OB 1 |
| OB / Number of time alarm OBs | 1; OB 10 |
| OB / Number of delay alarm OBs | 2; OB 20, 21 |
| OB / Number of cyclic interrupt OBs | 4; OB 32, 33, 34, 35 |
| OB / Number of process alarm OBs | 1; OB 40 |
| OB / Number of DPV1 alarm OBs | 3; OB 55, 56, 57 |
| OB / Number of isochronous mode OBs | 1; OB 61; only for PROFINET |
| OB / Number of startup OBs | 1; OB 100 |
| OB / Number of asynchronous error OBs | 6; OB 80, 82, 83, 85, 86, 87 (OB83 only for PROFINET IO) |
| OB / Number of synchronous error OBs | 2; OB 121, 122 |
| Nesting depth / per priority class | 16 |
| Nesting depth / additional within an error OB | 4 |
| S7 counter / Number | 256 |
| S7 counter / Retentivity / adjustable | Yes |
| S7 counter / Retentivity / preset | Z 0 to Z 7 |
| S7 counter / Counting range / can be set | Yes |
| S7 counter / Counting range / lower limit | 0 |
| S7 counter / Counting range / upper limit | 999 |
| IEC counter / present | Yes |
| IEC counter / Type | SFB |
| IEC counter / Number | Unlimited (limited only by RAM capacity) |
| S7 timer / Number | 256 |
| S7 timer / Retentivity / adjustable | Yes |
| S7 timer / Retentivity / preset | No retentivity |
| S7 timer / Time range / lower limit | 10 ms |
| S7 timer / Time range / upper limit | 9 990 s |
| IEC timer / present | Yes |
| IEC timer / Type | SFB |
| IEC timer / Number | Unlimited (limited only by RAM capacity) |
| Retentive data area (incl. timers, counters, flags), max. | 64 kbyte |
| Flag / Size, max. | 256 byte |
| Flag / Retentivity available | Yes; MB 0 to MB 255 |
| Flag / Retentivity preset | MB 0 to MB 15 |
| Flag / Number of clock memories | 8; 1 memory byte |
| Data blocks / Retentivity adjustable | Yes; via non-retain property on DB |
| Data blocks / Retentivity preset | Yes |
| Local data / per priority class, max. | 32 kbyte; Max. 2048 bytes per block |
| I/O address area / Inputs | 2 048 byte |
| I/O address area / Outputs | 2 048 byte |
| I/O address area / of which distributed / Inputs | 2 003 byte |
| I/O address area / of which distributed / Outputs | 2 010 byte |
| Process image / Inputs | 2 048 byte |
| Process image / Outputs | 2 048 byte |
| Process image / Inputs, adjustable | 2 048 byte |
| Process image / Outputs, adjustable | 2 048 byte |
| Process image / Inputs, default | 256 byte |
| Process image / Outputs, default | 256 byte |
| Subprocess images / Number of subprocess images, max. | 1; With PROFINET IO, the length of the user data is limited to 1600 bytes |
| Digital channels / Inputs | 16 048 |
| Digital channels / Inputs / of which central | 1 016 |
| Digital channels / Outputs | 16 096 |
| Digital channels / Outputs / of which central | 1 008 |
| Analog channels / Inputs | 1 006 |
| Analog channels / Inputs / of which central | 253 |
| Analog channels / Outputs | 1 007 |
| Analog channels / Outputs / of which central | 250 |
| Hardware configuration / Number of expansion units, max. | 3 |
| Number of DP masters / integrated | 1 |
| Number of DP masters / via CP | 4 |
| Number of operable FMs and CPs (recommended) / FM | 8 |
| Number of operable FMs and CPs (recommended) / CP, PtP | 8 |
| Number of operable FMs and CPs (recommended) / CP, LAN | 10 |
| Rack / Racks, max. | 4 |
| Rack / Modules per rack, max. | 8; In rack 3 max. 7 |
| Clock / Hardware clock (real-time) | Yes |
| Clock / retentive and synchronizable | Yes |
| Clock / Backup time | 6 wk; At 40 °C ambient temperature |
| Clock / Deviation per day, max. | 10 s; Typ.: 2 s |
| Clock / Behavior of the clock following POWER-ON | Clock continues running after POWER OFF |
| Clock / Behavior of the clock following expiry of backup period | the clock continues at the time of day it had when power was switched off |
| Operating hours counter / Number | 1 |
| Operating hours counter / Number/Number range | 0 |
| Operating hours counter / Range of values | 0 to 2^31 hours (when using SFC 101) |
| Operating hours counter / Granularity | 1 h |
| Operating hours counter / retentive | Yes; Must be restarted at each restart |
| Clock synchronization / supported | Yes |
| Clock synchronization / to MPI, master | Yes |
| Clock synchronization / on MPI, device | Yes |
| Clock synchronization / to DP, master | Yes; With DP slave only slave clock |
| Clock synchronization / on DP, device | Yes |
| Clock synchronization / in AS, master | Yes |
| Clock synchronization / in AS, device | Yes |
| Clock synchronization / on Ethernet via NTP | Yes; As client |
| Number of digital inputs | 24 |
| Number of digital inputs / of which inputs usable for technological functions | 16 |
| Digital inputs / integrated channels (DI) | 24 |
| Digital inputs / Input characteristic curve in accordance with IEC 61131, type 1 | Yes |
| Number of simultaneously controllable inputs / horizontal installation / up to 40 °C, max. | 24 |
| Number of simultaneously controllable inputs / horizontal installation / up to 60 °C, max. | 12 |
| Number of simultaneously controllable inputs / vertical installation / up to 40 °C, max. | 12 |
| Input voltage / Rated value (DC) | 24 V |
| Input voltage / for signal "0" | -3 to +5V |
| Input voltage / 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; 0.1 / 0.3 / 3 / 15 ms (You can reconfigure the input delay of the standard inputs during program runtime. Please note that under certain circumstances your newly set filter time may not be effective until the next filter cycle.) |
| Input delay (for rated value of input voltage) / for standard inputs / Rated value | 3 ms |
| Input delay (for rated value of input voltage) / for technological functions / at "0" to "1", max. | 8 µs; Minimum pulse width/minimum pause between pulses at maximum counting frequency |
| Digital inputs / Cable length / shielded, max. | 1 000 m; 50 m for technological functions |
| Digital inputs / Cable length / unshielded, max. | 600 m; for technological functions: No |
| Cable length / for technological functions / shielded, max. | 50 m; at maximum count frequency |
| Cable length / for technological functions / unshielded, max. | not allowed |
| Number of digital outputs | 16 |
| Number of digital outputs / of which high-speed outputs | 4; Notice: You cannot connect the fast outputs of your CPU in parallel |
| Digital outputs / integrated channels (DO) | 16 |
| Digital outputs / Short-circuit protection | Yes; Clocked electronically |
| Short-circuit protection / Response threshold, typ. | 1 A |
| Digital outputs / Limitation of inductive shutdown voltage to | L+ (-48 V) |
| Controlling a digital input | Yes |
| Switching capacity of the outputs / on lamp load, max. | 5 W |
| Load resistance range / lower limit | 48 Ω |
| Load resistance range / upper limit | 4 kΩ |
| Output voltage / for signal "1", min. | L+ (-0.8 V) |
| Output current / for signal "1" rated value | 500 mA |
| Output current / for signal "1" permissible range, min. | 5 mA |
| Output current / for signal "1" permissible range, max. | 0.6 A |
| Output current / for signal "1" minimum load current | 5 mA |
| Output current / for signal "0" residual current, max. | 0.5 mA |
| Parallel switching of two outputs / for uprating | No |
| Parallel switching of two outputs / for redundant control of a load | Yes |
| Switching frequency / with resistive load, max. | 100 Hz |
| Switching frequency / with inductive load, max. | 0.5 Hz |
| Switching frequency / on lamp load, max. | 100 Hz |
| Switching frequency / of the pulse outputs, with resistive load, max. | 2.5 kHz |
| Total current of the outputs (per group) / horizontal installation / up to 40 °C, max. | 3 A |
| Total current of the outputs (per group) / horizontal installation / up to 60 °C, max. | 2 A |
| Total current of the outputs (per group) / vertical installation / up to 40 °C, max. | 2 A |
| Digital outputs / Cable length / shielded, max. | 1 000 m |
| Digital outputs / Cable length / unshielded, max. | 600 m |
| Number of analog inputs | 5 |
| Number of analog inputs / For voltage/current measurement | 4 |
| Number of analog inputs / For resistance/resistance thermometer measurement | 1 |
| Analog inputs / integrated channels (AI) | 5; 4x current/voltage, 1x resistance |
| Analog inputs / permissible input voltage for current input (destruction limit), max. | 5 V; Permanent |
| Analog inputs / permissible input voltage for voltage input (destruction limit), max. | 30 V; Permanent |
| Analog inputs / permissible input current for voltage input (destruction limit), max. | 0.5 mA; Permanent |
| Analog inputs / permissible input current for current input (destruction limit), max. | 50 mA; Permanent |
| Analog inputs / Electrical input frequency, max. | 400 Hz |
| Analog inputs / No-load voltage for resistance-type transmitter, typ. | 3.3 V |
| Analog inputs / Constant measurement current for resistance-type transmitter, typ. | 1.25 mA |
| Analog inputs / Technical unit for temperature measurement adjustable | Yes; Degrees Celsius / degrees Fahrenheit / Kelvin |
| Input ranges / Voltage | Yes; ±10 V / 100 kΩ; 0 V to 10 V / 100 kΩ |
| Input ranges / Current | Yes; ±20 mA / 100 Ω; 0 mA to 20 mA / 100 Ω; 4 mA to 20 mA / 100 Ω |
| Input ranges / Resistance thermometer | Yes; Pt 100 / 10 MΩ |
| Input ranges / Resistance | Yes; 0 Ω to 600 Ω / 10 MΩ |
| Input ranges (rated values), voltages / 0 to +10 V | Yes |
| Input ranges (rated values), voltages / 0 to +10 V / Input resistance (0 to 10 V) | 100 kΩ |
| Input ranges (rated values), currents / 0 to 20 mA | Yes |
| Input ranges (rated values), currents / 0 to 20 mA / Input resistance (0 to 20 mA) | 100 Ω |
| Input ranges (rated values), currents / -20 mA to +20 mA | Yes |
| Input ranges (rated values), currents / -20 mA to +20 mA / Input resistance (-20 mA to +20 mA) | 100 Ω |
| Input ranges (rated values), currents / 4 mA to 20 mA | Yes |
| Input ranges (rated values), currents / 4 mA to 20 mA / Input resistance (4 mA to 20 mA) | 100 Ω |
| Input ranges (rated values), resistance thermometer / Pt 100 | Yes |
| Input ranges (rated values), resistance thermometer / Pt 100 / Input resistance (Pt 100) | 10 MΩ |
| Input ranges (rated values), resistors / 0 to 600 ohms | Yes |
| Input ranges (rated values), resistors / 0 to 600 ohms / Input resistance (0 to 600 ohms) | 10 MΩ |
| Thermocouple (TC) / Temperature compensation / Parameterizable | No |
| Characteristic linearization / Parameterizable | Yes; by software |
| Characteristic linearization / Parameterizable / for resistance thermometer | Pt 100 |
| Analog inputs / Cable length / shielded, max. | 100 m |
| Analog outputs / integrated channels (AO) | 2 |
| Analog outputs / Voltage output, short-circuit protection | Yes |
| Analog outputs / Voltage output, short-circuit current, max. | 55 mA |
| Analog outputs / Current output, no-load voltage, max. | 14 V |
| Output ranges, voltage / 0 to 10 V | Yes |
| Output ranges, voltage / -10 V to +10 V | Yes |
| Output ranges, current / 0 to 20 mA | Yes |
| Output ranges, current / -20 mA to +20 mA | Yes |
| Output ranges, current / 4 mA to 20 mA | Yes |
| Connection of actuators / for voltage output two-wire connection | Yes; Without compensation of the line resistances |
| Connection of actuators / for voltage output four-wire connection | No |
| Connection of actuators / for current output two-wire connection | Yes |
| Load impedance (in rated range of output) / with voltage outputs, min. | 1 kΩ |
| Load impedance (in rated range of output) / with voltage outputs, capacitive load, max. | 0.1 µF |
| Load impedance (in rated range of output) / with current outputs, max. | 300 Ω |
| Load impedance (in rated range of output) / with current outputs, inductive load, max. | 0.1 mH |
| Destruction limits against externally applied voltages and currents / Voltages at the outputs towards MANA | 16 V; Permanent |
| Destruction limits against externally applied voltages and currents / Current, max. | 50 mA; Permanent |
| Analog outputs / Cable length / shielded, max. | 200 m |
| Analog value generation for the inputs / Measurement principle | Actual value encryption (successive approximation) |
| Integration and conversion time/resolution per channel / Resolution with overrange (bit including sign), max. | 12 bit |
| Integration and conversion time/resolution per channel / Integration time, parameterizable | Yes; 16.6 / 20 ms |
| Integration and conversion time/resolution per channel / Interference voltage suppression for interference frequency f1 in Hz | 50 / 60 Hz |
| Integration and conversion time/resolution per channel / Time constant of the input filter | 0.38 ms |
| Integration and conversion time/resolution per channel / Basic execution time of the module (all channels released) | 1 ms |
| Integration and conversion time/resolution per channel / Conversion time (per channel) | 1 ms |
| Settling time / for resistive load | 0.6 ms |
| Settling time / for capacitive load | 1 ms |
| Settling time / for inductive load | 0.5 ms |
| Connection of signal encoders / for voltage measurement | Yes |
| Connection of signal encoders / for current measurement as 2-wire transducer | Yes; with external supply |
| Connection of signal encoders / for current measurement as 4-wire transducer | Yes |
| Connection of signal encoders / for resistance measurement with two-wire connection | Yes; Without compensation of the line resistances |
| Connection of signal encoders / for resistance measurement with three-wire connection | No |
| Connection of signal encoders / for resistance measurement with four-wire connection | No |
| Connectable encoders / 2-wire sensor | Yes |
| Connectable encoders / 2-wire sensor / permissible quiescent current (2-wire sensor), max. | 1.5 mA |
| Errors/accuracies / Temperature error (relative to input range), (+/-) | 0.006 %/K |
| Errors/accuracies / Crosstalk between the inputs, min. | 60 dB |
| Errors/accuracies / Repeat accuracy in steady state at 25 °C (relative to input range), (+/-) | 0.06 % |
| Errors/accuracies / Output ripple (relative to output range, bandwidth 0 to 50 kHz), (+/-) | 0.1 % |
| Errors/accuracies / Linearity error (relative to output range), (+/-) | 0.15 % |
| Errors/accuracies / Temperature error (relative to output range), (+/-) | 0.01 %/K |
| Errors/accuracies / Crosstalk between the outputs, min. | 60 dB |
| Errors/accuracies / Repeat accuracy in steady state at 25 °C (relative to output range), (+/-) | 0.06 % |
| Operational error limit in overall temperature range / Voltage, relative to input range, (+/-) | 1 % |
| Operational error limit in overall temperature range / Current, relative to input range, (+/-) | 1 % |
| Operational error limit in overall temperature range / Resistance, relative to input range, (+/-) | 1 % |
| Operational error limit in overall temperature range / Voltage, relative to output range, (+/-) | 1 % |
| Operational error limit in overall temperature range / Current, relative to output range, (+/-) | 1 % |
| Basic error limit (operational limit at 25 °C) / Voltage, relative to input range, (+/-) | 0.8 %; Linearity error ±0.06 % |
| Basic error limit (operational limit at 25 °C) / Current, relative to input range, (+/-) | 0.8 %; Linearity error ±0.06 % |
| Basic error limit (operational limit at 25 °C) / Resistance, relative to input range, (+/-) | 0.8 %; Linearity error ±0.2 % |
| Basic error limit (operational limit at 25 °C) / Resistance thermometer, relative to input range, (+/-) | 0.8 % |
| Basic error limit (operational limit at 25 °C) / Voltage, relative to output range, (+/-) | 0.8 % |
| Basic error limit (operational limit at 25 °C) / Current, relative to output range, (+/-) | 0.8 % |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency / Series mode interference (peak value of interference < rated value of input range), min. | 30 dB |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency / Common mode interference, min. | 40 dB |
| Number of PROFINET interfaces | 1; 2 ports (switch) RJ45 |
| Number of RS 485 interfaces | 1; Combined MPI / PROFIBUS DP |
| Number of RS 422 interfaces | 0 |
| 1. Interface / Interface type | Integrated RS 485 interface |
| 1. Interface / Isolated | Yes |
| Interface types / RS 485 | Yes |
| Interface types / Output current of the interface, max. | 200 mA |
| 1. Interface / Protocols / MPI | Yes |
| 1. Interface / Protocols / PROFIBUS DP master | Yes |
| 1. Interface / Protocols / PROFIBUS DP device | Yes |
| Protocols / Point-to-point connection | No |
| MPI / Transmission rate, max. | 12 Mbit/s |
| MPI / Services / PG/OP communication | Yes |
| MPI / Services / Routing | Yes |
| MPI / Services / Global data communication | Yes |
| MPI / Services / S7 basic communication | Yes |
| MPI / Services / S7 communication | Yes |
| MPI / Services / S7 communication, as client | No; but via CP and loadable FB |
| MPI / Services / S7 communication, as server | Yes |
| PROFIBUS DP master / Transmission rate, max. | 12 Mbit/s |
| PROFIBUS DP master / max. number of DP devices | 124 |
| PROFIBUS DP master / Services / PG/OP communication | Yes |
| PROFIBUS DP master / Services / Routing | Yes |
| PROFIBUS DP master / Services / Global data communication | No |
| PROFIBUS DP master / Services / S7 basic communication | Yes; I blocks only |
| PROFIBUS DP master / Services / S7 communication | Yes |
| PROFIBUS DP master / Services / S7 communication, as client | No |
| PROFIBUS DP master / Services / S7 communication, as server | Yes |
| PROFIBUS DP master / Services / Equidistance | Yes |
| PROFIBUS DP master / Services / Isochronous mode | No |
| PROFIBUS DP master / Services / SYNC/FREEZE | Yes |
| PROFIBUS DP master / Services / activation/deactivation of DP devices | Yes |
| PROFIBUS DP master / Services / max. number of DP devices that can be activated/deactivated at the same time | 8 |
| PROFIBUS DP master / Services / Direct data exchange (slave-to-slave communication) | Yes; as subscriber |
| PROFIBUS DP master / Services / DPV1 | Yes |
| PROFIBUS DP master / Address area / Inputs, max. | 2 kbyte |
| PROFIBUS DP master / Address area / Outputs, max. | 2 kbyte |
| PROFIBUS DP master / User data per DP device / Inputs, max. | 244 byte |
| PROFIBUS DP master / User data per DP device / Outputs, max. | 244 byte |
| PROFIBUS DP device / Transmission rate, max. | 12 Mbit/s |
| PROFIBUS DP device / automatic baud rate search | Yes; only with passive interface |
| PROFIBUS DP device / Address area, max. | 32 |
| PROFIBUS DP device / User data per address area, max. | 32 byte |
| PROFIBUS DP device / Services / PG/OP communication | Yes |
| PROFIBUS DP device / Services / Routing | Yes; Only with active interface |
| PROFIBUS DP device / Services / Global data communication | No |
| PROFIBUS DP device / Services / S7 basic communication | No |
| PROFIBUS DP device / Services / S7 communication | Yes |
| PROFIBUS DP device / Services / S7 communication, as client | No |
| PROFIBUS DP device / Services / S7 communication, as server | Yes; Connection configured on one side only |
| PROFIBUS DP device / Services / Direct data exchange (slave-to-slave communication) | Yes |
| PROFIBUS DP device / Services / DPV1 | No |
| PROFIBUS DP device / Transfer memory / Inputs | 244 byte |
| PROFIBUS DP device / Transfer memory / Outputs | 244 byte |
| 2. Interface / Interface type | PROFINET |
| 2. Interface / Isolated | Yes |
| 2. Interface / automatic detection of transmission rate | Yes; 10/100 Mbit/s |
| 2. Interface / Autonegotiation | Yes |
| 2. Interface / Autocrossing | Yes |
| 2. Interface / Change of IP address at runtime, supported | Yes |
| Interface types / RJ 45 (Ethernet) | Yes |
| Interface types / Number of ports | 2 |
| Interface types / integrated switch | Yes |
| 2. Interface / Protocols / MPI | No |
| Protocols / PROFINET IO Controller | Yes; Also simultaneously with IO-Device functionality |
| Protocols / PROFINET IO Device | Yes; Also simultaneously with IO Controller functionality |
| Protocols / PROFINET CBA | Yes |
| 2. Interface / Protocols / PROFIBUS DP master | No |
| 2. Interface / Protocols / PROFIBUS DP device | No |
| Protocols / Open IE communication | Yes; Via TCP/IP, ISO on TCP, and UDP |
| Protocols / Web server | Yes |
| Protocols / Media redundancy | Yes |
| PROFINET IO Controller / Transmission rate, max. | 100 Mbit/s |
| PROFINET IO Controller / Services / PG/OP communication | Yes |
| PROFINET IO Controller / Services / Routing | Yes |
| PROFINET IO Controller / Services / S7 communication | Yes; With loadable FBs, max. configurable connections: 10, max. number of instances: 32 |
| PROFINET IO Controller / Services / Isochronous mode | Yes; OB 61 |
| PROFINET IO Controller / Services / IRT | Yes |
| PROFINET IO Controller / Services / Shared device | Yes |
| PROFINET IO Controller / Services / Prioritized startup | Yes |
| PROFINET IO Controller / Services / Number of IO devices with prioritized startup, max. | 32 |
| PROFINET IO Controller / Services / Number of connectable IO Devices, max. | 128 |
| PROFINET IO Controller / Services / Of which IO devices with IRT, max. | 64 |
| 2. Interface / PROFINET IO Controller / Services / Number of connectable IO Devices, max. / Of which IO devices with IRT, max. / of which in line, max. | 64 |
| PROFINET IO Controller / Services / Number of IO Devices with IRT and the option "high flexibility" | 128 |
| 2. Interface / PROFINET IO Controller / Services / Number of IO Devices with IRT and the option "high flexibility" / of which in line, max. | 61 |
| PROFINET IO Controller / Services / Number of connectable IO Devices for RT, max. | 128 |
| 2. Interface / PROFINET IO Controller / Services / Number of connectable IO Devices for RT, max. / of which in line, max. | 128 |
| PROFINET IO Controller / Services / Activation/deactivation of IO Devices | Yes |
| PROFINET IO Controller / Services / Number of IO Devices that can be simultaneously activated/deactivated, max. | 8 |
| PROFINET IO Controller / Services / IO Devices changing during operation (partner ports), supported | Yes |
| PROFINET IO Controller / Services / Number of IO Devices per tool, max. | 8 |
| PROFINET IO Controller / Services / Device replacement without swap medium | Yes |
| PROFINET IO Controller / Services / Send cycles | 250 μs, 500 μs,1 ms; 2 ms, 4 ms (not in the case of IRT with "high flexibility" option) |
| PROFINET IO Controller / Services / Updating time | 250 µs to 512 ms (depending on the operating mode, see Manual "S7-300 CPU 31xC and CPU 31x, technical Data" for more details) |
| PROFINET IO Controller / Address area / Inputs, max. | 2 kbyte |
| PROFINET IO Controller / Address area / Outputs, max. | 2 kbyte |
| PROFINET IO Controller / Address area / User data consistency, max. | 1 024 byte |
| PROFINET IO Device / Services / PG/OP communication | Yes |
| PROFINET IO Device / Services / Routing | Yes |
| PROFINET IO Device / Services / S7 communication | Yes; With loadable FBs, max. configurable connections: 10, max. number of instances: 32 |
| PROFINET IO Device / Services / Isochronous mode | No |
| PROFINET IO Device / Services / IRT | Yes |
| PROFINET IO Device / Services / PROFIenergy | Yes; With SFB 73 / 74 prepared for loadable PROFIenergy standard FB for I- Device |
| PROFINET IO Device / Services / Shared device | Yes |
| PROFINET IO Device / Services / Number of IO Controllers with shared device, max. | 2 |
| PROFINET IO Device / Services / Transfer memory / Inputs, max. | 1 440 byte; Per IO Controller with shared device |
| PROFINET IO Device / Services / Transfer memory / Outputs, max. | 1 440 byte; Per IO Controller with shared device |
| PROFINET IO Device / Services / Submodules / Number, max. | 64 |
| PROFINET IO Device / Services / Submodules / User data per submodule, max. | 1 024 byte |
| PROFINET IO Device / PROFINET CBA / acyclic transmission | Yes |
| PROFINET IO Device / PROFINET CBA / cyclic transmission | Yes |
| PROFINET IO Device / Open IE communication / Number of connections, max. | 8 |
| PROFINET IO Device / Open IE communication / Local port numbers used at the system end | 0, 20, 21, 23, 25, 80, 102, 135, 161, 443, 8080, 34962, 34963, 34964, 65532, 65533, 65534, 65535 |
| PROFINET IO Device / Open IE communication / Keep-alive function, supported | Yes |
| Protocols / PROFIsafe | No |
| Redundancy mode / Media redundancy / Switchover time on line break, typ. | 200 ms; PROFINET MRP |
| Redundancy mode / Media redundancy / Number of stations in the ring, max. | 50 |
| Open IE communication / TCP/IP | Yes; via integrated PROFINET interface and loadable FBs |
| Open IE communication / TCP/IP / Number of connections, max. | 8 |
| Open IE communication / TCP/IP / Data length for connection type 01H, max. | 1 460 byte |
| Open IE communication / TCP/IP / Data length for connection type 11H, max. | 32 768 byte |
| Open IE communication / TCP/IP / several passive connections per port, supported | Yes |
| Open IE communication / ISO-on-TCP (RFC1006) | Yes; via integrated PROFINET interface and loadable FBs |
| Open IE communication / ISO-on-TCP (RFC1006) / Number of connections, max. | 8 |
| Open IE communication / ISO-on-TCP (RFC1006) / Data length, max. | 32 768 byte |
| Open IE communication / UDP | Yes; via integrated PROFINET interface and loadable FBs |
| Open IE communication / UDP / Number of connections, max. | 8 |
| Open IE communication / UDP / Data length, max. | 1 472 byte |
| Web server / supported | Yes |
| Web server / User-defined websites | Yes |
| Web server / Number of HTTP clients | 5 |
| PG/OP communication | Yes |
| Communication functions / Data record routing | Yes |
| Global data communication / supported | Yes |
| Global data communication / Number of GD loops, max. | 8 |
| Global data communication / Number of GD packets, max. | 8 |
| Global data communication / Number of GD packets, transmitter, max. | 8 |
| Global data communication / Number of GD packets, receiver, max. | 8 |
| Global data communication / Size of GD packets, max. | 22 byte |
| Global data communication / Size of GD packet (of which consistent), max. | 22 byte |
| S7 basic communication / supported | Yes |
| S7 basic communication / User data per job, max. | 76 byte |
| S7 basic communication / User data per job (of which consistent), max. | 76 byte; 76 bytes (with X_SEND or X_RCV); 64 bytes (with X_PUT or X_GET as server) |
| S7 communication / supported | Yes |
| S7 communication / as server | Yes |
| S7 communication / as client | Yes; via integrated PROFINET interface and loadable FB or via CP and loadable FB |
| S7 communication / User data per job, max. | See online help of STEP 7 (shared parameters of the SFBs/FBs and of the SFCs/FCs of S7 Communication) |
| S5 compatible communication / supported | Yes; via CP and loadable FC |
| PROFINET CBA (at set setpoint communication load) / Setpoint for the CPU communication load | 50 % |
| PROFINET CBA (at set setpoint communication load) / Number of remote interconnection partners | 32 |
| PROFINET CBA (at set setpoint communication load) / number of master/device functions | 30 |
| PROFINET CBA (at set setpoint communication load) / total of all master/device connections | 1 000 |
| PROFINET CBA (at set setpoint communication load) / data length of all incoming master/device connections, max. | 4 000 byte |
| PROFINET CBA (at set setpoint communication load) / data length of all outgoing master/device connections, max. | 4 000 byte |
| PROFINET CBA (at set setpoint communication load) / Number of device-internal and PROFIBUS interconnections | 500 |
| PROFINET CBA (at set setpoint communication load) / Data length of device-internal und PROFIBUS interconnections, max. | 4 000 byte |
| PROFINET CBA (at set setpoint communication load) / Data length per connection, max. | 1 400 byte |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Transmission frequency: Transmission interval, min. | 10 ms |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Number of incoming interconnections | 200 |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Number of outgoing interconnections | 200 |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Data length of all incoming interconnections, max. | 2 000 byte |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Data length of all outgoing interconnections, max. | 2 000 byte |
| PROFINET CBA (at set setpoint communication load) / Remote interconnections with cyclic transmission / Data length per connection, max. | 450 byte |
| PROFINET CBA (at set setpoint communication load) / HMI variables via PROFINET (acyclic) / Number of stations that can log on for HMI variables (PN OPC/iMap) | 3; 2x PN OPC/1x iMap |
| PROFINET CBA (at set setpoint communication load) / HMI variables via PROFINET (acyclic) / HMI variable updating | 500 ms |
| PROFINET CBA (at set setpoint communication load) / HMI variables via PROFINET (acyclic) / Number of HMI variables | 200 |
| PROFINET CBA (at set setpoint communication load) / HMI variables via PROFINET (acyclic) / Data length of all HMI variables, max. | 2 000 byte |
| PROFINET CBA (at set setpoint communication load) / PROFIBUS proxy functionality / supported | Yes |
| PROFINET CBA (at set setpoint communication load) / PROFIBUS proxy functionality / Number of linked PROFIBUS devices | 16 |
| PROFINET CBA (at set setpoint communication load) / PROFIBUS proxy functionality / Data length per connection, max. | 240 byte; Slave-dependent |
| Number of connections / overall | 12 |
| Number of connections / usable for PG communication | 11 |
| Number of connections / usable for PG communication / reserved for PG communication | 1 |
| Number of connections / usable for PG communication / adjustable for PG communication, min. | 1 |
| Number of connections / usable for PG communication / adjustable for PG communication, max. | 11 |
| Number of connections / usable for OP communication | 11 |
| Number of connections / usable for OP communication / reserved for OP communication | 1 |
| Number of connections / usable for OP communication / adjustable for OP communication, min. | 1 |
| Number of connections / usable for OP communication / adjustable for OP communication, max. | 11 |
| Number of connections / usable for S7 basic communication | 8 |
| Number of connections / usable for S7 basic communication / reserved for S7 basic communication | 0 |
| Number of connections / usable for S7 basic communication / adjustable for S7 basic communication, min. | 0 |
| Number of connections / usable for S7 basic communication / adjustable for S7 basic communication, max. | 8 |
| Number of connections / usable for S7 communication | 10 |
| Number of connections / usable for S7 communication / reserved for S7 communication | 0 |
| Number of connections / usable for S7 communication / adjustable for S7 communication, min. | 0 |
| Number of connections / usable for S7 communication / adjustable for S7 communication, max. | 10 |
| Number of connections / total number of instances, max. | 32 |
| Number of connections / usable for routing | X1 as MPI: max. 10; X1 as DP master: max. 24; X1 as DP slave (active): max. 14; X2 as PROFINET: 24 max. |
| S7 message functions / Number of login stations for message functions, max. | 12; Depending on the configured connections for PG/OP and S7 basic communication |
| S7 message functions / Process diagnostic messages | Yes |
| S7 message functions / simultaneously active Alarm_S blocks, max. | 300 |
| Test commissioning functions / Status block | Yes; Up to 2 simultaneously |
| Test commissioning functions / Single step | Yes |
| Test commissioning functions / Number of breakpoints | 4 |
| Status/control / Status/control variable | Yes |
| Status/control / Variables | Inputs, outputs, memory bits, DB, times, counters |
| Status/control / Number of variables, max. | 30 |
| Status/control / Number of variables, max. / of which status variables, max. | 30 |
| Status/control / Number of variables, max. / of which control variables, max. | 14 |
| Forcing / Forcing | Yes |
| Forcing / Forcing, variables | Inputs, outputs |
| Forcing / Number of variables, max. | 10 |
| Diagnostic buffer / present | Yes |
| Diagnostic buffer / Number of entries, max. | 500 |
| Diagnostic buffer / Number of entries, max. / can be set | No |
| Diagnostic buffer / Number of entries, max. / of which powerfail-proof | 100; Only the last 100 entries are retained |
| Diagnostic buffer / Number of entries readable in RUN, max. | 499 |
| Diagnostic buffer / Number of entries readable in RUN, max. / can be set | Yes; From 10 to 499 |
| Diagnostic buffer / Number of entries readable in RUN, max. / preset | 10 |
| Service data / Can be read out | Yes |
| Diagnostics indication LED / Status indicator digital input (green) | Yes |
| Diagnostics indication LED / Status indicator digital output (green) | Yes |
| Counter / Number of counters | 4; See "Technological Functions" manual |
| Counter / Counting frequency, max. | 60 kHz |
| Integrated Functions / Frequency measurement | Yes |
| Frequency measurement / Number of frequency meters | 4; up to 60 kHz (see "Technological Functions" manual) |
| Integrated Functions / controlled positioning | Yes |
| integrated function blocks (closed-loop control) | Yes; PID controller (see "Technological Functions" manual) |
| Integrated Functions / PID controller | Yes |
| Integrated Functions / Number of pulse outputs | 4; Pulse width modulation up to 2.5 kHz (see "Technological Functions" Manual) |
| Integrated Functions / Limit frequency (pulse) | 2.5 kHz |
| Potential separation digital inputs / Potential separation digital inputs | Yes |
| Potential separation digital inputs / between the channels | No |
| Potential separation digital inputs / between the channels and backplane bus | Yes |
| Potential separation digital outputs / Potential separation digital outputs | Yes |
| Potential separation digital outputs / between the channels | Yes |
| Potential separation digital outputs / between the channels, in groups of | 8 |
| Potential separation digital outputs / between the channels and backplane bus | Yes |
| Potential separation analog inputs / Potential separation analog inputs | Yes; common for analog I/O |
| Potential separation analog inputs / between the channels | No |
| Potential separation analog inputs / between the channels and backplane bus | Yes |
| Potential separation analog outputs / Potential separation analog outputs | Yes; common for analog I/O |
| Potential separation analog outputs / between the channels | No |
| Potential separation analog outputs / between the channels and backplane bus | Yes |
| Isolation tested with | 600 V DC |
| Ambient temperature during operation / min. | 0 °C |
| Ambient temperature during operation / max. | 60 °C |
| Configuration software / STEP 7 | Yes; V5.5 or higher |
| Programming / Command set | see instruction list |
| Programming / Nesting levels | 8 |
| Programming / System functions (SFC) | see instruction list |
| Programming / System function blocks (SFB) | see instruction list |
| Programming / Programming language / LAD | Yes |
| Programming / Programming language / FBD | Yes |
| Programming / Programming language / STL | Yes |
| Programming / Programming language / SCL | Yes |
| Programming / Programming language / CFC | Yes |
| Programming / Programming language / GRAPH | Yes |
| Programming / Programming language / HiGraph® | Yes |
| Know-how protection / User program protection/password protection | Yes |
| Know-how protection / Block encryption | Yes; With S7 block Privacy |
| Width | 120 mm |
| Height | 125 mm |
| Depth | 130 mm |
| Weight, approx. | 730 g |
| Phase-out announced (PM400) | 1 October 2023 |
| Product cancellation (PM410) | 1 October 2025 |
| Spare part | Yes, supplied by Siemens as a spare part only |
Description
The Siemens 6ES7314-6EH04-0AB0 is the CPU 314C-2 PN/DP, a compact S7-300 CPU with its I/O built in. Siemens's data sheet lists 192 KB of work memory, 24 digital inputs and 16 digital outputs, four analog inputs plus one Pt100 input, two analog outputs and four high-speed counters up to 60 kHz, with a combined MPI/PROFIBUS DP interface and a PROFINET interface with a two-port switch. It needs two 40-pole front connectors and a Micro Memory Card, ordered separately. Siemens's data sheet marks it as a spare part. Siemens names no direct successor for the order number; its route forward is migration to the S7-1500.
Application: PLC controller with integrated I/O
Used with: SIMATIC S7-300 rack (S7-300 backplane bus)
What is the 6ES7314-6EH04-0AB0 used for?
It runs small machines and cells on its own, because the I/O is on the CPU, and can be extended with S7-300 modules or networked I/O. A failed 314C takes its own I/O down with it.
Key features
- 192 KB integrated work memory
- Integrated I/O: 24 DI, 16 DO, 4 AI, 2 AO and 1 Pt100 input
- 4 high-speed counters (60 kHz)
- MPI/PROFIBUS DP and PROFINET with 2-port switch
- Needs two 40-pole front connectors and a Micro Memory Card
- Discontinued by Siemens on 1 October 2025; spare part only
Documents and Resources
Associated Products
| Image | Product | Description | Stock | View | Add to RFQ |
|---|---|---|---|---|---|
 | 6ES7315-2AH14-0AB0Siemens | CPU 315-2 DP, 256 KB, MPI and PROFIBUS DP | In stock | View | |
 | 6ES7315-2EH14-0AB0Siemens | CPU 315-2 PN/DP, 384 KB, MPI/DP and PROFINET | In stock | View | |
 | 6ES7317-2EK14-0AB0Siemens | CPU 317-2 PN/DP, 1 MB, MPI/DP and PROFINET | In stock | View | |
 | 6ES7313-5BG04-0AB0Siemens | CPU 313C compact CPU with integrated I/O, MPI | In stock | View | |
 | 6ES7312-1AE14-0AB0Siemens | CPU 312, 32 KB, MPI | In stock | View | |
 | 6ES7314-1AG14-0AB0Siemens | CPU 314, 128 KB, MPI | In stock | View | |
 | 6ES7313-6CG04-0AB0Siemens | CPU 313C-2 DP compact CPU, 16 DI/16 DO, MPI and PROFIBUS DP | In stock | View | |
 | 6ES7314-6CH04-0AB0Siemens | CPU 314C-2 DP compact CPU with integrated I/O, MPI and PROFIBUS DP | In stock | View | |
 | 6ES7317-2AK14-0AB0Siemens | CPU 317-2 DP, 1 MB, MPI/DP and PROFIBUS DP | In stock | View | |
 | 6ES7312-5BF04-0AB0Siemens | CPU 312C compact, 64 KB, 10 DI/6 DO, MPI | In stock | View | |
 | 6ES7318-3EL01-0AB0Siemens | CPU 319-3 PN/DP, 2 MB, MPI/DP, DP and PROFINET | In stock | View | |
 | 6ES7315-6FF04-0AB0Siemens | CPU 315F-2 DP fail-safe, 384 KB, MPI and DP | In stock | View |
Product Questions
Is the 6ES7314-6EH04-0AB0 discontinued?
Yes. Its manufacturer lifecycle status is Discontinued.
Can another Siemens SIMATIC S7-300 part replace it?
Potential replacements must be checked against the required ratings, dimensions and connections. Sharing a family name does not establish interchangeability.
Do you ship worldwide?
Yes. TimControls ships worldwide. Parts usually ship within 3 to 7 working days of order confirmation, and the exact lead time and shipping options are stated on your quote. Include your delivery country and postal code when you ask for a quote.
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