Siemens S7-1500, AI 8 X U/R/RTD/TC HF; 6ES7531-7PF00-0AB0
SIMATIC S7-1500 analog input module AI 8xU/R/RTD/TC HF, 16 bit resolution, up to 21 bit Resolution at RT and TC, accuracy 0.1%, 8 channels in groups of 1; common...
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| SIMATIC S7-1500 analog input module AI 8xU/R/RTD/TC HF, 16 bit resolution, up to 21 bit Resolution at RT and TC, accuracy 0.1%, 8 channels in groups of 1; common mode voltage: 30 V AC/60 V DC, Diagnostics; Hardware interrupts Scalable temperature measuring range, thermocouple type C, Calibrate in RUN; Delivery including infeed element, shield bracket and shield terminal: Front connector (screw terminals or push-in) to be ordered separately |
| General information | |
| Product type designation | AI 8xU/R/RTD/TC HF |
| HW functional status | FS01 |
| Firmware version | V1.1.0 |
| ● FW update possible | Yes |
| Product function | |
| ● I&M data | Yes; I&M0 to I&M3 |
| ● Isochronous mode | No |
| ● Prioritized startup | Yes |
| ● Measuring range scalable | Yes |
| ● Scalable measured values | No |
| ● Adjustment of measuring range | No |
| Engineering with | |
| ● STEP 7 TIA Portal configurable/integrated from version | V14 / - |
| ● STEP 7 configurable/integrated from version | V5.5 SP3 / - |
| ● PROFIBUS from GSD version/GSD revision | V1.0 / V5.1 |
| ● PROFINET from GSD version/GSD revision | V2.3 / - |
| Operating mode | |
| ● Oversampling | No |
| ● MSI | Yes |
| CiR - Configuration in RUN | |
| Reparameterization possible in RUN | Yes |
| Calibration possible in RUN | Yes |
| Supply voltage | |
| Rated value (DC) | 24 V |
| permissible range, lower limit (DC) | 19.2 V |
| permissible range, upper limit (DC) | 28.8 V |
| Reverse polarity protection | Yes |
| Input current | |
| Current consumption, max. | 55 mA; with 24 V DC supply |
| Power | |
| Power available from the backplane bus | 0.85 W |
| Power loss | |
| Power loss, typ. | 1.9 W |
| Analog inputs | |
| Number of analog inputs | 8; Plus one additional RTD (reference) channel |
| ● For voltage measurement | 8; Plus one additional RTD (reference) channel |
| ● For resistance/resistance thermometer measurement | 8; Plus one additional RTD (reference) channel |
| ● For thermocouple measurement | 8; Plus one additional RTD (reference) channel |
| permissible input voltage for voltage input (destruction limit), max. | 20 V |
| Constant measurement current for resistance-type transmitter, typ. | 150 Ohm, 300 Ohm, 600 Ohm, Cu10, Cu50, Cu100, Ni10, Ni100, Ni120, Ni200, Pt10, Pt50, Pt100, Pt200 climate: 1 mA; 6 kOhm, Ni500, Ni1000, LG-Ni1000, Pt200 standard, Pt500, Pt1000, PTC: 0.25 mA |
| Technical unit for temperature measurement adjustable | Yes; °C/°F/K |
| Input ranges (rated values), voltages | |
| ● 0 to +5 V | No |
| ● 0 to +10 V | No |
| ● 1 V to 5 V | No |
| ● -1 V to +1 V | Yes |
| — Input resistance (-1 V to +1 V) | 10 MΩ |
| ● -10 V to +10 V | No |
| ● -2.5 V to +2.5 V | No |
| ● -25 mV to +25 mV | Yes |
| — Input resistance (-25 mV to +25 mV) | 10 MΩ |
| ● -250 mV to +250 mV | Yes |
| — Input resistance (-250 mV to +250 mV) | 10 MΩ |
| ● -5 V to +5 V | No |
| ● -50 mV to +50 mV | Yes |
| — Input resistance (-50 mV to +50 mV) | 10 MΩ |
| ● -500 mV to +500 mV | Yes |
| — Input resistance (-500 mV to +500 mV) | 10 MΩ |
| ● -80 mV to +80 mV | Yes |
| — Input resistance (-80 mV to +80 mV) | 10 MΩ |
| Input ranges (rated values), currents | |
| ● 0 to 20 mA | No |
| ● -20 mA to +20 mA | No |
| ● 4 mA to 20 mA | No |
| Input ranges (rated values), thermocouples | |
| ● Type B | Yes |
| — Input resistance (Type B) | 10 MΩ |
| ● Type C | Yes |
| — Input resistance (Type C) | 10 MΩ |
| ● Type E | Yes |
| — Input resistance (Type E) | 10 MΩ |
| ● Type J | Yes |
| — Input resistance (type J) | 10 MΩ |
| ● Type K | Yes |
| — Input resistance (Type K) | 10 MΩ |
| ● Type L | No |
| ● Type N | Yes |
| — Input resistance (Type N) | 10 MΩ |
| ● Type R | Yes |
| — Input resistance (Type R) | 10 MΩ |
| ● Type S | Yes |
| — Input resistance (Type S) | 10 MΩ |
| ● Type T | Yes |
| — Input resistance (Type T) | 10 MΩ |
| ● Type TXK/TXK(L) to GOST | Yes |
| — Input resistance (Type TXK/TXK(L) to GOST) | 10 MΩ |
| Input ranges (rated values), resistance thermometer | |
| ● Cu 10 | Yes; Standard/climate |
| — Input resistance (Cu 10) | 10 MΩ |
| ● Cu 10 according to GOST | Yes; Standard/climate |
| — Input resistance (Cu 10 according to GOST) | 10 MΩ |
| ● Cu 50 | Yes; Standard/climate |
| — Input resistance (Cu 50) | 10 MΩ |
| ● Cu 50 according to GOST | Yes; Standard/climate |
| — Input resistance (Cu 50 according to GOST) | 10 MΩ |
| ● Cu 100 | Yes; Standard/climate |
| — Input resistance (Cu 100) | 10 MΩ |
| ● Cu 100 according to GOST | Yes; Standard/climate |
| — Input resistance (Cu 100 according to GOST) | 10 MΩ |
| ● Ni 10 | Yes; Standard/climate |
| — Input resistance (Ni 10) | 10 MΩ |
| ● Ni 10 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 10 according to GOST) | 10 MΩ |
| ● Ni 100 | Yes; Standard/climate |
| — Input resistance (Ni 100) | 10 MΩ |
| ● Ni 100 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 100 according to GOST) | 10 MΩ |
| ● Ni 1000 | Yes; Standard/climate |
| — Input resistance (Ni 1000) | 10 MΩ |
| ● Ni 1000 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 1000 according to GOST) | 10 MΩ |
| ● LG-Ni 1000 | Yes; Standard/climate |
| — Input resistance (LG-Ni 1000) | 10 MΩ |
| ● Ni 120 | Yes; Standard/climate |
| — Input resistance (Ni 120) | 10 MΩ |
| ● Ni 120 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 120 according to GOST) | 10 MΩ |
| ● Ni 200 | Yes; Standard/climate |
| — Input resistance (Ni 200) | 10 MΩ |
| ● Ni 200 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 200 according to GOST) | 10 MΩ |
| ● Ni 500 | Yes; Standard/climate |
| — Input resistance (Ni 500) | 10 MΩ |
| ● Ni 500 according to GOST | Yes; Standard/climate |
| — Input resistance (Ni 500 according to GOST) | 10 MΩ |
| ● Pt 10 | Yes; Standard/climate |
| — Input resistance (Pt 10) | 10 MΩ |
| ● Pt 10 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 10 according to GOST) | 10 MΩ |
| ● Pt 50 | Yes; Standard/climate |
| — Input resistance (Pt 50) | 10 MΩ |
| ● Pt 50 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 50 according to GOST) | 10 MΩ |
| ● Pt 100 | Yes; Standard/climate |
| — Input resistance (Pt 100) | 10 MΩ |
| ● Pt 100 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 100 according to GOST) | 10 MΩ |
| ● Pt 1000 | Yes; Standard/climate |
| — Input resistance (Pt 1000) | 10 MΩ |
| ● Pt 1000 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 1000 according to GOST) | 10 MΩ |
| ● Pt 200 | Yes; Standard/climate |
| — Input resistance (Pt 200) | 10 MΩ |
| ● Pt 200 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 200 according to GOST) | 10 MΩ |
| ● Pt 500 | Yes; Standard/climate |
| — Input resistance (Pt 500) | 10 MΩ |
| ● Pt 500 according to GOST | Yes; Standard/climate |
| — Input resistance (Pt 500 according to GOST) | 10 MΩ |
| Input ranges (rated values), resistors | |
| ● 0 to 150 ohms | Yes |
| — Input resistance (0 to 150 ohms) | 10 MΩ |
| ● 0 to 300 ohms | Yes |
| — Input resistance (0 to 300 ohms) | 10 MΩ |
| ● 0 to 600 ohms | Yes |
| — Input resistance (0 to 600 ohms) | 10 MΩ |
| ● 0 to 3000 ohms | No |
| ● 0 to 6000 ohms | Yes |
| — Input resistance (0 to 6000 ohms) | 10 MΩ |
| ● PTC | Yes |
| — Input resistance (PTC) | 10 MΩ |
| Thermocouple (TC) | |
| Temperature compensation | |
| — parameterizable | Yes |
| — internal temperature compensation | Yes |
| — external temperature compensation via RTD | Yes |
| — Compensation for 0 °C reference point temperature | Yes; fixed value can be set |
| — Reference channel of the module | Yes; 9th channel that can be used as a genuine 9th RTD channel regardless of the parameterization of the other channels, or that can be used for compensation in the case of TC measurement |
| Cable length | |
| ● shielded, max. | 800 m; at U; 200 m at R/RTD/TC |
| Analog value generation for the inputs | |
| Integration and conversion time/resolution per channel | |
| ● Resolution with overrange (bit including sign), max. | 21 bit; For measuring mode RTC and TC when using the function "Scalable temperature measuring range" (32 bit REAL format); 16 bit for measuring mode R and U; 16 bit for all measuring modes when using the S7 format (16 bit INTEGER) |
| ● Integration time, parameterizable | Yes |
| ● Integration time (ms) | Fast mode: 2.5 / 16.67 / 20 / 100 ms, standard mode: 7.5 / 50 / 60 / 300 ms |
| ● Basic conversion time, including integration time (ms) | Fast mode: 4 / 18 / 22 / 102 ms; Standard mode: 9 / 52 / 62 / 302 ms |
| — additional conversion time for wire-break monitoring | Thermocouples, 150 Ohm, 300 Ohm, 600 Ohm, Cu10, Cu50, Cu100, Ni10, Ni100, Ni120, Ni200, Pt10, Pt50, Pt100: 4 ms; 6 kOhm, Ni500, Ni1000, LG-Ni1000, Pt200, Pt500, Pt1000: 13 ms |
| ● Interference voltage suppression for interference frequency f1 in Hz | 400 / 60 / 50 / 10 Hz |
| ● Basic execution time of the module (all channels released) | Corresponds to the channel with the highest basic conversion time |
| Smoothing of measured values | |
| ● parameterizable | Yes |
| ● Step: None | Yes |
| ● Step: low | Yes |
| ● Step: Medium | Yes |
| ● Step: High | Yes |
| Encoder | |
| Connection of signal encoders | |
| ● for voltage measurement | Yes |
| ● for current measurement as 2-wire transducer | No |
| ● for current measurement as 4-wire transducer | No |
| ● for resistance measurement with two-wire connection | Yes |
| ● for resistance measurement with three-wire connection | Yes; All measuring ranges except PTC; internal compensation of the cable resistances |
| ● for resistance measurement with four-wire connection | Yes; All measuring ranges except PTC |
| Errors/accuracies | |
| Linearity error (relative to input range), (+/-) | 0.02 % |
| Temperature error (relative to input range), (+/-) | 0.005 %/K |
| Crosstalk between the inputs, max. | -80 dB |
| Repeat accuracy in steady state at 25 °C (relative to input range), (+/-) | 0.02 % |
| Temperature error of internal compensation | ±1,5 °C |
| Operational error limit in overall temperature range | |
| ● Voltage, relative to input range, (+/-) | 0.1 % |
| ● Resistance, relative to input range, (+/-) | 0.1 % |
| ● Resistance thermometer, relative to input range, (+/-) | Cuxxx Standard: ±0.5 K, Cuxxx Klima: ±0.5 K, Ptxxx Standard: ±1 K, Ptxxx Klima: ±0.5 K, Nixxx Standard: ±0.5 K, Nixxx Klima: ±0.3 K |
| ● Thermocouple, relative to input range, (+/-) | Type B: > 600 °C ±2 K, Type E: > -200 °C ±1 K, Type J: > -210 °C ±1 K, Type K: > -200 °C ±2 K, Type N: > -200 °C ±2 K, Type R: > 0 °C ±2 K, Type S: > 0 °C ±2 K, Type T: > -200 °C ±1 K, Type C: ±4 K, Type TXK/TXK(L): ±1 K |
| Basic error limit (operational limit at 25 °C) | |
| ● Voltage, relative to input range, (+/-) | 0.05 % |
| ● Resistance, relative to input range, (+/-) | 0.05 % |
| ● Resistance thermometer, relative to input range, (+/-) | Cuxxx Standard: ±0.3 K, Cuxxx Klima: ±0.2 K, Ptxxx Standard: ±0.5 K, Ptxxx Klima: ±0.2 K, Nixxx Standard: ±0.3 K, Nixxx Klima: ±0.15 K |
| ● Thermocouple, relative to input range, (+/-) | Type B: > 600 °C ±1 K, Type E: > -200 °C ±0.5 K, Type J: > -210 °C ±0.5 K, Type K: > -200 °C ±1 K, Type N: > -200 °C ±1 K, Type R: > 0 °C ±1 K, Type S: > 0 °C ±1 K, Type T: > -200 °C ±0.5 K, Type C: ±2 K, Type TXK/TXK(L): ±0.5 K |
| 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. | 80 dB; in the Standard operating mode, 40 dB in the Fast operating mode |
| ● Common mode voltage, max. | 60 V DC/30 V AC |
| ● Common mode interference, min. | 80 dB |
| Interrupts/diagnostics/status information | |
| Diagnostics function | Yes |
| Alarms | |
| ● Diagnostic alarm | Yes |
| ● Limit value alarm | Yes; two upper and two lower limit values in each case |
| Diagnoses | |
| ● Monitoring the supply voltage | Yes |
| ● Wire-break | Yes; Only with TC, R, RTD |
| ● Overflow/underflow | Yes |
| Diagnostics indication LED | |
| ● RUN LED | Yes; green LED |
| ● ERROR LED | Yes; red LED |
| ● Monitoring of the supply voltage (PWR-LED) | Yes; green LED |
| ● Channel status display | Yes; green LED |
| ● for channel diagnostics | Yes; red LED |
| ● for module diagnostics | Yes; red LED |
| Potential separation | |
| Potential separation channels | |
| ● between the channels | Yes |
| ● between the channels, in groups of | 1 |
| ● between the channels and backplane bus | Yes |
| ● between the channels and the power supply of the electronics | Yes |
| Permissible potential difference | |
| between different circuits | 60 V DC/30 V AC; insulation rated for 120 V AC basic insulation: between the channels and the supply voltage L+; between the channels and the backplane bus; between the channels |
| Isolation | |
| Isolation tested with | 2 000 V DC between the channels and the supply voltage L+; 2 000 V DC between the channels and the backplane bus; 2 000 V DC between the channels; 707 V DC (type test) between the supply voltage L+ and the backplane bus |
| Standards, approvals, certificates | |
| Suitable for applications according to AMS 2750 | Yes; Declaration of Conformity, see online support entry 109757262 |
| Suitable for applications according to CQI-9 | Yes; Based on AMS 2750 E |
| Ambient conditions | |
| Ambient temperature during operation | |
| ● horizontal installation, min. | 0 °C |
| ● horizontal installation, max. | 60 °C |
| ● vertical installation, min. | 0 °C |
| ● vertical installation, max. | 40 °C |
| Dimensions | |
| Width | 35 mm |
| Height | 147 mm |
| Depth | 129 mm |
| Weights | |
| Weight, approx. | 290 g |
| Other | |
| Note: | for the R/RDT three-wire measurement, the conductor compensation is made alternating with the measurement; this then requires two module cycles for a measured value |
| last modified: | 4/11/2022 |
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