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| Article number | 6ES7231-5PD32-0XB0 | 6ES7231-5PF32-0XB0 |
| S7-1200, analog Input SM 1231 RTD, 4 AI | S7-1200, analog Input SM 1231 RTD, 8 AI | |
| General information | ||
| Product type designation | SM 1231, AI 4×16 bit RTD | SM 1231, AI 8×16 bit RTD |
| Supply voltage | ||
| Rated value (DC) | 24 V | 24 V |
| Input current | ||
| Current consumption, typ. | 40 mA | 40 mA |
| from backplane bus 5 V DC, typ. | 80 mA | 80 mA |
| Power loss | ||
| Power loss, typ. | 1.5 W | 1.5 W |
| Analog inputs | ||
| Number of analog inputs | 4; Resistance thermometer | 8; Resistance thermometer |
| permissible input voltage for voltage input (destruction limit), max. | ±35 V | ±35 V |
| Technical unit for temperature measurement adjustable | Degrees Celsius/degrees Fahrenheit | Degrees Celsius/degrees Fahrenheit |
| Input ranges | ||
| ·
● Voltage · |
No | No |
| ·
● Current · |
No | No |
| ·
● Thermocouple · |
No | No |
| ·
● Resistance thermometer · |
Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 | Yes; Resistance-type transmitter: Pt10, Pt50, Pt100, Pt200, Pt500, Pt1000, Ni100, Ni120, Ni200, Ni500, Ni1000, Cu10, Cu50, Cu100, LG-Ni1000 |
| ·
● Resistance · |
Yes; 150 Ω, 300 Ω, 600 Ω | Yes; 150 Ω, 300 Ω, 600 Ω |
| Input ranges (rated values), resistance thermometer | ||
| ·
● Cu 10 · |
Yes | Yes |
| ·
● Pt 100 · |
Yes | Yes |
| ·
— Input resistance (Pt 100) · |
100 Ω | 100 Ω |
| ·
● Pt 1000 · |
Yes | Yes |
| ·
— Input resistance (Pt 1000) · |
1 000 Ω | 1 000 Ω |
| ·
● Pt 200 · |
Yes | Yes |
| ·
— Input resistance (Pt 200) · |
200 Ω | 200 Ω |
| ·
● Pt 500 · |
Yes | Yes |
| ·
— Input resistance (Pt 500) · |
500 Ω | 500 Ω |
| Weights | ||
| Weight, approx. | 220 g | 220 g |
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