| Article number | 6ES7231-5QD32-0XB0 | 6ES7231-5QF32-0XB0 |
| S7-1200, analog Input SM 1231 TC, 4 AI | S7-1200, analog Input SM 1231 TC, 8 AI | |
| General information | ||
| Product type designation | SM 1231, AI 4×16 bit TC | SM 1231, AI 8×16 bit TC |
| 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; Thermocouples | 8; Thermocouples |
| 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 · |
Yes | Yes |
| ·
● Current · |
No | No |
| ·
● Thermocouple · |
Yes; J, K, T, E, R, S, N, C, TXK/XK(L); voltage range: ±80 mV | Yes; J, K, T, E, R & S, B, N, C, TXK/XK(L); voltage range: ±80 mV |
| Dimensions | ||
| Width | 45 mm | 45 mm |
| Height | 100 mm | 100 mm |
| Depth | 75 mm | 75 mm |
| Weights | ||
| Weight, approx. | 180 g | 220 g |