| SIMATIC S7-300, Analog input SM 331, single channel Isolated 250 V AC, 6 AI thermocouples Type B, E, J, K, L, N, R, S, T Voltage: +/-25MV to +/-1V 16 bit, 50ms, 1x 40-pole |
Supply voltage |
Load voltage L+ |
● Rated value (DC) | 24 V |
● Reverse polarity protection | Yes |
Input current |
from load voltage L+ (without load), max. | 150 mA |
from backplane bus 5 V DC, max. | 100 mA |
Power loss |
Power loss, typ. | 2.2 W |
Analog inputs |
Number of analog inputs | 6 |
permissible input voltage for voltage input (destruction limit), max. | 35 V; 35 V continuous, 75 V for max. 1 s (mark to space ratio 1:20) |
Input ranges |
● Voltage | Yes |
● Current | No |
● Thermocouple | Yes |
● Resistance thermometer | No |
● Resistance | No |
Input ranges (rated values), voltages |
● 0 to +10 V | No |
● 1 V to 5 V | No |
● 1 V to 10 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 |
● -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 |
● -10 mA to +10 mA | No |
● -20 mA to +20 mA | No |
● -3.2 mA to +3.2 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 | Yes |
— Input resistance (Type L) | 10 MΩ |
● 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 U | Yes |
— Input resistance (Type U) | 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 | No |
● Ni 100 | No |
● Ni 1000 | No |
● LG-Ni 1000 | No |
● Ni 120 | No |
● Ni 200 | No |
● Ni 500 | No |
● Pt 100 | No |
● Pt 1000 | No |
● Pt 200 | No |
● Pt 500 | No |
Input ranges (rated values), resistors |
● 0 to 150 ohms | No |
● 0 to 300 ohms | No |
● 0 to 600 ohms | No |
● 0 to 6000 ohms | No |
Thermocouple (TC) |
Temperature compensation |
— parameterizable | Yes |
— internal temperature compensation | Yes |
— external temperature compensation with Pt100 | Yes |
— external temperature compensation with compensations socket | Yes |
— for definable comparison point temperature | Yes |
Characteristic linearization |
● parameterizable | Yes |
Cable length |
● shielded, max. | 200 m |
Analog value generation for the inputs |
Integration and conversion time/resolution per channel |
● Resolution with overrange (bit including sign), max. | 16 bit; Two’s complement |
● Integration time, parameterizable | Yes |
● Basic conversion time (ms) | 30 / 50 / 60 / 300 ms |
● Integration time (ms) | 10/ 16.67/ 20/ 100 ms |
● Interference voltage suppression for interference frequency f1 in Hz | 10 / 50 / 60 / 400 Hz |
Encoder |
Connection of signal encoders |
● for voltage measurement | Yes |
Errors/accuracies |
Operational error limit in overall temperature range |
● Voltage, relative to input range, (+/-) | Operating error at 0 … 60 °C: ±0.12% @ ±25 mV, ±0.08% @ ±50 mV, ±0.6% @ ±80 mV, ±0.05% @ ±250 mV, ±0.05% @ 500 mV, ±0.05% @ ±1 V |
● Thermocouple, relative to input range, (+/-) | See manual for details |
Basic error limit (operational limit at 25 °C) |
● Voltage, relative to input range, (+/-) | See manual for details |
● Thermocouple, relative to input range, (+/-) | See manual for details |
Interrupts/diagnostics/status information |
Diagnostics function | Yes; Parameterizable |
Alarms |
● Diagnostic alarm | Yes; channel by channel |
● Limit value alarm | Yes; Parameterizable |
● Hardware interrupt | Yes; Parameterizable |
Diagnostic messages |
● Diagnostic information readable | Yes |
Diagnostics indication LED |
● Group error SF (red) | Yes |
Potential separation |
Potential separation analog inputs |
● 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 |
Isolation |
Isolation tested with | 2 500 V DC |
Connection method |
required front connector | 40-pin |
Dimensions |
Width | 40 mm |
Height | 125 mm |
Depth | 120 mm |
Weights |
Weight, approx. | 272 g |
|
Đánh giá
Chưa có đánh giá nào.