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Siemens Signal Board SB 1231, 1 AI - 6ES7231-4HA30-0XB0
SIMATIC S7-1200, Analog input, SB 1231, 1 AI, +/-10 V DC (12 bit resol.) or 0-20 mA...
Price on request
SIMATIC S7-1200, Analog input, SB 1231, 1 AI, +/-10 V DC (12 bit resol.) or 0-20 mA
General information | |
Product type designation | SB 1231, AI 1x12 bit |
Supply voltage | |
Rated value (DC) | 24 V |
Input current | |
from backplane bus 5 V DC, typ. | 55 mA |
Power loss | |
Power loss, typ. | 0.4 W |
Analog inputs | |
Number of analog inputs | 1; Current or voltage differential inputs |
permissible input voltage for current input (destruction limit), max. | ±35 V |
permissible input voltage for voltage input (destruction limit), max. | 35 V |
permissible input current for voltage input (destruction limit), max. | 40 mA |
permissible input current for current input (destruction limit), max. | 40 mA |
Cycle time (all channels) max. | 156.25 µs; 400 Hz suppression |
Input ranges | |
● Voltage | Yes; ±10V, ±5V, ±2.5V |
● Current | Yes; 0 to 20 mA |
● Thermocouple | No |
● Resistance thermometer | No |
● Resistance | No |
Input ranges (rated values), voltages | |
● -10 V to +10 V | Yes |
— Input resistance (-10 V to +10 V) | ≥9 MOhm |
● -2.5 V to +2.5 V | Yes |
— Input resistance (-2.5 V to +2.5 V) | ≥9 MOhm |
● -5 V to +5 V | Yes |
— Input resistance (-5 V to +5 V) | ≥9 MOhm |
Input ranges (rated values), currents | |
● 0 to 20 mA | Yes |
— Input resistance (0 to 20 mA) | ≥ 250 Ohm |
Analog outputs | |
Number of analog outputs | 0 |
Cable length | |
● shielded, max. | 100 m; shielded, twisted pair |
Analog value generation for the inputs | |
Measurement principle | integrating |
Integration and conversion time/resolution per channel | |
● Resolution with overrange (bit including sign), max. | 11 bit; + sign |
● Integration time, parameterizable | Yes |
● Interference voltage suppression for interference frequency f1 in Hz | 40 dB, DC to 60 Hz |
Smoothing of measured values | |
● parameterizable | Yes |
● Step: None | Yes |
● Step: low | Yes |
● Step: Medium | Yes |
● Step: High | Yes |
Errors/accuracies | |
Temperature error (relative to input range), (+/-) | 25 °C ±0.3%, to 55 °C ±0.6% total measurement range |
Interrupts/diagnostics/status information | |
Alarms | Yes |
Diagnostics function | Yes |
Alarms | |
● Diagnostic alarm | Yes |
Diagnoses | |
● Wire-break | No |
Diagnostics indication LED | |
● for status of the inputs | Yes |
● for maintenance | Yes |
Standards, approvals, certificates | |
CE mark | Yes |
CSA approval | Yes |
UL approval | Yes |
cULus | Yes |
FM approval | Yes |
RCM (formerly C-TICK) | Yes |
KC approval | Yes |
Marine approval | Yes |
Ambient conditions | |
Free fall | |
● Fall height, max. | 0.3 m; five times, in product package |
Ambient temperature during operation | |
● min. | -20 °C |
● max. | 60 °C |
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