6ES7231-7PC22-0XA0
SIMATIC S7-200, Analog input EM 231, only for S7-22X CPU, 4 AI, Pt100/200/500/1000/10000, NI100/120/1000, CU10, 14 GOST, Resistance 150/300/600 ohm, 15 bit+sign
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Input current | |
from load voltage L+ (without load), max. | 60 mA |
from backplane bus 5 V DC, max. | 87 mA |
Power loss | |
Power loss, typ. | 1.8 W; Sensor: 1 mW |
Analog inputs | |
Number of analog inputs | 4 |
permissible input voltage for voltage input (destruction limit), max. | 30 V; 30 V DC (probe), 5 V DC (source) |
Loop resistance cable | 20 Ω; max. 2.7 Ohm for Cu |
Updating time (all channels) | 810 ms; 1 400 ms with Pt10000 |
Input ranges | |
● Voltage | No |
● Current | No |
● Thermocouple | No |
● Resistance thermometer | Yes |
● Resistance | Yes |
Input ranges (rated values), resistance thermometer | |
● Cu 10 | Yes |
● Input resistance (Cu 10) | 10 MΩ |
● Ni 10 | Yes |
● Input resistance (Ni 10) | 10 MΩ |
● Ni 1000 | Yes |
● Input resistance (Ni 1000) | 10 MΩ |
● Ni 120 | Yes |
● Input resistance (Ni 120) | 10 MΩ |
● Pt 100 | Yes |
● Input resistance (Pt 100) | 10 MΩ |
● Pt 1000 | Yes |
● Input resistance (Pt 1000) | 10 MΩ |
● Pt 10000 | Yes |
● Input resistance (Pt 10000) | 10 MΩ |
● Pt 200 | Yes |
● Input resistance (Pt 200) | 10 MΩ |
● Pt 500 | Yes |
● Input resistance (Pt 500) | 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 |
Cable length | |
● shielded, max. | 100 m; to the sensor |
Analog value generation for the inputs | |
Measurement principle | Sigma Delta |
Integration and conversion time/resolution per channel | |
● Resolution with overrange (bit including sign), max. | 16 bit; Temperature 0.1 °C / 0.1 °F |
● Interference voltage suppression for interference frequency f1 in Hz | 85 dB at 50 / 60 / 400 Hz |
Displayable conversion value range | |
● bipolar signals | -27.648 to +27.648 |
Errors/accuracies | |
Repeat accuracy in steady state at 25 °C (relative to input range), (+/-) | 0.05 % |
Operational error limit in overall temperature range | |
● Voltage, relative to input range, (+/-) | 0.1 % |
Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency | |
● Common mode voltage, max. | 0 V |
● Common mode interference, min. | 120 dB; At 120 V DC |
Interrupts/diagnostics/status information | |
Diagnostics indication LED | |
● external fault EXTF (red) | Yes |
● Group error SF (red) | Yes |
Potential separation | |
Potential separation analog inputs | |
● Potential separation analog inputs | Yes |
Permissible potential difference | |
Between the inputs and MANA (UCM) | 500 V AC |
between M internally and the inputs | 500 V AC |
Connection method | |
Plug-in I/O terminals | No |
Dimensions | |
Width | 71.2 mm |
Height | 80 mm |
Depth | 62 mm |
Weights | |
Weight, approx. | 210 g |
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