![](/storage/image/d/image/data/SIEMENS_Original/6ES7/234/6ES7234-4HE30-0XB0/6ES72344HE300XB0.jpg) |
SIMATIC S7-1200, ANALOG I/O SM 1234, 4 AI / 2 AO, /-10V, 14 BIT RESOLUTION, OR 0-20 MA, 13 BIT RESOLUTION, |
Supply voltage |
24 V DC |
Yes |
Input current |
Current consumption, typ. |
60 mA |
from backplane bus 5 V DC, typ. |
80 mA |
Power losses |
Power loss, typ. |
2 W |
Analog inputs |
Number of analog inputs |
4; Current or voltage differential inputs |
permissible input frequency 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. |
625 µs |
Input ranges |
● Voltage |
Yes; ±10 V, ±5 V, ±2.5 V |
● 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) |
280 Ω |
Thermocouple (TC) |
Temperature compensation |
— Parameterizable |
No |
Analog outputs |
Number of analog outputs |
2; Current or voltage |
Output ranges, voltage |
● -10 to 10 V |
Yes |
Output ranges, current |
● 0 to 20 mA |
Yes |
Load impedance (in rated range of output) |
● with voltage outputs, min. |
1 000 Ω |
● with current outputs, max. |
600 Ω |
Analog value creation |
Measurement principle |
Differential |
Integration and conversion time/resolution per channel |
● Resolution (incl. overrange) |
Voltage: 14 bits; Current : 13 bits |
● Integration time, parameterizable |
Yes |
● Interference voltage suppression for interference frequency f1 in Hz |
40 dB, DC to 60 V for interference frequency 50 / 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 ±0.1% to 55 °C ±0.2% total measurement range |
Temperature error (relative to output range), ( /-) |
25 °C ±0.3% to 55 °C ±0.6% total measurement range |
Basic error limit (operational limit at 25 °C) |
● Voltage, relative to input area, ( /-) |
0.1 % |
● Current, relative to input area, ( /-) |
0.1 % |
● Voltage, relative to output area, ( /-) |
0.3 % |
● Current, relative to output area, ( /-) |
0.3 % |
Interference voltage suppression for f = n x (f1 /- 1 %), f1 = interference frequency |
● common mode voltage, max. |
12 V |
Interrupts/diagnostics/status information |
Alarms |
● Alarms |
Yes |
● Diagnostic alarm |
Yes |
Diagnostic messages |
● Diagnostic functions |
Yes |
● Monitoring the supply voltage |
Yes |
● Wire break |
Yes |
● Short circuit |
Yes |
Diagnostics indication LED |
● for status of the inputs |
Yes |
● For status of the outputs |
Yes |
● for maintenance |
Yes |
Galvanic isolation |
Galvanic isolation analog outputs |
● between the channels and the power supply of the electronics |
No |
Degree and class of protection |
Degree of protection to EN 60529 |
|
● IP20 |
Yes |
Standards, approvals, certificates |
CE mark |
Yes |
RCM (formerly C-TICK) |
Yes |
FM approval |
Yes |
Climatic and mechanical conditions for storage and transport |
Climatic conditions for storage and transport |
Free fall |
— Drop height, max. (in packaging) |
0.3 m; five times, in dispatch package |
Temperature |
— Permissible temperature range |
-40 °C to 70 °C |
Air pressure acc. to IEC 60068-2-13 |
— Permissible air pressure |
1080 to 660 hPa |
Relative humidity |
— Permissible range (without condensation) at 25 °C |
95 % |
Mechanical and climatic conditions during operation |
Climatic conditions in operation |
Temperature |
— Permissible temperature range |
0 °C to 55 °C horizontal installation, 0 °C to 45 °C vertical installation |
Air pressure acc. to IEC 60068-2-13 |
— Permissible air pressure |
1080 to 795 hPa |
Pollutant concentrations |
— SO2 at RH < 60% without condensation |
S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60% condensation-free |
Connection method |
required front connector |
Yes |
Mechanics/material |
Type of housing (front) |
|
● plastic |
Yes |
Dimensions |
Width |
45 mm |
Height |
100 mm |
Depth |
75 mm |
Weights |
Weight, approx. |
220 g |
last modified: |
14.10.2014 |