
SIMATIC S7-1200
Analog modules
SM 1234 analog input/output module
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Siemens ST 70 · 2011
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Overview
• Analog inputs and outputs for the SIMATIC S7-1200
• With extremely short conversion times
• For connecting analog actuators and sensors without
additional amplifiers
• For solving even more complex automation tasks
■
Technical specifications
6ES7 234-4HE30-0XB0
Product type designation SM 1234 A I4x13 bit AQ 2x14 bit
Supply voltages
Rated value
•24 V DC Yes
Current consumption
Current consumption, typ. 60 mA
from backplane bus 5 V DC, typ. 80 mA
Power losses
Power loss, typ. 2W
Connection method
Required front connector Yes
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 current for voltage
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)
250 Ohm
Voltage input
• Permissible input voltage for
voltage input (destruction limit),
max.
35 V
Current input
• Permissible input current for
current input (destruction limit),
max.
40 mA
Temperature compensation
• Temperature compensation
parameterizable
No
© Siemens AG 2011
© Siemens AG 2011
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