The Siemens S7 1200 4AI2AO Expansion Module is designed for industrial automation applications. With a frequency of 50/60 Hertz (HZ), this rack mount module in standard size and grey color offers efficient performance. It has an IP rating of IP20, ensuring protection in various industrial environments.

Data Sheet: 6ES7234-4HE32-0XB0

Product: SIMATIC S7-1200, Analog I/O SM 1234 4 AI / 2 AO

General Information

• Product Type: SM 1234, AI 4x13 bit / AQ 2x14 bit

• Supply Voltage: 24 V DC

• Input Current: 60 mA (typical), from backplane bus 5 V DC: 80 mA (typical)

• Power Loss: 2 W (typical)

• IP Degree of Protection: IP20

• Front Connector: Required

Analog Inputs (AI)

• Number of Inputs: 4 (current or voltage, differential)

• Input Voltage Limits: Max. 35 V

• Input Current Limits: Max. 40 mA

• Cycle Time (all channels): Max. 625 s

• Voltage Input Ranges: 10 V, 5 V, 2.5 V (Input resistance 9 M)

• Current Input Ranges: 020 mA, 420 mA (Input resistance 280 )

• Measurement Principle: Differential

• Integration & Conversion: Parameterizable, max. 12-bit resolution including sign

• Interference Suppression: 40 dB (DC to 60 V, 50/60 Hz)

• Smoothing Options: None / Low / Medium / High

Analog Outputs (AO)

• Number of Outputs: 2 (current or voltage)

• Voltage Output Range: 10 V (min. load 1 k)

• Current Output Range: 020 mA, 420 mA (max. load 600 )

• Resolution: Voltage 14-bit, Current 13-bit

Accuracy / Errors

• Temperature Error (Inputs): 0.1% at 25 C, 0.2% at 55 C

• Temperature Error (Outputs): 0.3% at 25 C, 0.6% at 55 C

• Basic Error Limit: 0.1% (voltage/current input), 0.3% (voltage/current output)

• Interference Voltage (Common Mode): Max. 12 V

Diagnostics & Status

• Alarms: Yes

• Diagnostics Functions: Supply voltage monitoring, wire-break, short-circuit

• LED Indicators: Input status, output status, maintenance

Potential Separation

• Analog Outputs: No separation between channels and electronics power supply

Environmental / Ambient Conditions

• Operating Temperature: -20 C to 60 C (horizontal), -20 C to 50 C (vertical)

• Storage/Transport Temperature: -40 C to 70 C

• Air Pressure: 7951080 hPa (operation), 6601080 hPa (storage/transport)

• Relative Humidity: Max. 95% (25 C, without condensation)

• Pollutant Concentrations: SO < 0.5 ppm, HS < 0.1 ppm, RH < 60%

Mechanical Data

• Dimensions: W 45 mm H 100 mm D 75 mm

• Weight: Approx. 220 g

• Enclosure Material: Plastic

• Free Fall Protection: 0.3 m, five times, in packaging 

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