Programmable Logic Controller Guide: Selection, Application, and Maintenance for Engineers
PLC selection guide for engineers covering IEC 61131 compliance, Siemens, Rockwell, Schneider, ABB comparison, scan time sizing, and wiring. Shop at Stoklink.
- Part number
- 6ES7234-4HE32-0XB0
- Model no
- SM 1234, AI 4x13 bit/AQ 2x14 bit
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· From Türkiye
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SIMATIC S7-1200Siemens 6ES7234-4HE32-0XB0 SIMATIC S7-1200 SM 1234 4AI/2AO Analog I/O Module
SIMATIC S7-1200 SM 1234 analog I/O, 4 inputs + 2 outputs, 13/14-bit resolution.
Description
About the SM 1234, AI 4x13 bit/AQ 2x14 bit
About the SM 1234, AI 4x13 bit/AQ 2x14 bit
The Siemens 6ES7234-4HE32-0XB0 is a SIMATIC S7-1200 SM 1234 combined analog I/O module with 4 inputs at 12-bit + sign (13-bit ADC) and 2 outputs at 14-bit (voltage) or 13-bit (current) resolution. Inputs accept +/-10 V, +/-5 V, +/-2.5 V, or 0/4-20 mA; outputs deliver +/-10 V or 0/4-20 mA.
Certifications & Standards
- CE mark
- CSA approval
- UL approval
- cULus
- FM approval
- RCM
- KC approval
- Marine approval
Selection Notes
Combining 4 inputs and 2 outputs on one module saves a slot compared to separate SM 1231/SM 1232 modules when a station needs both -- the trade-off is losing that flexibility if the input or output channel count doesn't match the fixed 4/2 split. The 100 m shielded cable length reflects the S7-1200's local-I/O design; for field devices further away, route through a distributed ET 200SP or ET 200MP station instead. Output resolution differs by type -- 14-bit for voltage, 13-bit for current -- which matters when specifying the closed-loop control precision an application needs from this module's analog outputs.
Applications
Mixed analog measurement and control on compact SIMATIC S7-1200 machines, combining temperature or pressure sensing with a proportional valve or VFD speed reference output from a single module.
Specification
Full specification
General information 1
| Product type designation | SM 1234, AI 4x13 bit/AQ 2x14 bit |
|---|
Supply voltage 1
| Rated value (DC) | 24 V |
|---|
Input current 2
| Current consumption, typ. | 60 mA |
|---|---|
| from backplane bus 5 V DC, typ. | 80 mA |
Show all 101 specifications ↓ Show less ↑97 more values in Identification, Power loss, Analog inputs, Analog outputs, Analog value generation for the inputs, Analog value generation for the outputs, Errors/accuracies, Interrupts/diagnostics/status information, Potential separation, Degree and class of protection, Standards, approvals, certificates, Ambient conditions, Connection method, Mechanics/material, Dimensions, Weights, Logistics.
Identification 10
| Part number | 6ES7234-4HE32-0XB0 |
|---|---|
| Type designation | SM 1234, AI 4x13 bit/AQ 2x14 bit |
| Brand | Siemens |
| Condition | New, factory sealed |
| Source | Siemens and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 6940408102071 |
| ETIM class | EC001420 |
| eCl@ss | 27242201 |
Power loss 1
| Power loss, typ. | 2 W |
|---|
Analog inputs 15
| Number of analog inputs | 4; Current or voltage differential inputs |
|---|---|
| permissible input voltage for voltage input (destruction limit), max. | 35 V |
| permissible input current for current input (destruction limit), max. | 40 mA |
| Cycle time (all channels) max. | 625 µs |
| Input ranges: Voltage | Yes; ±10V, ±5V, ±2.5V |
| Input ranges: Current | Yes; 4 to 20 mA, 0 to 20 mA |
| Input ranges (rated values), voltages: -10 V to +10 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-10 V to +10 V) | ≥9 MOhm |
| Input ranges (rated values), voltages: -2.5 V to +2.5 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-2.5 V to +2.5 V) | ≥9 MOhm |
| Input ranges (rated values), voltages: -5 V to +5 V | Yes |
| Input ranges (rated values), voltages: Input resistance (-5 V to +5 V) | ≥9 MOhm |
| Input ranges (rated values), currents: 0 to 20 mA | Yes |
| Input ranges (rated values), currents: Input resistance (0 to 20 mA) | 280 Ω |
| Input ranges (rated values), currents: 4 mA to 20 mA | Yes |
Analog outputs 7
| Number of analog outputs | 2; Current or voltage |
|---|---|
| Output ranges, voltage: -10 V to +10 V | Yes |
| Output ranges, current: 0 to 20 mA | Yes |
| Output ranges, current: 4 mA to 20 mA | Yes |
| Load impedance (in rated range of output): with voltage outputs, min. | 1 000 Ω |
| Load impedance (in rated range of output): with current outputs, max. | 600 Ω |
| Cable length: shielded, max. | 100 m; shielded, twisted pair |
Analog value generation for the inputs 9
| Measurement principle | Differential |
|---|---|
| Integration and conversion time/resolution per channel: Resolution with overrange (bit including sign), max. | 12 bit; + sign |
| Integration and conversion time/resolution per channel: Integration time, parameterizable | Yes |
| Integration and conversion time/resolution per channel: 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 |
| Smoothing of measured values: Step: None | Yes |
| Smoothing of measured values: Step: low | Yes |
| Smoothing of measured values: Step: Medium | Yes |
| Smoothing of measured values: Step: High | Yes |
Analog value generation for the outputs 1
| Integration and conversion time/resolution per channel: Resolution with overrange (bit including sign), max. | 14 bit; Voltage: 14 bit; Current : 13 bit |
|---|
Errors/accuracies 5
| 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 range, (+/-) | 0.1 % |
| Basic error limit (operational limit at 25 °C): Current, relative to input range, (+/-) | 0.1 % |
| Interference voltage suppression for f = n x (f1 +/- 1 %), f1 = interference frequency: Common mode voltage, max. | 12 V |
Interrupts/diagnostics/status information 9
| Alarms | Yes |
|---|---|
| Diagnostics function | Yes |
| Alarms: Diagnostic alarm | Yes |
| Diagnoses: Monitoring the supply voltage | Yes |
| Diagnoses: Wire break | Yes |
| Diagnoses: Short-circuit | Yes |
| Diagnostics indication LED: for status of the inputs | Yes |
| Diagnostics indication LED: for status of the outputs | Yes |
| Diagnostics indication LED: for maintenance | Yes |
Potential separation 1
| Potential separation analog outputs: between the channels and the power supply of the electronics | No |
|---|
Degree and class of protection 1
| IP degree of protection | IP20 |
|---|
Standards, approvals, certificates 13
| 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 |
| Ecological footprint: environmental product declaration Global warming potential | Yes |
| Ecological footprint: global warming potential, (total) [CO2 eq] | 43.1 kg |
| Ecological footprint: global warming potential, (during production) [CO2 eq] | 7.62 kg |
| Ecological footprint: global warming potential, (during operation) [CO2 eq] | 36 kg |
| Ecological footprint: global warming potential, (after end of life cycle) [CO2 eq] | -0.544 kg |
Ambient conditions 13
| Free fall: Fall height, max. | 0.3 m; five times, in product package |
|---|---|
| Ambient temperature during operation: min. | -20 °C |
| Ambient temperature during operation: max. | 60 °C |
| Ambient temperature during operation: horizontal installation, min. | -20 °C |
| Ambient temperature during operation: vertical installation, min. | -20 °C |
| Ambient temperature during storage/transportation: min. | -40 °C |
| Ambient temperature during storage/transportation: max. | 70 °C |
| Air pressure acc. to IEC 60068-2-13: Operation, min. | 795 hPa |
| Air pressure acc. to IEC 60068-2-13: Operation, max. | 1 080 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, min. | 660 hPa |
| Air pressure acc. to IEC 60068-2-13: Storage/transport, max. | 1 080 hPa |
| Relative humidity: Operation at 25 ℃ without condensation, max. | 95 % |
| Pollutant concentrations: SO2 at RH < 60% without condensation | S02: < 0.5 ppm; H2S: < 0.1 ppm; RH < 60 % condensation-free |
Connection method 1
| required front connector | Yes |
|---|
Mechanics/material 1
| Enclosure material (front): plastic | Yes |
|---|
Dimensions 3
| Width | 45 mm |
|---|---|
| Height | 100 mm |
| Depth | 75 mm |
Weights 1
| Weight, approx. | 220 g |
|---|
Logistics 6
| Net weight | 0.179 kg |
|---|---|
| Country of origin | CN |
| Shipping weight | 0.679 kg |
| Ships from | Türkiye |
| Dispatch | 12 Nov |
| Stock | In stock |
Source: manufacturer data · Last verified: 01 Nov 2026
Documents
Documents for 6ES7234-4HE32-0XB0
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Ask us for the datasheet
Certifications
Certifications and standards
- CE mark
- CSA approval
- UL approval
- cULus
- FM approval
- RCM (formerly C-TICK)
- KC approval
- Marine approval
Quick answers
Questions about the SM 1234, AI 4x13 bit/AQ 2x14 bit
Which supply voltage is SM 1234, AI 4x13 bit/AQ 2x14 bit rated for?
The rated operational voltage of SM 1234, AI 4x13 bit/AQ 2x14 bit is 24 V AC.
What is the HS code of SM 1234, AI 4x13 bit/AQ 2x14 bit for customs?
The tariff (HS) code on file for SM 1234, AI 4x13 bit/AQ 2x14 bit is 85389091.
What is the EAN of SM 1234, AI 4x13 bit/AQ 2x14 bit?
The EAN (GTIN) of SM 1234, AI 4x13 bit/AQ 2x14 bit is 6940408102071.
Where does SM 1234, AI 4x13 bit/AQ 2x14 bit ship from, and how fast?
SM 1234, AI 4x13 bit/AQ 2x14 bit ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival. Stock items are dispatched within 1–2 business days.
Guides
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Reviews
Customer reviews
Series
Siemens SIMATIC S7-1200
- Brand
- Siemens
- Series
- SIMATIC S7-1200
