| Product Type | S7-1200 Simulation Module |
| Product Model | 6ES7234-4HE32-0XB0 |
| power supply voltage | Rated value (DC) 24 V |
| Product Dimensions | 45 MM × 100 MM × 75 MM |
| Input current | Current consumption, typical value 60 mA Incoming backplane bus DC 5 V, typical value 80 mA |
| Weight | 220 g |
Analog Input/Output Hybrid Module for S7-1200 Series: Model SM 1234 AI4/AO2, designed for the SIMATIC S7-1200 PLC system, provides 4 analog inputs + 2 analog outputs, ideal for process automation applications requiring closed-loop control.
4-Channel Analog Inputs: Supports voltage (±10 V) and current (0/4–20 mA) input signals, compatible with sensors for pressure, temperature, flow, and other process variables—enabling high-precision data acquisition.
2-Channel Analog Outputs: Provides voltage (±10 V) and current (0/4–20 mA) output signals to drive control valves, frequency inverters, or actuators for accurate process regulation.
High Resolution & Accuracy: Features 13-bit + sign A/D and D/A conversion (effective resolution up to ~16 bits), ensuring precise and stable signal measurement and output.
Individually Configurable Channels: Each input and output channel can be independently configured for signal type and range, offering maximum flexibility for diverse field devices.
Advanced Diagnostics: Supports channel-level diagnostics for wire break, over-range, and short-circuit detection, with fault alarms via CPU or TIA Portal—improving system availability and maintenance speed.
Galvanic Isolation: Analog channels are electrically isolated from the backplane bus, reducing noise interference and enhancing system reliability in electrically noisy environments.
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