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Combined Analog Input and Output for Compact Systems
The Siemens 6ES7235-0KD20-0XA0 EM 235 analog I/O module provides a cost-effective solution for S7-200 systems requiring both analog inputs and outputs. This expansion module features 4 analog input channels and 1 analog output channel in a single compact unit. The inputs accept voltage or current signals, while the output provides a 0-10V or 4-20mA signal. Each input offers 12-bit resolution with a 5 ms conversion time. The output delivers 12-bit resolution for precise control of actuators. Furthermore, the module includes built-in diagnostic features for reliable operation.
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | Analog I/O Expansion Module |
| Product Line | SIMATIC S7-200 |
| Analog Inputs | 4 channels |
| Input Resolution | 12 bits |
| Input Signal Types | 0-10V, 0-5V, 0-20mA, 4-20mA |
| Input Conversion Time | 5 ms (typical) |
| Analog Outputs | 1 channel |
| Output Resolution | 12 bits |
| Output Signal Types | 0-10V, 4-20mA |
| Power Supply | 24V DC |
| Power Consumption | 80 mA (from backplane) |
| Electrical Isolation | 500V between I/O and logic |
| Operating Temperature | 0°C to +55°C |
| Storage Temperature | -40°C to +85°C |
| Dimensions (W x H x D) | 46 x 80 x 62 mm |
| Weight | 0.2 kg |
| Mounting | DIN-rail or panel |
| Certifications | CE, UL, CSA |
| Product Origin | Germany |
Application and System Integration
Engineers commonly deploy the Siemens 6ES7235-0KD20-0XA0 in small-scale process control, HVAC, and machine monitoring applications. This module expands S7-200 systems with analog measurement and control capabilities. It provides a simple and cost-effective analog interface. The module supports configurations via STEP 7-Micro/WIN software. Consequently, machine builders achieve precise analog control without additional hardware complexity.