The 6ES7235-0KD22-0XA0 is a high-performance Siemens SIMATIC S7-200 EM 235 analog I/O module, specifically designed to expand the analog capabilities of S7-22X CPUs. This field-proven unit delivers four multiplexed analog input channels and one dedicated analog output channel, all with 12-bit resolution and software-selectable ranges. Its robust galvanic isolation and industrial-grade construction make it ideal for sensor signal acquisition, actuator control, and closed-loop regulation in manufacturing, water treatment, and building automation. The module integrates seamlessly via the S7-200 backplane, eliminating the need for external power supplies or complex wiring. With its DIP-switch configurable input ranges (e.g., 0-10V, 0-20mA, ±10V, ±5V, ±2.5V, ±1.25V) and output range (0-20mA or 0-10V), the EM 235 provides maximum adaptability for diverse analog applications. Below is the detailed technical specification table:
| Parameter |
Specification |
| Product Type |
Analog I/O Expansion Module (EM 235) |
| Order Number |
6ES7235-0KD22-0XA0 |
| Compatible CPU |
S7-22X (e.g., CPU 222, CPU 224, CPU 226) |
| Analog Inputs |
4 channels (single-ended, multiplexed) |
| Input Ranges (Voltage) |
0-10V, 0-5V, ±10V, ±5V, ±2.5V, ±1.25V (DIP switch selectable) |
| Input Ranges (Current) |
0-20mA (via external 250-ohm resistor, DIP switch selectable) |
| Input Resolution |
12 bits (0-4095 digital counts) |
| Input Impedance |
≥ 100 kΩ (voltage mode), 250 Ω (current mode with resistor) |
| Analog Outputs |
1 channel (single-ended) |
| Output Ranges |
0-20mA or 0-10V (DIP switch selectable) |
| Output Resolution |
12 bits (0-4095 digital counts) |
| Output Load |
0-500 Ω (current mode), ≥ 5 kΩ (voltage mode) |
| Accuracy (25°C) |
±0.5% of full scale (typical) |
| Isolation (Input/Output to Bus) |
500 VAC (1 minute) |
| Update Rate |
25 ms per channel (all inputs) |
| Power Consumption (5V DC from Backplane) |
30 mA (typical) |
| Power Consumption (24V DC from Backplane) |
60 mA (typical, for sensor supply) |
| Operating Temperature |
0°C to 55°C (horizontal mounting), 0°C to 45°C (vertical mounting) |
| Storage Temperature |
-40°C to 70°C |
| Relative Humidity |
5% to 95% (non-condensing) |
| Dimensions (W x H x D) |
71.2 mm x 80 mm x 62 mm |
| Weight |
Approx. 160 g |
| Configuration |
DIP switches on module (SW1-SW6 for input range, SW7-SW8 for output range) |
| Compliance |
CE, UL, cULus, FM Class I Div 2 |
What Does Our Clients Say
Mitsubishi MR-J4
Laura Navas
Great product!
2019/12/01
Keyence sensor
EQDR SALES
Original and fast!
2020/02/22