The Siemens 6ES7223-1PL32-0XB0 is a 16DI/16DO combination module for S7-1200 PLCs. It features 24V DC inputs and 2A relay outputs for versatile control.
The Siemens 6ES7223-1PL32-0XB0 is a high-density digital combination module for the SIMATIC S7-1200 PLC series. This expansion unit integrates 16 digital inputs and 16 digital outputs into one hardware frame. Consequently, it provides a cost-effective solution for applications requiring high I/O counts in limited spaces. The module connects directly to the right side of the S7-1200 CPU via the integrated backplane bus.
Engineers typically use this module to bridge field sensors with mechanical actuators. The robust design ensures reliable signal processing in harsh industrial environments. Furthermore, the unit supports flexible wiring configurations for both sinking and sourcing input circuits. This versatility makes it a staple component for modern factory automation and machine building projects.
| Feature | Detailed Specification |
| Brand | Siemens |
| Model Number | 6ES7223-1PL32-0XB0 |
| Module Type | Digital Input / Output (DI/DO) |
| Digital Inputs | 16 Channels (24V DC) |
| Digital Outputs | 16 Channels (Relay Type) |
| Output Current | 2.0 Amperes per point |
| Supply Voltage | 24V DC (20.4 to 28.8V DC) |
| Power Loss | 10.0 Watts (Typical) |
| Dimensions | 70 mm x 100 mm x 75 mm |
| Net Weight | 0.35 kg |
The module features 16 digital inputs rated at 24V DC. These inputs comply with IEC 61131 Type 1 standards for industrial sensors. Additionally, the hardware includes adjustable input filters to eliminate electrical noise. Users can select delay times between 0.2ms and 12.8ms through software configuration. This ensures that the PLC receives clean, bounce-free signals from mechanical switches.
The 16 relay outputs handle switching currents up to 2A per channel. This capacity allows the module to drive solenoids and small motors directly. Because relay contacts provide dry switching, they support various voltage levels for different loads. Furthermore, the relay design offers complete galvanic isolation between the PLC and the field equipment. This protection prevents voltage spikes from damaging the sensitive central processor.
The 6ES7223-1PL32-0XB0 consumes 180mA from the 5V DC backplane bus. This low power draw preserves the energy budget of the CPU power supply. Moreover, the module supports diagnostic alarms to simplify system maintenance. Status LEDs on the front panel provide instant visual confirmation of every I/O state. These indicators help technicians identify faulty sensors or broken wires without using a laptop.
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