Mounting Type | Rack Mount |
Application | Expaansion |
Warranty | 1 year |
Manufacturer Series | S7 ET 200 CPU |
Brand | Siemens |
Siemens S7-1200 Expansion Modules are designed to enhance the functionality of the S7-1200 PLC by adding extra inputs, outputs, analog processing, communication interfaces, and specialized functions. These modules increase system flexibility, making the S7-1200 suitable for a variety of industrial automation applications.
1. Digital Input/Output Expansion Modules
Expand digital signal processing capabilities with these modules.
Model | Description | I/O Type |
---|---|---|
SM 1221 | Digital Input Module | 8/16/32 DI |
SM 1222 | Digital Output Module | 8/16/32 DO (Relay or Transistor) |
SM 1223 | Digital Mixed Module | 8DI/8DO, 16DI/16DO (Relay/Transistor) |
Used for precise signal processing in automation systems.
Model | Description | Channels |
---|---|---|
SM 1231 | Analog Input Module | 2/4 AI (Voltage/Current) |
SM 1232 | Analog Output Module | 2 AO (Voltage/Current) |
SM 1234 | Analog Mixed Module | 4 AI / 2 AO |
3. Communication Modules
Enable connectivity with industrial networks and field devices.
Model | Description | Supported Protocols |
---|---|---|
CM 1241 | RS232/RS485 Communication Module | Modbus RTU, ASCII |
CM 1242-5 | PROFIBUS DP Slave | PROFIBUS |
CM 1243-5 | PROFIBUS DP Master | PROFIBUS |
CP 1243-1 | Industrial Ethernet Communication | PROFINET, Modbus TCP |
Enhance the functionality of the PLC for specific applications.
Model | Description |
---|---|
SM 1238 Energy Meter | Monitors power consumption (up to 480V AC) |
SM 1281 Positioning Module | Supports servo and stepper motor control |
SM 1278 IO-Link Master | Enables IO-Link device communication |
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