S7-200 PLC Digital Input/Output module EM231 EM232 EM235
S7-200 PLC Digital Input/Output module EM231 EM232 EM235. The SIEMENS SIMATIC S7-200 analog I/O Modules S7-200 PLC EM235 list and the alternative modules EM231, EM232 and EM235. EM232 Analog Module, AQ2x12bit, 232-0HB32.EM231 EM232 EM235
The Siemens S7-200 series PLC (Programmable Logic Controller) is known for its compact size and flexibility in automation applications. When it comes to digital input/output modules for the S7-200 PLC, several options exist, including the EM231, EM232, and EM235 modules:
- EM231: This is a digital input module. It provides 8 digital inputs, which are compatible with both 24V DC and 120V AC inputs, depending on the version. It’s commonly used for interfacing with switches, sensors, and other digital signals from the field devices.
- EM232: This module is a digital output module. It offers 8 digital outputs, suitable for controlling external devices such as relays, solenoids, or indicator lights. Like the EM231, it supports 24V DC and 120V AC outputs, depending on the specific version.
- EM235: This module is a combination module, offering 4 digital inputs and 4 digital outputs. It provides flexibility for applications where both input and output functions are required in one module. It also supports 24V DC and 120V AC inputs and outputs.
Key Features:
- Input Types: They typically support both sinking (PNP) and sourcing (NPN) inputs, depending on the wiring configuration.
- Output Types: Outputs are typically transistor or relay outputs, suitable for driving various loads.
- Voltage Compatibility: Versions are available for both 24V DC and 120V AC operation, providing flexibility in different industrial environments.
- Compatibility: Designed specifically for use with the Siemens S7-200 PLC series, ensuring seamless integration and reliable operation.
Applications to Industry:
- Digital Inputs (EM231): Used for detecting the state of switches, sensors, or other digital signals from devices.
- Digital Outputs (EM232): Used for controlling actuators, relays, or other devices that require digital control signals.
- Combined I/O (EM235): Suitable for applications where space is limited or where both input and output functions are needed in close proximity.
These modules are integral components in building automation solutions with the Siemens S7-200 PLC, providing essential digital interfacing capabilities for a wide range of industrial applications.
