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Siemens 6ES7221-1BH32-0XB0 SIMATIC S7-1200 SM 1221 Digital Input Module
The Siemens 6ES7221-1BH32-0XB0 is a SIMATIC S7-1200 SM 1221 digital input expansion module used to add additional field-input capacity to an S7-1200 PLC system. This version provides 16 digital inputs for 24 VDC control signals and is intended for reading discrete devices such as proximity sensors, limit switches, selector switches, pushbuttons, pressure switches, and other on/off field devices.
Key specifications: SIMATIC S7-1200 family; SM 1221 signal module; 16 digital inputs; 24 VDC input level; sink/source-capable input arrangement; modular side-mount expansion for compatible S7-1200 CPUs.
The 6ES7221-1BH32-0XB0 is commonly used in packaging machinery, small production cells, conveyor systems, process skids, material handling, machine tools, and OEM automation. It is useful when an existing S7-1200 controller has insufficient onboard input capacity or when replacing a failed SM 1221 module in an installed machine.
Compatibility note: Verify the complete Siemens article number before ordering. Confirm CPU compatibility, required digital-input type, field voltage, wiring configuration, available expansion positions, firmware level, and the hardware configuration used in TIA Portal. Similar SM 1221 modules can differ in channel count and electrical characteristics.
Corwin Solutions sources the Siemens 6ES7221-1BH32-0XB0 along with SIMATIC CPUs, I/O modules, HMI hardware, drives, power supplies, and discontinued Siemens automation components. Send the manufacturer part number and required quantity for a sourcing quote.
Siemens 6ES7221-1BH32-0XB0 SIMATIC S7-1200 SM 1221 Digital Input Module
The Siemens 6ES7221-1BH32-0XB0 is a SIMATIC S7-1200 SM 1221 digital input expansion module used to add additional field-input capacity to an S7-1200 PLC system. This version provides 16 digital inputs for 24 VDC control signals and is intended for reading discrete devices such as proximity sensors, limit switches, selector switches, pushbuttons, pressure switches, and other on/off field devices.
Key specifications: SIMATIC S7-1200 family; SM 1221 signal module; 16 digital inputs; 24 VDC input level; sink/source-capable input arrangement; modular side-mount expansion for compatible S7-1200 CPUs.
The 6ES7221-1BH32-0XB0 is commonly used in packaging machinery, small production cells, conveyor systems, process skids, material handling, machine tools, and OEM automation. It is useful when an existing S7-1200 controller has insufficient onboard input capacity or when replacing a failed SM 1221 module in an installed machine.
Compatibility note: Verify the complete Siemens article number before ordering. Confirm CPU compatibility, required digital-input type, field voltage, wiring configuration, available expansion positions, firmware level, and the hardware configuration used in TIA Portal. Similar SM 1221 modules can differ in channel count and electrical characteristics.
Corwin Solutions sources the Siemens 6ES7221-1BH32-0XB0 along with SIMATIC CPUs, I/O modules, HMI hardware, drives, power supplies, and discontinued Siemens automation components. Send the manufacturer part number and required quantity for a sourcing quote.