SIEMENS 6ES7221-1BH22-0XA8
The product name of the SIEMENS 6ES7221-1BH22-0XA8 module is “S7-200CN EM221 Digital Input Module” .
This module is a digital input module, used to convert the external digital signal level into S7-200 internal signal level, to realize the connection between PLC and digital process signal, for the CPU built-in I/O to provide more digital input. it has redundancy design, including power failure protection, fault diagnosis and information protection and recovery functions, especially suitable for industrial production process control.
The module has 16 digital input points, input voltage rating is 24V DC, power consumption typical value is 3W, current consumption is up to 70mA. It uses a plug-in I/O terminal connection, input characteristic curve according to IEC 1131
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