It is an electronic module used for digital input processing in automation systems.
Here are some key specifications of the 6ES7142-4BF00-0AA0 module:
Number of digital inputs: 16
Input type: Digital, compatible with NPN and PNP sensors
Input voltage: 24 V DC
Input current: 3.2 mA
Input delay time (on/off): Typically 0.05 ms / 0.2 ms
Connection type: Removable terminal blocks
Mounting: On a mounting rail
Dimensions (W x H x D): 15 x 117 x 71 mm
Weight: Approx. 120 g
Siemens Plc module
6ES7412-1XJ07-0AB0
6ES7412-5HK06-0AB0
6ES7412-2EK07-0AB0
6ES7414-2XK05-0AB0
6ES7414-2XL07-0AB0
6ES7414-3XM05-0AB0
6ES7414-5HM06-0AB0
6ES7414-3EM07-0AB0
6ES7414-3FM07-0AB0