PFSK160A output relay module is an important part of the automation control system and is mainly used to realize the conversion and control of electrical signals. This module contains actual physical relays, and controls external devices by controlling the relay's on and off. Relay output modules usually have multiple relay output channels, and each channel can be controlled independently. Each relay output channel can be configured as normally open or normally closed to meet different control needs. In addition, the output relay module also supports a variety of communication methods, such as RS485 bus communication, allowing it to easily connect and exchange data with other devices. In terms of performance characteristics, PFSK160A output relay modules usually have the ability to supply power in a wide voltage range and can adapt to different working environments. At the same time, the module also provides debugging functions such as stop bits, addresses, baud rates, and check bits, allowing users to flexibly configure according to actual needs. The output relay module has a wide range of applications and is especially suitable for multi-purpose control systems in industrial sites. It can convert the signal output by the control system into relay action, thereby controlling the on-off or status switching of external equipment.