PL420 - PLC with 4DI, 4DO, 2RTD, 2AI, 1AO and RS232/485 communications

The PL420 PLC has been developed as a compact controller with a versatile combination of Analog and Digital I/O. The fact that the controller is programmable enables the user to program their own unique logic requirements and not be restricted by a pre-programmed unit or hardwired relays and timers.

The PL420 PLC is programmed in ladder logic. Procon’s ProSoft windows-based PC software is used to generate the ladder diagram, compile the program, and then download the program to the PL420 via the programming port on the front of the unit.

The PL420 module is a multipurpose combination of inputs and outputs. The module can accommodate either 2 or 3 wire RTD sensors, current (0-20mA) and voltage (0-10V) inputs, current (0-20mA) or voltage (0-10V) output, and digital inputs and outputs.

The RS485 communications port can be configured as a Modbus master or Modbus slave.