Siemens PLC Control

S7200 PLC

  CPU221, CPU222, CPU224, CPU226
  DISPLAY PANELS TD100C, TD200, TD200C, TD400C, OP73 MICRO, TP177 MICRO, TP70, TP170

S7300 PLC

  CPU312, CPU313, CPU314, CPU315, CPU317
  DIGITAL IO : SM321, SM332, SM323
  ANALOG IO : SM331, SM332, SM334

S7400 PLC

  CPUs & Ios