„ Sinking/Sourcing Mode (NPN/PNP Selection) The input terminal logic can be switched over between sinking mode (0-V common, NPN) and sourcing mode (+24V common, PNP) by using the jumper CN5. An external power supply is also supported, providing more freedom in signal input methods. Table 3 Sinking / Sourcing Mode and Input Signals EN-11 Internal Power Source - Sinking Mode (NPN) External Power Source - Sinking Mode (NPN) External +24 V Internal Power Source - Sourcing Mode (PNP) External Power Source - Sourcing Mode (PNP) External +24 V