I/O Brick_Process-Control:
1x Current-Input, isol., 3-wire
1x Temperature, KTY2K, -10-50°C, 2-wire
1x Analog Output, 0-20mA, 2/3-wire
1x Analog Input, 20mA, 2/3-wire
1x Pulse-In-/Output, n/p-switch, 2/3-wire
can be used also as a Digital-Input