Data Sheets
52
Proximity switch without attenuation, high current to the amplifier
Proximity switch with attenuation, low current to the amplifier
Input filter, testable
Control block for registers
Multiplexer
I/O bus
Indicator light (LED), off
no. of the channel
Indicator light (LED), on (in function tables)
Current source
Sensor with resistor as near as possible at the contact
Diode
Light-emitting diode (LED)
Relay with reverse current diode
Resistance thermometer Pt 100
Fuse
Power source