Example for the connection of a Pt100 RTD multiplexer to a PLC: (for more information see PT100MUX8)
Pt100 or Pt1000 RTD multiplexer for 8 sensors (2/3/4-wire) on one standard PLC analog input in new aluminium housing. 4..20mA current loop output. Easy 2-wire remote supply (24V) from PLC.
RTD sensor conditioning module for four Pt100 temperature sensors. Output voltage 0..5V (others optional). Parallel unmultiplexed action.
50Hz/°C frequency output for one Pt100 RTD sensor. For your PLC's counter input