You searched for "parallel interface"
ABB
ABB R600 Series Interface Relay, DIN Rail Mount, 230V ac/dc Coil, SPDT, 6A Load
Part: 1SNA645008R1200 RB121G-230VUC
ABB 230V interface relay for industrial control systems with 6A switching capacity.
Sensata / Crydom
Sensata / Crydom DRA4 CX Series Solid State Interface Relay, 32 V dc Control, 5 A rms Load, DIN Rail Mount
Part: DRA4-CXE240D5
Compact industrial relay for switching AC circuits up to 280V, mounted on standard DIN rail.
Siemens
Siemens SITRANS PROBE LU Series Ultrasonic transmitter Probe Level Transmitter, Threaded, PBT
Part: 7ML5221-1BB21
Ultrasonic level transmitter with PROFIBUS interface for continuous measurement.
Siemens
Siemens SITRANS PROBE LU Series Ultrasonic transmitter SITRANS Probe LU Level Transmitter, Threaded, PBT
Part: 7ML5221-1DB21
Ultrasonic level transmitter with PROFIBUS interface for non-contact liquid and solid level measurement.