Siemens 6DR50 Series Operating Instructions Manual page 86

Connection
5.2 Electric
Connection diagram for article numbers 6DR52..-0E/D/F/G/K...
①
②
③
④
Figure 5-13
84
Non-hazardous area
Explosive atmosphere
Basic electronics
Binary input 1
Dotted connection lines: only for three-wire connection
Device version 2-/3-/4-wire, with connection type 3-/4-wire
⑤
HART communicator
⑥
Signal source
⑦
Power source
SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12