Siemens 6DR5 Serie Mode D'emploi page 20

Connection diagram for order numbers 6DR52..-0E/D/F/G/K...; 6DR53..-0E/D/F/G/K...
①
Non-hazardous area
②
Potentially explosive atmosphere
③
Basic electronics
Figure 4-7 2-/3-/4-wire device version, with 2-wire connection type (Ex i/Ex n/Ex t)
18
④
Binary input 1
⑤
HART communicator
for 6DR52..-0E/D/F/G/K... only
⑥
Signal source
SIPART PS2 (6DR5...)
A5E03436620-04, 02/2014