Siemens SIMATIC RF610T ATEX System Manual page 127

I I nput (DI)
The following diagrams illustrate various connection possibilities.
Note
M M inimum time between changes
Note that changes on the DI/DQ interface that are not applied for at least 1.5 seconds are
not detected by the reader.
Voltage infeed from external source
Figure 5-7
Voltage infeed from external source
Figure 5-8
SIMATIC RF600
System Manual, 06/2019, J31069-D0171-U001-A22-7618
The input is set up with electrical isolation via optocoupler.
Level
– Low: 0 ... 7 V
– High: 15 ... 24 V
Circuit example 1: Digital input
Circuit example 2: Digital output
Readers
5.3 SIMATIC RF615R
127