Readers
5.4 RF640R reader
Voltage infeed through internal source (no electrical isolation)
Figure 5-10
Example circuit 1: Digital inputs
Alternative connection possibilities:
● Pin 2 (VCC) to Pin 9 DI Common
● Pin 1 GND to busbar inputs
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System Manual, xx/2014, J31069-D0171-U001-A15-7618
SIMATIC RF600