2
0
1
7
-1
2
16
Appendix
If
two readers
are connected to one interface module, there are two wiring versions:
■
Version A:
One WCS reader is located at the beginning and one WCS reader at the end of the data
line. For both WCS readers, the RS-485 terminator is activated. The interface module is
located between these two heads and does not have an RS-485 terminator. Each WCS
reader is connected to the interface module by a separate data cable.
Figure 5.2
Connection of
two
reading heads, Version A
Interface or control
(PLC)
Reading head
Reading head
