Bender A-ISOMETER IRDH375 - Page 46

46
Interface
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The optimum topology for the RS485 bus is a chain connection. In this
connection, device 1 is connected to device 2, device 2 to device 3, device 3
to device n etc. (daisy-chain connection). The RS485 bus therefore represents a
continuous path without branches.
There are three examples for correct arrangement:
There are three examples for a not allowed arrangement:
A suitable type of cable for the wiring of the RS485 bus is:
Shielded cable, wire cross section 0.6 mm2
(z.B. JY [ST] y 2x0.6), shield single-ended to earth (PE).