Installation
4-6
L
_^ONMObk
4.4.2 Wiring via RS485 (LECOM-B)
The following figure schematically shows the connection to a host (PC or PLC) via RS485
(LECOM-B).
2101IB
RS232
RS485
2a
2b
3
4
RS485
RS485RS485
1
S1
89887271
5939
S1
898872715939
S1
898872715939
1
Fig. 4-4 Wiring for RS485 (LECOM-B)
Interface cable RS485
Optional host connection
a) directly RS485
b) RS232 via interface converter 2101IB
PC system cable
2101IB interface converter
Note!
• We recommend the use of appropriate accessories (see chapter 8.1.3).
• Please do not use any other but a shielded and twisted cable for wiring the RS485 interface
cable.
Wiring features for RS485 (LECOM-B):
Type 2102IB.V002
Communication media RS485 (2 wires)
Network topology Line
Possible number of controllers 31
Maximum cable length 1200 m
Maximum baud rate 19200 bit/s
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