Weidmuller WI-I/O EX-1-S: Wireless I/O Expansion Modules Quick Setup v.1.12 - Manual

A, B: Connect RS485
(Modbus)
RS485
termination
switch
Up = terminated
Down = un-terminated
Power and
Modbus
connector
Modbus
Master
WI-I/O-EX-
1-S-xx
A A B A B A B
RS485
RS485
Termination
switch up
(terminated)
Set a unique Modbus slave address for each
WI-I/O-EX-1-S-xx connected to the Modbus Master
Example shows address “01”
ADDRESSING
x10 x1
B A - + POWER
Modbus
Master
Power
Supply
Power Connections:
„+‟ : Pos Supply (10.8 to 30 VDC**)
WI-I/O-EX-1-S-11: 300mA max
WI-I/O-EX-1-S-12: 900mA max
WI-I/O-EX-1-S-13: 900mA max
EARTH wiring minimum 2mm² - 14 AWG
B A - +
ON
WI-I/O-EX-1-S-xx Quick Setup Guide - Connections
WI-I/O-EX-1-S-xx INSTALL V1.12.pdf Weidmuller February 2010 V1.12
Address switches must be 00 for WI-Series
protocol ADDRESSING
x10 x1
Connection to Modbus Master Connection to I/O-Series Radio
**Check rear label for
operating voltages
Power
Power Power
Modbus
Modbus Modbus
+ -
Consult user manual for Modbus addresses
A, B: Connect RS485
(I/O Series Radio)
RS485
Termination
switch
Up = terminated
Down = un-terminated
Power and
Modbus
connector
I/O-Series
Radio
A B A B A B A B
RS485
RS485
Termination
switch up
(terminated)
B A - +
POWER
I/O-Series
Radio
Power
Supply
Power Connections:
+ -
B A - +
RS485
Termination
switch up
(terminated)
ON
**Check rear label for
operating voltages
Power Power Power
RS485 RS485 RS485
Battery
Setup using Weidmuller WI-Series configuration
utility.
_
+
Supply
Earth
Example shows address “00”
„-‟ : Neg Supply
B RS485 Termination
switch up (terminated)
or
120 Ω Fitted across
RS485
Earth
Earth Earth Earth
Earth
Earth Earth Earth
Earth
„+‟ : Pos Supply (10.8 to 30 VDC**)
„-‟ : Neg Supply
Ensure all earth connections are at the same potential.
EARTH wiring minimum 2mm² - 14 AWG
Ensure all earth connections are at the same potential.
WI-I/O-EX-
1-S-xx
WI-I/O-EX-
1-S-xx
WI-I/O-EX-
1-S-xx
WI-I/O-EX-
1-S-xx
WI-I/O-EX-
1-S-xx
WI-I/O-EX-1-S-11: 300mA max
WI-I/O-EX-1-S-12: 900mA max
WI-I/O-EX-1-S-13: 900mA max