User manual

Installation
Foraninstallationof twoor moresensorsinaRS485network,each
sensoriswiredparalleltotheothers.
Youmayconnectupto32units.Make  suretodeactivatethepreset
shuntresistorforallunitsexceptforthelastone.Thepositionofthe
switchtodeactivatethe
shuntyoucanseeontheelectronicboardin
thefigureabove.
Beforeunitsareinanetworkthemultidropaddressneeds
tobedefined.Eachsensormusthaveauniqueaddress!
Thefollowingfigureillustrates thewiringofsensorsinamultidrop
installation.

RxB
Rx
A
RS232/485
A
dapter
unit 1
unit
before
last
last unit
with shunt
activated!
AB A
A
A
B B
B
unit 2
Figure22:WiringtheRS485Network

The address setting can be done either through buttons or through
softwarealternatively
.
AddressingthroughButtons
Press the <Mode> button until “M” becomes
visible. Use the <Down> and <Up> buttons
until the requested address appears. Press the
<Mode>buttontoacknowledgeyourselection.

AddressingthroughSoftware
Alternativelythesensorcanbecontrolled by means of theoptional
availablesoftwareDataTempMultiDrop.
32 MID