RayTek 54301 operating instructions 32MID

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