ProgrammingGuide
76 MI
11.7MultipleUnits(RS485MultidropMode)
Upto32unitscanbeconnectedwithinaRS485network,seesection
5.6Installingof Multiple Sensors via RS485 on page 31. To direct a
command to one unit among the 32 possible, it is necessary to
„address“ a command. Therefore, a 3‐digit number is set prior the
command. The 3‐digit number is determined between 001 and 032.
Exception:Broad castcommand.
Ifacommandistransferred,startingwith
the3‐digitnumber000,all
units (with addresses from 001 to 032) connected will get this
command–withouttosendananswer.
Note: A unit with the address 000 is a single unit and not in
multidropmode.
XA=024 willsetaddressto24(unitmustnotbe
inmultidropmode)
Changinganaddress:
(e.g.theaddressischa ngefrom24to17)
command answer
„017?E“ „017E0.950“
„017XA=024“ “017XA024”settingofanewaddress
„024?E“ „024E0.950“
Exampleforthebroadcastcommand:
command answer
“024?E” “024E0.950”
“000E=0.5” willbeexecutedfromallunits,noanswer
“024?E” “024E0.500”
“012?E” “012E0.500”
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