Emerson Micro Motion 9739 MVD

QuickstartwithProLinkII
Figure3-9ProLinkIIconnectiontoRS-485network
A
B
C
D
E
F
APC
B25-to-9pinadapter,ifnecessary
CRS-485toRS-232signalconverter
D120-Ω,1/2-wattterminatingresistorsatbothendsofthesegment,ifnecessary
EDCSorPLC(mustnotbecommunicatingwiththetransmitterduringtheProLinkIIconnection)
FTransmitter
5.StartProLinkII.
6.ChooseConnection→ConnecttoDevice.
7.Ifnecessary,settheconnectionparameterstomatchtheModbus/RS-485parameterscongured
inyourtransmitter.
Tominimizecongurationrequirements,thetransmitterusesanauto-detectionschemewhen
respondingtoaconnectionrequest.Thetransmitterwillacceptallconnectionrequestswithinthe
auto-detectionlimits(seeTable3-2).
Table3-2Auto-detectionlimits
ParameterOption
Protocol
HART,ModbusASCII,ModbusRTU
AddressRespondsto:
•Serviceportaddress(111)
•ConguredHARTAddress(default=0)
•ConguredModbusAddress(default=1)
Baudrate
Standardratesbetween1200and38,400
Stopbits
0,1
Parity
Even,Odd,None
ConfigurationandUseManual
39