Yokogawa RotaMASS 3-Series Bedienungsanleitung PDF herunterladen (Seite 67)

IM 01R04B08-00E-E 1st edition February 15, 2012 -00

<9. MODBUS COMMUNICATION TOOL>

9-1

9. MODBUS COMMUNICATION TOOL

9.1 Preconditions

TheModbusCommunicationToolwasdesignedtosupporttheparametersandvaluesoftheROTAMASS3

SeriesModbuscommunicationtypewhichareavailableviaModbus.

TheModbusCommunicationToolsupportsthesamecommunicationsettingsasROTAMASS.

Baud rates: 2400, 4800, 9600, 19200, 38400, 57600, 76800, 115200

Dataformats: 8E1,8O1,8N2,8N1

Modbusmodes:RTU,ASCII

The Modbus Communication Tool was successfully tested on the following operating systems:

Win XP 32bit, Win 7 32bit, Win 7 64bit

TheModbusCommunicationToolusesthe.NET2.0FrameworkfromMicrosoft.Theinstallerwillcheckthe

availabilityof.NET2.0andaskyouforinstallationifnecessary.

TheModbusCommunicationToolisprovidedona“ASIS”basis.AlthoughitmightworkonotherWindows

versionsandwithotherModbusdevicesthiswasnottestedandRotaYokogawadoesnotprovideanyliability,

warranty or support for its use.

9.2 Installation and start

For installation of the Modbus Communication Tool run either the .msi le or execute setup.exe which will

bothbeavailablefromYokogawa.ModbusCommunicationToolisa32bitapplicationandwillbeinstalled

in the "Program Files (x86)" directory by default. For most users there is no need to change the path. To

complete the installation conrm all messages.

Dependingontheversionoftheoperatingsystemand/orsettingssomeusersmightnothaveenough

privilegestoinstallModbusCommunicationTool.Ifyouencounteranyproblemsorerrormessagesduring

installation please contact your system administrator.

Aftersuccessfulinstallationanentry"Yokogawa"willbecreatedinyourstartmenuandaniconwillbeplaced

on your desktop. To start Modbus Communication Tool simply double-click the entry in the start menu or on

the desktop icon.

9.3 Using the Modbus Communication Tool

AfterstartingModbusCommunicationToolapop-upwindowwithlogoanddisclaimerwillappearatrst.

Please read carefully. Only after conrmation the application will continue.

Therstitemstobeshownarethecommunicationsettings.Herethedeviceaddress,COMportofthe

computer, baud rate, data format and Modbus mode can be adjusted.

Note:ThedefaultsettingsofROTAMASSaredeviceaddress1,19200baud,dataformat8E1,ModbusRTU.

MakesurethatallcommunicationsettingsofthecomputerandtheconnectedROTAMASSmatch.To

establishaconnectioncheckalsoproperwiringofthelinesA(D-)andB(D+)betweenyourRS485

interfaceandROTAMASS.

AfteropeningtheCOMportbypressingthebutton"OpenSerial"theconnectionwillbetestedrstandthe

result will be indicated in the status line of the window.

Troubleshooting:

If any other status than "OK" is indicated please check the items below at rst:

Status Description Possible countermeasures

Reply time-out There is no connection at all

orROTAMASSwasnotable

to understand the request

a) CheckifcommunicationsettingsinROTAMASS

and Modbus Communication Tool match

b) Check wiring: polarity, line termination, power

supply

Checksum error Communication is disturbed a) Check communication settings: namely number

of data bits, parity, number of stop bits

b) Check cable connections

c) Check if other members are on the bus and

disconnect them if possible

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