Modicon M340 Serial Link User Manual说明书用户手册.pdf

ModiconM340with

UnityPro

SerialLink

UserManual

07/2008eng

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TableofContents

SafetyInformation....................................7

AbouttheBook.......................................9

PartIIntroductiontoModbusandCharacterMode

Communications...............................11

AtaGlance.....................................................11

Chapter1IntroductiontoModbusand

CharacterModeCommunications......................13

IntroductiontoModbusandCharacterModeCommunications.............13

PartIIHardwareInstallationforModbusand

CharacterModeCommunications.................15

AtaGlance.....................................................15

Chapter2IntroductiontoSerialCommunicationsonthe

BMXP341000/2000/2010/2020Processors...............17

IntroductiontoSerialCommunicationsonthe

BMXP341000/2000/2010/2020processors............................17

Chapter3SerialCommunicationsArchitectures...................21

AtaGlance........................