PC与三菱通讯模块QJ71C24NRS485通讯

1、PC与三菱串行通讯模块QJ71C24N通讯模块(RS485)设定1)硬件连接：块模讯通行串菱三PLC通讯协议详情开关设定未设:QJT1C24N项目CH1CH2隹送设定操作设置独立独立数据位88奇偶位有无奇数/偶数校验偶数偶数停止位11和数检查代码有有RUN中亘沉允许允许变更设定允许允许通信速度设定11520i：ibpsy&oobps通信协谡设定MCWi宠式5)也协议.矗式4)站号设定化H1,2通用:曲占0PLC开关设定(RS485通讯对应CH2严关设定对应3和SW4)QJ71C24SWITCHSETTINGASSISTANTPROGRAMMELSEC-QQJ7IC2i#SWITCHSETTIN

2、GASSISTANTPROGRAMrBaudRate50(-300S00-12002400(-4S009600(-1440019200A段撿时时方世徘恻亠PLCCPU伺（術令传输而弊饶请書!s申京羊腳电pt,ar歯督的ian卉再，PLUCFU恻亠对方设备侧E应苫传输艾件【止常皓朿时）丨訂（异常结柬时UC2(OOOD)IL-*-.(D.R.T.CJ3nACPUI：lz：i|.iI中宀11IE蔦；i-H,Ji世的WUg、Momicmoq):JasQrbACFLIliv.：!.1I*-1.DCi3iic6畑鞘(1)读出D1616的数据(命令0401，子命令0000)1：.为dRirwPt兀卩t-iM

3、苗：小I如亘机拆电靄地遅右劇氛处理内吉1ifcAmteftfflJTJjAft14tl如唯A16H立1S啊IMQIICMU1l1.l-1!ii?.I；1Z-.T-.M，351Amia1792d34Jtl3555$欧.也I爭中恒O1Q1IUKC3140IICOOU1I11E3,：；H内找elfit.YxM?r.训知删aj硼爭1.粗0fi23W1小为单储曉in字M元件w.R,T右詡：？仪1嵐沟肩阳Y.WA9fidj畑氏nea.dmia抑g&4.ft1T韓起3期也加世1因点字单也1401150ZIQi吐16血黑单嶺m馆就用ttfjkVxM4)料九电*o爭训啊a期0爭豳Ifi1071W加世力献q.ft

4、糾r*uLUn曲刖匾对Q/QnACPU駁外的PLCCPU乜町以便用访问软忙Iff侨器询角Xi；呂J1；、il.1内容ASCII罠码:逬刮代吗符号容ftwc1:、肌|内容ASCII代吗.!NUL00hNulloCLgClear0STXD2,iStanofTexto0C=0D.0一FAkScPtJ)00:A4w.!&中的(1估卩部分丙指疋的菽兀II命令丄嚨的卽i匚以仙NJ(g见爪謝的翦33wisLfiRTiflfiMnum节BASCII：ENQ+F90000FF0004010000D*00161600010D+CR+LF(CheckSum=0D)HexCode：054639303030304646

5、30303034303130303030442A3030313631363030303130440D0AReturnCode：1546393030303046463030374632340D0A(异常)0246393030303046463030303036340346380D0A(正常)将数据100(H0064)写入D1616(命令1401，子命令0000)ASCII:ENQ+F90000FF0014010000D*00161600010064D8+CR+LF(CheckSum=D8)Hex:05463930303030464630303134303130303030442A30303136

6、3136303030313030363444380D0AReturnCode:1546393030303046463030374632340D0A(异常)06463930303030464630300D0A(正常)三菱PLC特殊寄存器含义：SM111通讯状态：0正常；1异常；(ASCII:ENQ+F90000FF0004010000SM000111000134+CR+LF)SD203CPU运行状态：0:Run;2:Stop;(ASCII:ENQ+F90000FF0004010000SD00020300012D+CR+LF)校验代码算法(CHECKSUM)所有ENQ(05H)到数据内容的和数相加，取后一字节，如发送下述内容：0546393030303046463030313430313030