Beckhoff CX25000031 Manuel d'utilisateur télécharger pdf (Page 16)

Mountingandwiring

3.6 ConnectionsCX25000031

TheCX25000031systeminterfacefeaturestwoRS422/RS485interfaces.Theinterfacesarerealizedvia

two9pinSubDplugconnectors(X310andX310).Ifthereisneedformorethantwoserialinterfacesupto

fourmodulesfurtherRS422/RS485interfacescanbeaddedtothesystem.Thus9serialinterfaces(four

CX25000031modulesandtheoptionalinterfaceCX20x0N031)canbeaddedtotheCX20x0system.The

optionalinterfaceCX20x0N031isshowninthesystemasCOM1.Thepinassignmentforallinterfacesis

equalanddescribedbelow.

Themaximumbaudrateonbothchannelsis128kBit.Theinterfaceparametercanbesetintheoperating

systemorinthePLCprogram.

COMInterfaceRS485/RS422(connector)(X310,X311)

Table1:PinassignmentCOMinterface:

PIN Signal Type Description

2 TxD+ DataOut+ Transmit422

3 RxD+ DataIn+ Receive422

5 GND Ground Ground

6 VCC VCC +5V

7 TxD DataOut Transmit422

8 RxD DataIn Receive42

ForRS485Pin2and3(Data+)aswellasPin7and8(Data)havetobeconnected.

CX2500003116 Version1.1

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Beckhoff CX2500­0031 Manuel d'utilisateur Page 16