WEB S ERVER CPU MODULE U SER ’S MANUAL FC9Y-B1278 5-115: FUNCTION AREA S ETTINGSMaintenance Communication ServerWhen Enable maintenance communication server is enabled, the standard maintenance communication server can beconfigured. For details, see "Maintenance Communication Server " on page 7-1.Server ConnectionSelect the communication mode for each server connection in the corresponding pull-down list box. A maximum of eightserver connections can be configured. Maintenance communication server, user communication server, or Modbus TCPserver can be selected as the communication mode. Leave the communication mode of server connections as Unused ifthose connections are not used.Client ConnectionSelect the communication mode for each client connection in the corresponding pull-down list box. A maximum of threeclient connections can be configured. User communication client or Modbus TCP client can be selected as thecommunication mode. Leave the communication mode of client connections as Unused if those connections are notused.For details on each communication function, see the corresponding chapter in this manual.Special Data Registers/Special Internal RelaysCommunication Mode InformationThe communication mode information of the server and client connections can be confirmed with special data registersD8278 and D8279. The communication mode information of the client connections 1 through 3 are stored in D8278. Thecommunication mode information of the sever connections 1 through 8 are stored in D8279.Communication mode information for client connections 1 through 3 is stored in D8278 as follows:Communication mode information for server connections 1 through 8 is stored in D8279 as follows.Client 1Client 2Client 300: Reserved01: User Communication10: Modbus TCP Client11: UnusedD8278Bit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0Server 1Server 2Server 3Server 4Server 5Server 6Server 7Server 800: Maintenance Communication01: User Communication10: Modbus TCP Server11: UnusedBit 15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0D8279Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: info@clrwtr.com
