Yokogawa Button Operated MV2000 Uživatelský manuál stáhnout pdf (Strana 44)

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2.8 Reading/Writing the MV Data from Another Device

via Modbus

The MV is a Modbus server.

For Modbus specifications, see section 7.3.

ConguringtheModbusServer

You can configure the Modbus server so that another device will be able to read or write

the MV data via Modbus.

◊ Press MENU and then select Menu tab > Basicsettingmode > Menu tab >

Communication(Ethernet) > Server

• Modbus

Set the Modbus parameter under Server to Use. If you select Not (not use), you will

not be able to use the Modbus server function.

PortNumber

The default value is 502. To change the value:

◊ Press MENU and then select Menu tab > Basicsettingmode > Environment tab >

Communication > Serviceport

For the selectable range, see section 7.1.

ReadingorWritingtheMVDatafromAnotherDevice

Another device (client device) sends commands to the MV to read data from the MV or

write data to the MV.

For the function codes that the MV supports and the MV registers that the client device

can access, see “Modbus Server Function” in section 7.3.

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Yokogawa Button Operated MV2000 Uživatelský manuál Strana 44