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7 Setting up sensor and Modbus interface with PACTware
VEGAPULS 63 • Modbus and Levelmaster protocol
41364-EN-170711
7.3 Set instrument address
The VEGAPULS 63 requires an address for participating as a Slave
in the Modbus communication. The addess setting is carried out via a
PC with PACTware/DTM or Modbus RTU.
The default settings for the address are:
•
Mobus: 246
•
Levelmaster: 31
Note:
The setting of the instrument address can only be carried out online.
Start the project assistant and wait until the project tree has been set
up. Then, in the project tree, go to the symbol for the Modbus gateway.
Select with the right mouse key "Parameter", then "Online parameter
adjustment" and start the DTM for the Modbus electronics.
In the menu bar of the DTM, go to the list arrow next to the symbol for
"Screwdriver". Select the menu item "Change address in the instru-
ment" and set the requested address.
In the device catalogue, select the option "Modbus Serial" under
"Driver". Double click on this driver and integrate it into the project
tree.
OpenthedevicemanageronyourPCandndoutwhichCOMinter-
face the USB/RS 485 adapter is located on. Then go to the symbol
"Modbus COM." in the project tree. Select "Parameter" with the right
mouse key and start the DTM for the USB/RS 485 adapter. Enter the
COM interface no. from the device manager under "Basic settings".
Select with the right mouse key "Additional functions" and "Instrument
search". The DTM then searches for the connected Modbus partici-
pants and integrates them into the project tree. Now, in the project
tree, go to the symbol for the Modbus gateway. Select with the right
mouse key "Parameter", then "Online parameter setting" and start the
DTM for the Modbus electronics.
In the menu bar of the DTM, go to the list arrow next to the symbol for
"Screwdriver". Select the menu item "Change address in the instru-
ment" and set the requested address.
Then move again to the symbol "Modbus COM." in the project tree.
Select with the right mouse key "Additional functions" and "Change
DTM addresses
".EnterherethemodiedaddressoftheModbus
gateway.
The instrument address is set in register no. 200 of the Holding
Register (see chapter "Modbus register " in this operating instructions
manual).
The procedure depends on the respective Modbus-RTU and the
congurationtool.
Via PC through Modbus
electronics
Via PC through RS 485
cable
Via Modbus-RTU