Baldor Modbus Plus Bedienungsanleitung PDF herunterladen (Seite 8)

AN00174-001 Modbus TCP Fieldbus Option for MotiFlex e100.doc

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There are 1000 NetData channels available (0 to 999). We will start our mappings from

Channel 1…

Click on ‘OK’. WorkBench will now update the list of Receive and Transmit Process Data items…

Repeat this process adding three more channels of NetData (Channels 2 to 4) to the Receive

Process Data.

The order of these entries is important. The first item in the list will correspond to the lowest

NetData is a 32-bit value so each NetData object will consume two 16-bit registers. How this

data is encoded is down to the Modbus/TCP client (e.g. the PLC). The client can load these

registers in a number of different formats (e.g. LONG, FLOAT).

The read the correct data values on the drive (and NextMove e100 once the data is mapped

onwards) you must be aware of the data format used by the client. We will illustrate this

further later in the Application Note.

The Up/Down arrows to the right of the mapped Process Data list allow you to modify the

order of the configured Process data if necessary.

Double-click the Transmit icon to configure the Process Data the PLC is going to read from the

drive. Repeat a similar process to that used to configure the receive data. Add two further

NetData objects (channels 3 and 4).

Your dialog should look like this:

Again the order of the Transmit data is important. NetData

Channel 3 will map to the first Modbus register in the Write

Process data area (0100 hex).

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Baldor Modbus Plus Bedienungsanleitung Seite 8