SIGMATEK RAE 100, Manual

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REMOTE ACCESS HOW TO
Page 48 07.10.2021
Figure 5.67 Locating the node id and data type from the UaExpert data
access view.
Namespace index
Identifier type Identifier
Address for RAP
variable
2 String Vartemp ns=2;s=vartemp
2 Numeric 20001 ns=2;i=20001
Figure 5.68 Example of creating the RAP variable identifier.
5.8.1.2 Modbus TCP
To be able to record or utilize control data, the control must make data available to the RAP.
•
Further information on the Modbus slave is available in the class documentation.
The Modbus slave must be added to the control that is the data source:
1. Add the ModbusTCPSlave class. Note the port number for the RAP configuration ().
2. Setup the data sources in the ModbusTableBase class. This class assigns a server
to a Modbus register (Figure 5.70).
3. See section 5.8.1 for adding a Modbus data source. When applying Modbus settings
(Figure 5.71), note the following:
a. Slave number = 1
b. Byte order = ABCD
4. To enable this data source service, go to RAP > Device > CONFIG and click on
"PUSH CHANGES".
5. To add variables:
a. From RAP > Device > Services click on the pencil icon of the relevant
control.
b. Select the "Data Source" service.
c. Click on "OPEN CONFIGURATOR".
d. Click on the
“+” symbol in the Data Configurator to provide data for
recording (Figure 5.72).