Nematron Pointe Controller - Manual (Page 224)

Chapter 8: Networked Operations Pointe Controller User Guide
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4. To enable Modbus communication via the RS232 serial port:
a. Click the Serial checkbox. The Serial port configuration settings
become enabled.
b. Configure the serial port as needed for your control application. (The
default values of 9600 baud, 8 data bits, 1 stop bit and no parity are
recommended.)
5. Proceed to Mapping variables to Modbus addresses , or click OK to save
your changes and close the Modbus Driver Configuration window.
NOTE: You can enable both Ethernet and Serial communications on the same
Pointe Controller unit. However, each type of communications requires additional
memory and processing power, so enable only the features you need for your
control application.
8.2.4 Mapping variables to Modbus addresses
To map Logic Memory variables to Modbus addresses:
1. If the Modbus Driver Configuration window is not already open, open it
now by choosing Project > Configure Modbus Mapping.