Micromod MOD: 30MLTraining Manual - Manual (Page 138)

Training Manual
Extended MODBUS OPC Server
• Type the name MOD30ML in the Name field (the name is user-configurable and
can be anything!).
• Select the serial communication port of the computer to which the MOD 30ML is
connected, in the Port field. Click on the down arrow in this field to show the drop-
down menu and then select the port. (COM1 for example).
• Type the instrument’s MODBUS address in the address field.
• Leave the Timeout in the default value of 500 ms.

Timeout value in ms is the time for which the OPC server tries to re-establish
communication with the device in the case of a communication failure.
4. Configure the serial port for the communication: Click on the Edit – Ports button on
this dialog box. The Port Properties dialog box will be displayed as shown below:
Figure 8 .3.
Port Properties
• Select the COMM port from the drop-down menu in the Port field and then enable
it by checking the box next to the Enable field.
• Choose the Baud Rate, Parity, Flow Control, Data bits and Stop bits from this
dialog box. Make sure these entries match the settings of the instrument.
• Click on OK to complete the Port configuration.
• The Extended MODBUS Device Properties dialog box will redisplay with the
port number. Leave other fields on this dialog box at their default values.
• Click on OK. The added device will be displayed in the Device Tree on the left
frame as shown in the next figure:
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