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Communications Interface

The Communications Interface section on the main window is used to specify the connection interface to a display.

Displays can be connected either by RS232 or LAN (if supported).

When connecting to a display via LAN, select LAN and enter the IP address of the display.

When connecting via RS232, select RS232 and select the COM port on the host PC. COM ports that are currently

available on the system are shown with a green check mark.

When connecting to displays that are daisy chained via RS232, but the rst display is connected via LAN, select LAN

and enter the IP address of the rst display.

See the example display connections section for examples of various congurations when multiple displays are used.

An additional option, Dummy Interface, is provided to allow some limited functionality of the application without the

need to have a display connected. This can be useful for example to determine the data to send to perform a particular

command, using the View - Communications Log feature, even when a display is not physically connected. Only the

data to send to perform a command will be shown, and it does not mimic the expected reply from a display.

Select the Monitor ID of the display or group of displays to control. The Monitor ID can also be automatically detected

by clicking Auto Detect. In the case of multiple displays being daisy-chained, the lowest Monitor ID being used will be

detected.

Click the Test button to try communicating with the display. If this is successful, a message will be shown at the bottom

of the window. An error message will be shown if an error occurred. See the troubleshooting guide for suggestions.

The Retry communications on error setting will force the application to re-send a command up to 3 times if it fails.

This can be useful in some environments if the connection is unreliable due to noise etc.

The Increased LAN timeout setting increases the time that the software will wait for a reply. This can be useful if a

display is connected via a high-latency LAN connection such as a cellular link.

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NEC PD Comms Tool Guía de usuario Pagina 10