Black Box GEH-6510 manual Starting the Server, Com Port

	than 20 characters long (8 characters if used with a third-party HMI
	client). Only alphanumeric characters and underscores are permitted;
	the topic name cannot include spaces or special characters, such as: +
	* / /, ? () “ ‘.
Com Port	This pull-down menu lists the configured communication ports.
	Select the comm port to which this device is attached. If you don’t
	see the correct port listed, it was not configured properly in the
	previous section. Double-check your port configuration and try again.
Device Type	Select the type of device from this pull-down menu, such as POWER
	LEADER EPM (PLEPM). This tells the DDE Server what kind of
	register map to expect for this device. (Details of PMCS device
	register maps can be found in GEH-6509, the PMCS DDE Server
	Interface Reference.)
Slave Add	Enter the device’s Modbus address. This tells the PMCS DDE Server
	what number to call to get data from the device. This address will be
	in the range 1 – 247, depending on the device type. See GEH-6502,
	POWER LEADER Network Architecture Guide, for details on
	Modbus RTU device addressing and Modbus-equivalent addresses
	for commnet devices.
Scan Interval	This is the frequency at which the DDE Server will try to scan the
(in msec)	device for data once a DDE request has been made by a client
	application. The default is 1000 milliseconds. Leave this alone for the
	time being – we’ll discuss it more in Chapter 6, Advanced Options.

Step 2. Now that you’ve set up the device specifics, click OK to return to the Device Configuration screen. You should see the device you just added in the list of Configured Devices.

Repeat these steps for each device on your networks until you’ve configured all the devices.

At the bottom right of the Device Configuration dialog box, you’ll notice a check box labeled Activate. This box provides a one-step way to turn a device on or off at the Server. Make sure this box is checked for each device; devices which are not Activated will not communicate with the Server.

When you’ve configured all the devices and clicked OK to exit the Device Configuration dialog box, you’ll return to the Configuration dialog box. There is only one button offered here rather than the four configuration options: Close and Restart Server. Clicking this button exits Configuration and puts the Server on- line.

Starting the Server

Clicking the Close and Restart Server button in the Configuration dialog box automatically puts the PMCS DDE Server on-line. If you click on Cancel instead, any configuration changes you may have made will be discarded.

The Server will now wait for a DDE conversation to be initiated by a client application. When it receives a request for data, it interprets the request, fetches the data from the appropriate device, and passes it on to the client application. The PMCS DDE Server continues to monitor the requested data at the assigned scan interval and updates the client if the data changes.

Activate a client application and initiate a DDE request for data (see the client application documentation for instructions ) to ensure that the Server is running correctly.

DDE Server User’s Guide Chapter Three - Getting Started • 21