Trouble-Shooting Chart

The following table lists a variety of common problems, possible causes and recommended solutions.

Error Condition

Possible Cause

Solution

 

 

 

Many device time-out errors.

Protocol Timer Tick set

Increase the PTT from 30 to a higher value (multiples

 

too low.

of 10 only, one step at a time; i.e., 40, 50, 60…).

 

Communication Time-out

Check that the Communication Time-outvalue is set

 

value set too low.

correctly (default is 2000 milliseconds.)

Client application times out while

Valid Data Time-out set

Increase Valid Data Time-outvalue. Should be around

setting up DDE link or receives

too low.

5000 milliseconds (5 sec) for most networks.

negative acknowledgment.

 

 

#NAME on Excel spreadsheet (client

Item name is incorrect.

Check for precise spelling and correct mnemonic.

application)

 

Make sure device is not deactivated.

 

 

#N/A on Excel spreadsheet (client

Data is currently

Server may be down, suspended, or stopped, or port

application)

unavailable.

may be suspended.

 

 

Data request may not yet have been processed.

 

 

 

Printing I/O traffic – output is

Server is too involved with

Suspend Protocol, then print.

compressed and illegible.

processing traffic to print

 

 

correctly.

 

Printing I/O traffic –whole I/O traffic

Server printing limitations

Suspend Protocol, then save I/O traffic to a file and

buffer does not print.

were exceeded.

print the file from the Windows Notepad accessory or a

 

 

word processor.

Error Messages

This section provides descriptions of the error messages which may be generated by the PMCS DDE Server. These messages are logged in the WWLogger.

An additional list of error messages specific to the Ethernet-based host is presented after the main list.

Activation of <item name> item failed, item not found in register’s item list.

Activation of item failed when client requested a link to this item. Please contact Customer Service. This error message does not appear in normal circumstances — it appears only if the item list is corrupt or if the toolkit gives an out-of-sequence ProtActivateItem() call.

Could not find register group with name CPML3710WFCReg, so DDE execute failed.

This is a device-type configuration problem. Please check that you have the correct GE32MODB.CFG file.

Could not find register group with name CPML3720WFCReg, so DDE execute failed.

This is a device-type configuration problem. Please check that you have the correct GE32MODB.CFG file.

DDE Server User’s Guide

Chapter Five - Troubleshooting 59

Page 62
Image 62
Black Box GEH-6510 manual Trouble-Shooting Chart, Error Messages