Command Syntax for CWSERV

Generally, a DDE command consists of three elements - the name of the service being used, the topic, and the item.

For the CIMPLICITY to Windows Server:

  • The service is CWSERV.
  • The topics supported are POINT and SYSTEM. Use the Point topic to display CIMPLICITY point information. Use the System topic to display CWSERV system information.
  • The items supported for the POINT topic correspond to various point attributes such as value, alarm limits, and point state.
  • The items supported for the SYSTEM topic are FORMATS, SYSITEMS, TOPICS, and HELP.

The format of a particular DDE command depends on how it has been implemented in the application where you are using it.