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Figure 2. PMCS DDE Server: EI Protocol RS-485 configurations.
The differences between the three versions of the Server are minor and, except where
noted the software is functionally identical. The Modbus-host version of the PMCS
DDE Server is the focus in this document; differences in the TCP/IP versions are
noted when present. The Modbus version of the server may be used to service local
RS-485 ports directly from the host PC, as well as remote serial ports accessed via
the Ethernet Gateway over TCP/IP communications. Another variant of the DDE
server works in the same way as the Modbus RS-485 DDE server on EI Protocol.
In the interest of brevity, we'll refer to the PMCS Network and Device Configurator
with DDE Server as "the PMCS DDE Server" or simply "the Server" – be aware that
this document describes only the PMCS DDE Server. The information herein is not
intended to apply to other DDE servers.
8 • • • • Chapter Two - Overview
DDE Server User's Guide
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