Local And Remote Server - Planar R54 Programming Manual

PLANAR R54x2 COM/DCOM Programming manual
Examples represented in this Manual are written in Visual Basic (VB). Appendix 3
contains examples written in VB, and C++ languages.
Examples\COM\VBA folder contains source codes for examples written in Visual Basic
for Applications® (Microsoft Excel files).
Examples\COM\CPP folder contains source codes for the C++ language examples.
4

Local and Remote Server

PlanarR54x2.exe application can function either as a local server or as a remote server
of COM automation.
Local server runs on the same PC with the automation controller and each of the
programs is executed as an individual application in a separate window. COM
technology is used in this case (Figure 1).
Remote server and the automation controller run on different PCs connected by LAN.
DCOM (Distributed COM) technology is used in this case (Figure 2). When using
DCOM it is necessary to configure the local network by means of DCOM Windows
tools.
COM technology is normally used to control pair of PLANAR R54.
The same automation controller is used for the both COM and DCOM technology.
Some changes to the user program may be required in operators, which establish
connection with the server. Moreover, DCOM technology requires additional settings of
the LAN performed by the LAN administrator.
8