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Online' 'communication parameters, Principle of a gateway system, L-force | plc designer – Lenze PLC Designer PLC Designer (R2-x) User Manual

Page 235

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L-force | PLC Designer

The Individual Components

DMS 3.2 EN 02/2011 TD29

233

6.6.22

'Online' 'Communication Parameters'

You are offered a special dialog for setting communication parameters when the
communication between the local PC and the run-time system is running over a
gateway server in your system. (If the OPC or DDE server is used, the same
communications parameters must be entered in its configuration).

See the following items:

• Principle of a gateway system
• Communication Parameters Dialog for the local PC
• Setting up the desired gateway server and channel
• Setting up a new channel for the local gateway server
• What the communications parameters dialog on the local PC shows

6.6.23

Principle of a gateway system

Let us examine the principle of the gateway system before explaining the operation of
the dialog:

A gateway server can be used to allow your local PC to communicate with one or more
run-time systems. The setting concerning which run-time systems can be addressed,

which is specifically configured for each gateway server, and the connection to the
desired gateway server, is made on the local PC. Here it is possible that both the
gateway server and the run-time system(s) can run together on the local PC. If we are
dealing with a gateway server which is running on another PC we must ensure that it

has been started there. If you are selecting a locally installed gateway server, it
automatically starts when you log onto the target run-time system. You can recognize

this through the appearance of a PLC Designer symbol on the bottom right in the task
bar. This symbol lights up as long as you are connected to the run-time system over
the gateway. The menu points Info and Finish are obtained by clicking with the right
mousekey on the symbol. Finish is used to switch off the gateway.

See the following scheme for presenting a gateway system: