Designating A Port As A Master Station (Step 1) - Delta Electronics AH500 Operation Manual

A H 5 0 0 O p e r a t i o n M a n u a l
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Method 3
Right-click a network, and then click Construct PLC Link on the context menu.
After the users use one of the methods described above, the PLC Link Table Editor window will be opened.
The PLC Link Table Editor window leads the users to construct a PLC Link step by step. The steps of
constructing a PLC Link are designating a port as a master station, setting communication parameters, and
creating a data exchange table. The system leads the users to the operation screen displayed last time as soon
as the PLC Link Table Editor window is opened. As a result, if the users construct a PLC Link for the first time,
the screen displayed will lead the users to accomplish the first step.
Besides, a PLC Link is executed through special auxiliary relays and special data registers. The construction
tool introduced here is just a friendly user interface which helps users download the parameters related to a
PLC Link to the related special auxiliary relays and the related special data registers. The exact execution of a
PLC Link depends on the special auxiliary relays and the special data registers in a PLC. To ensure that the
PLC Link constructed can operate normally, users have to make sure of the functions of the PLCs and the
limitations of the PLCs with regard to the PLC Link.
11.1.2.2

Designating a Port as a Master Station (Step 1)

Only an AH500 series CPU module, an AH500 series module, a DVP series PLC, or a DVP series module can
be designated as the master station. Not all ports of a PLC or a module can be designated as the master
station, and therefore users have to read the usage of the PLC or the module before they designate a port as
the master station. Besides, if some of the ports of a node can be designated as masters, the PLC which is a
part of the node will execute the PLC Link no matter what port is designated as a master station.
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