Delta AH500 series, Hardware Operation Manual

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C h a p t e r 11 C o n v e n i e n t F u n c t i o n s
11 - 1 5

Setting area : The users can set the PLC Link constructed.

Monitoring area : The status of the data exchange between the master station and the slave stations is
displayed in this area. The users can also edit registers online in this area.

Indicators : The LED indicators indicate the status of the PLC Link constructed. Please refer to the table
below for more information.
Indicator Description
PLC Run When the PLC which is designated as a master station runs, the indicator is ON.
PLC Link Run When the master station executes the PLC Link constructed, the indicator is ON.
Auto Mode When the PLC Link constructed is executed automatically, the indicator is ON.
Manual mode
When the PLC Link constructed is executed manually, the indicator is ON. After the
master station polls the slave stations a certain number of times, the indicator will be
OFF.
Synchronic R/W When the synchronic reading/writing function is enabled, the indicator is ON.

Setting area
The users can set the PLC Link constructed. If the users set the PLC Link constructed, the values in the
related special data registers in the master station and the states of the related special auxiliary relays in
the master station will be changed. After the users click
Close , the status of the PLC Link will remain
unchanged. As a result, the users have to make sure that the status of the PLC Link constructed is correct
before they click
Close .

When the computer is connected to the PLC which is designated as a master station, the indicator
blinks.

If the Linked Times checkbox is selected, the PLC Link constructed will be executed manually. If the
Linked Times checkbox is unselected, the PLC Link constructed will be executed automatically.

If the PLC Link constructed is executed manually, the users can set the number of times the master
station polls the slave stations. The master station can poll the slave stations 65535 times at most.
After the master station polls the slave stations a certain number of times, the PLC Link constructed will
not be executed.

If the PLC Link constructed is executed manually, the number of times the PLC Link is executed will be
displayed. If the master station exchanges data with all the slave stations once, the number of times
the PLC Links constructed is executed will be one.

The users can start or stop the execution of the PLC Link constructed by clicking the button.
If the system is disconnect from the PLC which is designated as a master station while the PLC Link
constructed is monitored, the
Continue to Monitor button will appear in the upper right corner of the
Linked Machines Statu s window. After the users eliminate the problem which results in the disconnection,
they can click the Continue to Monitor button.