4. Configuring the communications dialog table
Click the zone "use dialog table"
When you have defined the various pages, you willl have to define the content of the communications dialog table.
chapter C
provides the information on the various bits and words in the dialog table.
Select the Configure/Dialog table menu.
B
Base address
Indicate the address of the beginning of the table (address of the first word in the dialog table).
Composition of table
Add or delete the various elements to/from the table as needed. Use of the dialog table is optional in applications that do not use alarm pages.
Alarm pages require the creation of an alarm table that is defined by the dialog table. For further information on the various dialog table
components, consult the XBT-L1000 software on-line help or chapter C
of this manual.
Cycle
The terminal's read/write period for the dialog table is used to optimize the terminal/PLC exchanges (
see chapter C, § 3. PLC/terminal communication dialog cycle, Page 30
).
Dialog table security
A word is used in the table for security purposes: the "Authorization" word. Using this word ensures PLC/terminal dialog security. When this word is not at the correct value, the terminal cannot write any word in the PLC and cannot execute any command.
Alarm table
See chapter D, § 5. Alarms, Page 38
.
Graphic Magelis
B - 13
