JUPITER CM-4400 Control Module Installation and Operating Manual 149
Network Description Table
Network Description Table
The Network Description table must be used when the CM-4400 is first
installed on the LAN.
Figure 107. Example of the Network Description of the Jupiter Configurator
Each board is given a user-specified name; this name can be up to eight
characters in length. The system is told which type it is, and the Ethernet
address, in hexadecimal, as shown on the back of the controller chassis. If
the board is redundant, the address of the second unit is entered.
Row numbers on Jupiter tables are used as the “logical” numbers for
de
vices. Changing the row number of an existing device (by inserting/
deleting a new controller board in the middle of the table, for example) will
disrupt control of the system, requiring controller boards to be memory-
cleared and reset (see Clearing Persistent Memory (PMEM) on page 106). One
way to avoid this interruption is to add new
devices at the end of tables.
Note Adding a redundant controller board to an existing table will also affect the
system as described immediately above.
Using the Automatic Table Entry Feature
Because entries on this table are needed for entries on other tables, the Con-
figurator will automatically copy (or of
fer as a selectable item) the data
entered on this table to all secondary tables (including Saturn tables). For
example, when a CM-4400 is entered, the name chosen will be added auto-
matically to the Serial Protocol table. For more information about automatic
table
entry, see Automatic Table Entry on page 119.
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