Attach to Network Device Control
On the Service menu, one of the selections is ATTACH TO NETWORK DEVICE. This table
serves the following purposes:
•to upload new parameters when switching the controller to HFC-134a refrigerant.
•to upload the Occupancy Schedule Number (if changed) for OCCPC03S, as defined in the Service01 table
•to attach the LID to any CCN device, if the machine has been connected to a CCN Network. This may include other PIC controlled chillers.
•to change to a new PSIO or LID module or upgrade software.
Figure 22 illustrates the ATTACH TO NETWORK DEVICE table. The Local description is
always the PSIO module address of the machine the LID is mounted on. Whenever the
controller identification of the PSIO is changed, this change is reflected on the bus and address
for the LOCAL DEVICE of the ATTACH TO DEVICE screen automatically. See Figure 17.
Whenever the ATTACH TO NETWORK DEVICE table is entered, the LID erases information
on the module to which it was attached in order to make room for another device. Therefore, it is
then required to attach to a CCN module when this screen is entered, even if the LID is attached
back to the original module. When the ATTACH softkey is pressed, the message ‘‘UPLOADING
TABLES, PLEASE WAIT’’ flashes. The LID will then upload the highlighted device or module. If
the module address cannot be found, the message ‘‘COMMUNICATION FAILURE’’ will appear.
The LID will then revert back to the ATTACH TO DEVICE screen. The upload process time for
