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Click "OK"
After the SSD download the Control Unit will restart. A number of faults may then be
generated, e.g. due to Control Units not connected yet. This will cause "heavy traffic" on
the network, which may affect (delay) the SSD download to the other units.
Disconnected at start-up
In the COM loop Properties dialog box it is possible to select the option "Disconnected at
start-up". The COM loop will then be disabled directly after the download restart and
therefore no faults will be generated.
Note: A COM loop "Disconnected at start-up" can be re-connected via menu H8/S1 but
it will then be disconnected again after next restart. Finally the SSD for that Control Unit
has to be downloaded again with the option "Disconnected at start-up" not selected.
23.1
COM loop menu
23.1.1
Check Loop
In the EBLWin COM loop icon pop-up menu, select, "Check Loop". This function can be
used after (or before) the download of SSD. The function is as follows:
The Control Unit will find all units connected on the selected COM loop. If there is a break
(cut-off) or short circuit on the loop, only the units in the A-direction will be found and shown,
i.e. an indication where the break (cut-off) or short circuit is located.
For all units, the address (1-255) and the type of unit will be reported to EBLWin. All
differences compared to the installation (SSD) that is open in EBLWin will be listed and can
be saved and/or printed out.
"Unknown device" means that the type cannot be identified, e.g. faulty unit.
"Several reply" means that more than one unit have the same address or bad COM loop
communication.
Note: During this check, the COM loop will be disconnected (disabled) and no alarms or
faults can be activated. Disconnected COM loop is indicated by the LED Fault /
Disablements "General disablements" (L10).
23.1.2
Auto generate loop
If you are on site, the Auto generate function can be used to create the SSD. Open a new
installation in EBLWin, connect the PC to FT1020G3 and log on
159
An EBLWin key 5094 (a hardware key) is required, i.e. plugged in a USB port in the PC.
Technical/Programming Manual
163
FT1020G3 Rev 2.2.1
159
. Select a COM loop,
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