Several Breaks (Cut-Offs) On The Com Loop - Panasonic EBL128 Planning Instructions

Panasonic Eco Solutions Nordic AB
MEW01622 Rev: -
4.1.2
must be a single break (cut-off) on the COM loop. One fault will be
generated and the following fault message will be shown:
FAULT: Cut-off SCI nn <-> SCI nn
nn = A, B, 00, 01, 02, 03 and up to 63 depending on if none, one or
several isolators are used.
isolators in the A- and B-direction respectively.
If no isolator is used the information will be: A<-> B.
If one isolator (no. 0) is used: A<->00 or 00<-> B
If two isolators (no. 00 and no. 01) are used: A<->00, 00<->01
or 01<-> B
...and so on.
The break (cut-off) is found in the specified segment, e.g. A<->01.
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Each 10 minute a new attempt is made to communicate in the A-
direction only.
When the fault is corrected (no break / cut-off) the communication
automatically returns to communicate in the A-direction only.

Several breaks (cut-offs) on the COM loop

If not all units are found when communicating in the A-direction
only, and not when communicating in both directions, there must be
two or more breaks on the COM loop. A "no reply fault" (see above)
will be generated for each unit not found.
There will also the following fault message:
FAULT: Cut-off SCI nn <-> SCI nn
nn = A, B, 00, 01, 02, 03 and up to 63 depending on if none, one or
several isolators are used.
isolators in the A- and B-direction respectively.
In case of a break (cut-off) in more than one segment there will also
be the following message:
FAULT: Several faults on COM loop
In case of "Several faults on COM loop": Correct the cut-off fault
shown in the display and the next cut-off fault will be shown, and so
on.
th
Each 10 minute a new attempt is made to communicate in the A-
direction only.
When all faults are corrected (no breaks / cut-offs) the communication
automatically returns to communicate in the A-direction only.
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NOTE! After the fault has been acknowledged it can last up to 10 minutes
before the communication returns to communicate in the A-direction only.
EBL128 Planning Instructions V2.0.x
A & B are the built-in control unit
A & B are the built-in control unit
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