Panasonic Eco Solutions Nordic AB
MEW01623 Rev: - EBL128 Operating Instructions V2.0.x
119
28.6 Display statistics for COM loop (H5/A6)
The statistics can be used during commissioning, service, etc.
Pollings are the number of pollings ("questions") sent out by EBL128
to the units connected on the COM loop.
Parity is the received number of parity faults and % parity faults in
relation to the pollings.
No answer is the received number of answer faults / no answers and
% faults in relation to pollings.
Bit length is the received number of bit length faults and % bit length
faults in relation to the pollings.
No. of bits is the number of bit faults and % bit faults in relation to the
pollings. (Bit fault / incomplete answer.)
The Parity, Bit length and No. of bits values shall normally be "0" or
as close to "0" as possible. If not, there are some communication
problems that have to be investigated. Check the COM loop
connections and the loop units. Check so that the COM loop cable is
not placed too close to high voltage cables, etc. that might cause
communication disturbance / problems.
NOTE! All values are set to "0" after a restart and when you re-
connect the COM loop (via menu H8/S1).
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