User's Manual

File : CS-SUP-MUTI-WTHERMAPP-E01.sxw
7.5.6 Usage limit of the multi-frame mode
The Wavenis protocol doesn't allow the usage of the multi-frame mode in repeater mode, i.e. When
the module is reach through relaying equipments.
It is up to the interrogator equipment to format the frames so that the response fit in a single frame.
Typically in repeater mode, the interrogator module have to read the logged temperature values by packets of
M measurements (M corresponding to the maximal number of measurements that can be read through 3
repeaters).
 WaveTherm – DALLAS : M = 59 measurements
 WaveTherm – PT100 : M = 29 measurements
 WaveTherm – PT1000 : M = 29 measurements
Example for a WaveTherm – DALLAS :
if the number of recordings is 2000, the interrogator equipement have to send the following frames :
frame 1 : reading of 59 recordings, starting from the 2000
th
;
frame 2 : reading of 59 recordings, starting from the 1941
th
;
frame 3 : reading of 59 recordings, starting from the 1882
th
;
...
frame 33 : reading of 59 recordings, starting from the 112
th
frame 34 : reading of 59 recordings, starting from the 53
th
.
Attention when reading in repeater mode, it is advised to stop the datalogging to ensure that no
new recording will shift the storage table.
WaveTherm modules – application handbook page 55 of 65