USER MANUAL – Z-GPRS2-SEAL / Z-LOGGER-SEAL
81
Three type of filters are available:
Scale:
The scale filter is used for apply a scale factor to the Modbus value, the filter result is obtained by the
relation:
𝐹𝑖𝑙𝑡𝑒𝑟 𝑂𝑢𝑡𝑝𝑢𝑡 = (𝑀𝑜𝑑𝑏𝑢𝑠 𝑉𝑎𝑙𝑢𝑒 × 𝐺𝑎𝑖𝑛) + 𝑂𝑓𝑓𝑠𝑒𝑡
Average:
The average filter is used for obtaining a moving average on the selected numbers of samples.
The filter result is obtained by the relation:
𝐹𝑖𝑙𝑡𝑒𝑟 𝑂𝑢𝑡𝑝𝑢𝑡 =
(∑
𝑀𝑜𝑑𝑏𝑢𝑠 𝑉𝑎𝑙𝑢𝑒
𝑛
𝑆𝑎𝑚𝑝𝑙𝑒𝑠 𝑁𝑅
𝑛=0
)
𝑆𝑎𝑚𝑝𝑙𝑒𝑠 𝑁𝑅