FIGURE 10-1. Wiring panel thermistor locations on VOLT 108 (top) and VOLT 116 (bottom)
10.4 Fast measurements
Follow the steps below when designing fast-measurement networks:
1. Work out the time the VOLT 100 series will take to make all of the measurements (See
(p. 33)).
2. Calculate the CPI bit rate necessary to keep up with the sum of data generated by all
devices (
3. Determine if the physical layout of your network will allow for the calculated CPI bit rate
(See
See
Calculating network restrictions
(p. 51) for complete examples.
10.4.1 Measurement speed
Use the equations in
(p. 34) to ensure that the VOLT 100 series is able to make
measurements at the speed required. Compare that speed with the scan rate options for the data
logger to determine if the VOLT 100 series measurements can be done within the main scan or if
they need to be performed in a sub-scan or burst. The Sample Rate refers to the rate at which the
VOLT 100 series makes measurements when the
Reps
parameter is greater than 1.
VOLT 100 series
33