Spectrum Controls 1769sc-IF8u - Manual (Page 59)

Chapter 4: Module Data, Status, and Configuration 49
below that of the filter’s cut-off frequency. The cut-off frequency should
not be confused with the update time. The cut-off frequency relates to
how the digital filter attenuates frequency components of the input signal.
The update time defines the rate at which an input channel is scanned and
its channel data word is updated.
Enabling or Disabling a Channel (Bit 0)
You can enable or disable each of the six channels individually using bit
15. The module only scans enabled channels. Enabling a channel forces it
to be recalibrated before it measures input data. Disabling a channel sets
the channel data word to zero.
NOTE When a channel is not enabled (0), no input is provided to the
controller by the A/D converter. This speeds up the response of the active
channels, improving performance.
Channel Configuration (Words 10 to 17)
RESERVED
!
Attention! Words 10 through 17 must be set to zero.