Spectrum Controls 1746sc-INO4vi - Manual (Page 27)

Chapter 4: Using Your Output Module 17
Output Image
The 8-word, output image (defined as the output from the SLC processor
to your module) defines how each channel on your module works:
• The output data words control output signal levels for each channel.
• The configuration bytes replace configuration DIP switches on your
module. In your output module, each word configures two channels
(one independent byte per channel).
• The output limit values define minimum and maximum output data
values, if output data limits are properly enabled.
• The user-defined scale values define how your module scales output
data values to analog output signals, if the User-Defined Scale data
format is selected.
For more information on the user-defined scale and output data limits,
see Optional: Setting The Output Data Limits (or User-Defined Scale),
later in this chapter.
Input Image
The 8-word, input image (defined as the input from your module to the
SLC processor) holds the data received by your module and provides the
status (configuration and operational state) of each channel.
Important – A data word is valid only when the channel is enabled and
there are no channel errors. A status word is valid only when the channel
is enabled and the module has processed all configuration changes.