Spectrum Controls 1746sc-INI4vi - Manual (Page 23)

Things To Consider Before Using
Your Module
Read this chapter to familiarize yourself with:
• how the processor communicates with your module
• the difference between channel update time and step response time
• selecting an input filter frequency
• auto-calibration time
• channel enable and disable times
• your module’s response to slot disabling
How The Processor
Communicates With
Your Module
Your processor transfers data to (and receives data from) the processor
through an image table residing in the data files of your processor. The
processor updates this image table once during each scan of your ladder
program. Figure 4 shows the output and input image table for your input
module.
Chapter 3