Rockwell Automation 1746-NT8 SLC 500 Thermocouple/mV Analog Input Module User Manual - Manual (Page 106)

Publication 1746-UM022B-EN-P - January 2005
Glossary 4
Status word
Contains status information about the channel’s current configuration
and operational state. You can use this information in your ladder
program to determine whether the channel data word is valid.
Step response time
The time required for the A/D signal to reach 95% of its expected,
final value, given a full-scale step change in the input signal.
Update time
The time for the module to sample and convert a channel input signal
and make the resulting value available to the SLC processor.